Relevant bibliographies by topics / Measuring probe

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Measuring probe'

Author: Grafiati
Published: 4 June 2021
Last updated: 20 June 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Measuring probe.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Measuring probe"

1

Kalinin, Sergei. "Measuring Conductivity With Scanning Probe Microscopes." Microscopy Today 10, no. 2 (2002): 26–27. http://dx.doi.org/10.1017/s1551929500057837.

Full text
Abstract:
There are two kinds of conductivity measurements possible with scanning probe microscopy (SPM). In the first case, the specific resistance of material directly below the tip is probed. In the second case, SPM probes local potential induced by the lateral current applied through macroscopic contacts, thus providing the information on the mesoscopic transport properties of the sample.The first set of techniques is invariably based on measuring tip-surface current in contact or intermittent tapping mode. If the tip-surface contact resistance is small (good contact), the current will be limited by the spreading resistance of the sample from which specific resistance can be calculated, assuming that the contact area is known.
APA, Harvard, Vancouver, ISO, and other styles
2

Yu, Jing, Yan-ling Yang, Jin-hui Cai, and Dong-sheng Li. "Coupling error model for the contact probe of a three-dimensional screw thread-measuring machine." Measurement Science and Technology 33, no. 5 (2022): 055012. http://dx.doi.org/10.1088/1361-6501/ac4c0e.

Full text
Abstract:
Abstract Coupling error is an important factor that affects the measurement accuracy of the contact scanning probe of a three-dimensional thread-measuring machine. To address this issue, this paper proposes a coupling error model for contact scanning probes. First, the mechanical structure of the contact scanning probe was introduced, and the main source of its coupling error was analyzed. Second, material mechanics was used to conduct a geometry–force analysis on the guiding mechanism of the probe, thereby establishing a coupling error model. Finally, the experiments were carried out to verify the accuracy of the coupling error model. From the experimental verification, the movement of the measuring head by 10 μm increased the deviation of the probe displacement by 2 μm, indicating the probe deflection. Moreover, the calculated probe deflection angle was consistent with the theoretical value, validating the proposed coupling error model. This method provides an important theoretical basis for the decoupling of measuring probe, thereby improving the accuracy of the probe guiding mechanism.
APA, Harvard, Vancouver, ISO, and other styles
3

Hershey, David R. "Measuring Growing Media pH with Metal-probe and Glass Electrode pH Meters." HortScience 23, no. 3 (1988): 625. http://dx.doi.org/10.21273/hortsci.23.3.625.

Full text
Abstract:
Abstract Probe pH meters are marketed by many horticultural suppliers and cost from $5 to $21. A probe pH meter consists of an analog meter attached to one or two metal probes. To measure pH a probe is pushed into moist growing medium, and the indicator needle points to the pH. Despite low cost and seemingly simple operation, probe pH meters have been criticized as being unsuitable for horticultural use (1, 3). I, therefore, evaluated the accuracy of a probe pH meter for measuring growing media pH.
APA, Harvard, Vancouver, ISO, and other styles
4

Gossweiler, C. R., P. Kupferschmied, and G. Gyarmathy. "On Fast-Response Probes: Part 1—Technology, Calibration, and Application to Turbomachinery." Journal of Turbomachinery 117, no. 4 (1995): 611–17. http://dx.doi.org/10.1115/1.2836579.

Full text
Abstract:
A system for fast-response probe measurements in turbomachine flows has been developed and tested. The system has been designed for 40 kHz bandwidth and used with various in-house built probes accommodating up to four piezoresistive pressure transducers. The present generation of probes works accurately up to several bar pressure and 120°C temperature. The probes were found to be quite robust. The use of a miniature pressure transducer placed in the head of a probe showed that a precise packaging technique and a careful compensation of errors can considerably improve the accuracy of the pressure measurement. Methods for aerodynamic probe calibration and off-line data evaluation are briefly presented. These aimed, e.g., in the case of a four-hole probe, at measuring the velocity fluctuations as characterized by yaw, pitch, total pressure, and static pressure and at deriving mean values and spectral or turbulence parameters. Applications of the measuring system to turbomachinery flow in a radial compressor and to a turbulent pipe flow demonstrate the performance of the measuring system.
APA, Harvard, Vancouver, ISO, and other styles
5

Brau, Agustín, Margarita Valenzuela, Jorge Santolaria, and Juan José Aguilar. "Evaluation Of Different Probing Systems Used In Articulated Arm Coordinate Measuring Machines." Metrology and Measurement Systems 21, no. 2 (2014): 233–46. http://dx.doi.org/10.2478/mms-2014-0020.

Full text
Abstract:
Abstract This paper presents a comparison of different techniques to capture nominal data for its use in later verification and kinematic parameter identification procedures for articulated arm coordinate measuring machines (AACMM). By using four different probing systems (passive spherical probe, active spherical probe, self-centering passive probe and self-centering active probe) the accuracy and repeatability of captured points has been evaluated by comparing these points to nominal points materialized by a ball-bar gauge distributed in several positions of the measurement volume. Then, by comparing these systems it is possible to characterize the influence of the force over the final results for each of the gauge and probing system configurations. The results with each of the systems studied show the advantages and original accuracy obtained by active probes, and thus their suitability in verification (active probes) and kinematic parameter identification (self-centering active probes) procedures.
APA, Harvard, Vancouver, ISO, and other styles
6

Smith, K. B., and Y. F. Zheng. "Accuracy Analysis of Point Laser Triangulation Probes Using Simulation." Journal of Manufacturing Science and Engineering 120, no. 4 (1998): 736–45. http://dx.doi.org/10.1115/1.2830214.

Full text
Abstract:
Point Laser Triangulation (PLT) probes are relatively new noncontact probes being integrated with Coordinate Measuring Machines (CMMs). Two prominent advantages of PLT probes are fast measuring speeds (typically 100 to 1000 times faster than touch probes) and no contact force is required to take measurements making soft or fragile objects measurable. These advantages have motivated the integration of PLT probes onto CMM. However, because the PLT probe is an electro-optics device, many factors related to optics affect its operation, such as sensor-to-surface orientation and surface reflectivity. To study and better understand these error sources, PLT probe models are needed to simulate observed measurement errors. This article presents a new PLT probe model, which simulates observed measurement errors and shows the effects of placement and orientation of internal components. This PLT probe model is a combination of internal component models developed using geometrical optics. The model successfully simulates measurement errors from specular reflection observed experimentally with real PLT probes. The model also allows the parameters of internal components to be studied.
APA, Harvard, Vancouver, ISO, and other styles
7

Michihata, Masaki. "Surface-Sensing Principle of Microprobe System for Micro-Scale Coordinate Metrology: A Review." Metrology 2, no. 1 (2022): 46–72. http://dx.doi.org/10.3390/metrology2010004.

Full text
Abstract:
Micro-coordinate measuring machines (micro-CMMs) for measuring microcomponents require a probe system with a probe tip diameter of several tens to several hundreds of micrometers. Scale effects work for such a small probe tip, i.e., the probe tip tends to stick on the measurement surface via surface adhesion forces. These surface adhesion forces significantly deteriorate probing resolution or repeatability. Therefore, to realize micro-CMMs, many researchers have proposed microprobe systems that use various surface-sensing principles compared with conventional CMM probes. In this review, the surface-sensing principles of microprobe systems were the focus, and the characteristics were reviewed. First, the proposed microprobe systems were summarized, and the probe performance trends were identified. Then, the individual microprobe system with different sensing principles was described to clarify the performance of each sensing principle. By comprehensively summarizing multiple types of probe systems and discussing their characteristics, this study contributed to identifying the performance limitations of the proposed micro-probe system. Accordingly, the future development of micro-CMMs probes is discussed.
APA, Harvard, Vancouver, ISO, and other styles
8

Li, Weijie, Tiejun Liu, Shasha Gao, Mingzhang Luo, Jianjun Wang, and Jianchao Wu. "An electromechanical impedance-instrumented corrosion-measuring probe." Journal of Intelligent Material Systems and Structures 30, no. 14 (2019): 2135–46. http://dx.doi.org/10.1177/1045389x19861776.

Full text
Abstract:
Corrosion of metallic structures widely existed in multiple industries, such as oil and gas, civil infrastructure, aerospace, mechanical, mining, and processing. Current available corrosion-monitoring methods are based on different sensing principles, which have their own advantages, and some drawbacks that may limit their application on some aspects. This article presents an electromechanical impedance-instrumented corrosion-measuring probe for corrosion monitoring. The proposed probe is fabricated by attaching a circular lead zirconate titanate patch onto a metal rod. Compared to other electromechanical impedance-based corrosion-monitoring methods, the probe is capable of isolating the influence of structural complexity, variations in loading and boundary conditions. Five probes were fabricated in the experimental study and three of them were subjected to accelerated corrosion tests to mimic the corrosion-induced mass loss damage. Results showed that the peak magnitude of the conductance signatures was reduced with the increase in corrosion amount. The variations in the conductance signatures were quantified by three statistical quantifying metrics, that is, root-mean-square deviation, mean absolute percentage deviation, and correlation coefficient deviation. All these metrics increase with the increase in corrosion amount, which can be used as an indicator of the corrosion process. This study proves that the proposed corrosion-measuring probe is effective in monitoring corrosion and shows promising application potential. This research also serves as a proof-of-concept study to demonstrate the capability of the electromechanical impedance technique in monitoring mass loss due to corrosion.
APA, Harvard, Vancouver, ISO, and other styles
9

Jackson, Steven J., and Stephen Russell. "A precise, reproducible method for measuring ultrasound probe slice thickness using a Gammex 403 phantom." Ultrasound 27, no. 3 (2019): 148–55. http://dx.doi.org/10.1177/1742271x19830742.

Full text
Abstract:
A precise, reproducible method for measuring ultrasound probe slice thickness has been developed for linear array ultrasound probes. The method used a custom built jig to draw the probe along the surface of a Gammex 403 phantom, with the image plane parallel to the filaments within the phantom. Still images at 0.5 mm intervals are saved for post-processing using in-house software. Slice thickness measurements with a precision of 0.1 mm are obtained. The method was shown to give reproducible estimates of probe slice thickness at several depths to within 0.4 mm during repeat tests. The method was able to provide information about the slice thickness of different sections of the probe face. It is expected that the method can quantify changes in probe performance due to lens wear or replacement over time that may elude both in-plane and in-air reverberation-based tests. A total of 18 linear probes were tested across eight centres, including six specialist vascular ultrasound centres.
APA, Harvard, Vancouver, ISO, and other styles
10

Magkoutas, Konstantinos, Theofilos Efstathiadis, and Anestis Kalfas. "Experimental investigation of geometry effects and performance of five-hole probe in measuring jets in crossflow." E3S Web of Conferences 345 (2022): 01005. http://dx.doi.org/10.1051/e3sconf/202234501005.

Full text
Abstract:
Vortical and shear flows are common in turbomachinery. Multi-hole pressure probes are used in turbomachinery flows in order to provide robust and accurate measurements of both pressure and velocity components. In this study, two different miniature five-hole probes are designed and fabricated, both with a cobra shape. The probe tip was 1.45 mm and it was maintained in that size for the length of the cobra shape formation, providing very close proximity to the solid boundaries and reduced flow blockage. The difference among the probes corresponded to the head geometry, as the one probe was formed with a pyramid tip shape, while the other was maintained with a flat shape. The calibration process was carried out in an open-circuit suction wind tunnel for the range of ±32⁰ in yaw and pitch direction. The results showed that the pyramid probe exhibits a high flow angle spatial sensitivity and a reliable measurement range of ±28⁰ in yaw and pitch direction. The flat probe provided unexpected well angle sensitivity and reliable measurements data despite the fact that it is of a very simple form. The pyramid probe showed superior performance. In particular, the pyramid probe offers 12.5% wider operating range. In order to prove the effectiveness of the pyramid probe, measurements were obtained in a jet in cross flow. In order to evaluate the performance of the probe, further, a surface fit model was employed to produce ideal calibration coefficients. These were used to redefine the magnitude of the velocities in the measured flow domain. The accuracy in measurements was assessed, comparing the velocities produced by the two variants of pressure coefficients. The results indicate that the pyramid probe operates reliably in a very large range of constantly changing velocity vector, which occurs in jet in cross flow.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Measuring probe"

1

Wiederhold, Curtis P. "Analytical Comparison of Multimicrophone Probes in Measuring Acoustic Intensity." BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/3076.

Full text
Abstract:
In the late 1970s, a method was developed to estimate acoustic intensity in one dimension by taking the cross-spectral density of two closely-spaced microphone signals. Since then, multimicrophone probes have been developed to measure three-dimensional intensity as well as energy density. Their usefulness has led to the design of various types of multimicrophone probes, the most common being the four-microphone orthogonal, the four-microphone regular tetrahedron, and the six-microphone designs. These designs generally either consist of microphones suspended in space near each other or mounted on the surface of a sphere. This work analytically compares the relative merits of each probe design in measuring acoustic intensity and investigates the various finite-sum and finite-difference processing methods used with each. The analysis is limited to probes consisting of perfect point sensors in plane wave fields. The comparison is given in terms of average and maximum errors for intensity magnitude and direction as a function of angle of incidence as well as the spread between maximum and minimum errors for intensity magnitude. After existent probe geometries are reviewed, optimization techniques are introduced to predict what the optimal probe geometry would be for any given scenario. The probe is optimized to give the lowest intensity error averaged over angle of incidence of plane waves. This is done for full-space and half-space scenarios.
APA, Harvard, Vancouver, ISO, and other styles
2

Karuc, Emre. "Design Of A Touch Trigger Probe For A Coordinate Measuring Machine." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12609112/index.pdf.

Full text
Abstract:
Coordinate Measuring Machines (CMMs) have been widely used in industry in order to determine the form / dimensional tolerances of workpieces with very complicated geometrical shapes. Therefore, CMM is an important tool during the manufacturing and quality control phases. Workpiece to be measured on a CMM is probed via touch trigger probe through its stylus tip. In other words, by virtue of the touch trigger probes CMM can acquire the dimensional data of the workpiece that is to be measured. Therefore the probe has become the most vital and fundamental part of the CMM. In this thesis, a novel type of touch trigger probe / scanning probe is proposed. The proposed probe can also be used as a scanning probe for different applications. The main purpose of this thesis is to develop a novel type of touch trigger / scanning probe that has different kinematic stage and sensing stage than the other probes currently used in the industry. Giant Magnetoresistive (GMR) sensors are used for building the sensing stage of the proposed probe. GMR sensors are selected due to their outstanding sensitivity to small disturbances. Furthermore, in order to test the proposed probe<br>an anvil gauge setup is designed and proposed in this study. Finally, proposed probe is tested on a three-axis computer controlled electrical discharge machine (EDM), and the results acquired from those experiments are discussed.
APA, Harvard, Vancouver, ISO, and other styles
3

Yang, Qingping. "A hig precision probe system for three dimensional coordinate measurement." Thesis, Brunel University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339317.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Sieberg, Jennifer Lynn. "Measuring Experimental Design Ability: A Test to Probe Critical Thinking." Bowling Green, Ohio : Bowling Green State University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=bgsu1214238271.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Griffin, Yve. "Measuring children's reaction times to pictures using dot probe paradigm." Thesis, University of East Anglia, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.501114.

Full text
Abstract:
Aggression is a pervasive, wide spread problem that has a number of implications, one of which is the quality of the individual's relationship with peers, as they are often socially maladiusted. The Social Information Processing Model (Crick & Dodge, 1994) has frequently been used to conceptualise the difficulties socially maladjusted children experience, with one proposal being that they selectively attend to hostile or threatening cues in the environment. This study attempted to addresses weaknesses in the traditional methodology used to assess the model's applicability by proposing an alternative methodology, using a dot probe task. Based on the assumptions made by the model, it was hypothesised that children rated as experiencing difficulties, particularly in the form of conduct problems or peer relationships, would demonstrate an attentional bias towards hostile or ambiguous pictures. The hypotheses were tested using a correlational design, with a sample of 72 boys aged 11 to 13 years, recruited from local secondary schools. Data relating to the participants' social adjustment was gathered from both parents and the participants, using the appropriate versions of the Strengths and Difficulties Questionnaires.
APA, Harvard, Vancouver, ISO, and other styles
6

Verfl, Jan. "Aplikace měřicích sond v procesu soustružení." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229354.

Full text
Abstract:
My diploma work is focused on implementation of measuring probe to process of cutting operation by turning and description of their effective usage ways. Measuring probe are used as correction during turning process or to control measuring of turning work eventually to signal mistake in process. In practical part the laser measuring probe is used to control shaft functional dimensions. Measuring is done after tooling and it substitute exit control. Laser probe was also reviewed regarding usability for given purpose as measurement tool and in the same time were reviewed time and cost differences against alternative turning process.
APA, Harvard, Vancouver, ISO, and other styles
7

Gu, Jianwen Wendy 1981. "Measuring mechanical properties of the tectorial membrane with a microfabricated probe." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/28530.

Full text
Abstract:
Thesis (M. Eng.)--Massachusetts Institute of Technology, Biological Engineering Division, 2004.<br>Includes bibliographical references (leaf 39).<br>Dynamic material properties of the isolated mouse tectorial membrane (TM) were quantified by applying sinusoidal shearing forces to the TM with a microfabricated probe (contact area 30 x 30 [micro]m²). Forces in the range 30-300 nN with frequency in the range 10-9000 Hz were applied tangentially to the surfaces of four TM specimens. We found that TM displacement was linear with respect to force. The TM exhibited both elastic and viscous characteristics, with the elastic behavior being more prominent. The elastic and viscous components of TM impedance remained proportional through two decades of frequency. The radial impedance was approximately three times larger than the longitudinal impedance. The point stiffness of the TM increased with frequency when radial forces were applied but showed no trend with frequency for longitudinal forces. Displacement of surrounding tissue decreased as distance from the probe increased. Space constants were on the order of tens of micrometers. These results represent the most detailed shear measurements to date of the isolated TM and are consistent with those obtained using the magnetic bead method [AF00].<br>by Jianwen Wendy Gu.<br>M.Eng.
APA, Harvard, Vancouver, ISO, and other styles
8

Horáček, Kryštof. "Aplikace měřicích sond v procesu frézování na CNC stroji MCV1210." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-400954.

Full text
Abstract:
This diploma thesis focuses on the application of measuring probes in the machining process. The main goal of the thesis is to create sample procedures for measuring cycles and functions in a CNC machining process using MCV 1210 and selected measuring software. In the first part of the thesis available methods of machine measurement are outlined with a great emphasis on the description of measurement principles, construction, and measurement signal transmission methods between tool probes and the workpiece. The second part of the thesis deals with the application of measuring probes in the machining of the designed test piece using the Productivity+TM and Sinumerik ShopMill softwares. The work also includes an economic evaluation of the profit of an investment in the mentioned measuring equipment.
APA, Harvard, Vancouver, ISO, and other styles
9

Bittle, Steven Douglas. "An active piezoelectric probe for precision measurement on a coordinate measuring machine (CMM)." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/18186.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Martin, Edward C. "Methods of Measuring for Irrigation Scheduling - WHEN." College of Agriculture, University of Arizona (Tucson, AZ), 2014. http://hdl.handle.net/10150/333138.

Full text
Abstract:
Revised; Originally published: 2009<br>6 pp.<br>Proper irrigation management requires that growers assess their irrigation needs by taking measurements of various physical parameters. Some use sophisticated equipment while others use tried and true common sense approaches. Whichever method used, each has merits and limitations. In developing any irrigation management strategy, two questions are common: “When do I irrigate?” and “How much do I apply?” This bulletin deals with the WHEN.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Measuring probe"

1

W, Caskey G., and National Institute of Standards and Technology (U.S.), eds. A users' guide to NIST SRM 2084: CMM probe performance standard. U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

A, Frahm R., Scherrer J. R, and United States. National Aeronautics and Space Administration., eds. Soft particle spectrometer, Langmuir probe, and data analysis for aerospace magnetospheric/thermospheric coupling rocket program: Final technical report, NASA grant NAG5-5005 ... May 1, 1993 - October 31, 1997. National Aeronautics and Space Administration, 1997.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

L, Snow W., and Langley Research Center, eds. Video photographic considerations for measuring the proximity of a probe aircraft with a smoke seeded trailing vortex. National Aeronautics and Space Administration, Langley Research Center, 1990.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

United States. National Aeronautics and Space Administration., ed. KC-135 flight testing of void fraction capacitance probe for microgravity two-phase flow: Under NASA JSC grant: NAG 9-787. National Aeronautics and Space Administration, 1996.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

United States. National Aeronautics and Space Administration., ed. KC-135 flight testing of void fraction capacitance probe for microgravity two-phase flow: Under NASA JSC grant: NAG 9-787. National Aeronautics and Space Administration, 1996.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

United States. National Aeronautics and Space Administration., ed. KC-135 flight testing of void fraction capacitance probe for microgravity two-phase flow: Under NASA JSC grant: NAG 9-787. National Aeronautics and Space Administration, 1996.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

United States. National Aeronautics and Space Administration., ed. KC-135 flight testing of void fraction capacitance probe for microgravity two-phase flow: Under NASA JSC grant: NAG 9-787. National Aeronautics and Space Administration, 1996.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

A, Bauserman Willard, and United States. National Aeronautics and Space Administration. Scientific and Technical Information Program., eds. Total temperature probes for high-temperature hypersonic boundary-layer measurements. National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Program, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

M, Haase Sally, and Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.), eds. Measuring soil and tree temperatures during prescribed fires with thermocouple probes. U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Research Station, 1992.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Serdula, Claire D. Testing of fibreoptic probes for measuring the size distribution of large bubbles. National Library of Canada = Bibliothèque nationale du Canada, 1999.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Measuring probe"

1

Pandolfi, Camilla, Sergio Mugnai, Elisa Azzarello, Elisa Masi, Susanna Pollastri, and Stefano Mancuso. "The Vibrating Probe Technique in the Study of Root Physiology Under Stress." In Measuring Roots. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-22067-8_4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Dammer, U., D. Anselmetti, M. Dreier, et al. "Measuring Molecular Adhesion with Force Microscopy." In Forces in Scanning Probe Methods. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0049-6_59.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Glatzel, Th. "Measuring Atomic-Scale Variations of the Electrostatic Force." In Kelvin Probe Force Microscopy. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-22566-6_13.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Rosenwaks, Y., G. Elias, E. Strassbourg, A. Schwarzman, and A. Boag. "The Effect of the Measuring Tip and Image Reconstruction." In Kelvin Probe Force Microscopy. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-22566-6_4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Hou, A. S., F. Ho, and D. M. Bloom. "Measuring Ultrafast Voltage Signals Using a Scanning Force Microscope." In Forces in Scanning Probe Methods. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0049-6_4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Ji, J. J., and M. P. Brungs. "A Probe for Measuring Oxygen Activity in Molten Glasses." In Science and Technology of Zirconia V. CRC Press, 2023. http://dx.doi.org/10.1201/9781003421290-67.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Watanabe, M., and R. Furutani. "Development of a Sensitive Probe for Coordinate Measuring Machines." In Key Engineering Materials. Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-977-6.325.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Hurley, D. C. "Measuring Mechanical Properties on the Nanoscale with Contact Resonance Force Microscopy Methods." In Scanning Probe Microscopy of Functional Materials. Springer New York, 2010. http://dx.doi.org/10.1007/978-1-4419-7167-8_4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Tian, Dou, Liming Jiang, Zhu Ding, and Yingcai Guo. "Numerical Simulation and Experimental Research of Mud Resistivity Measuring Probe." In Proceedings of the International Field Exploration and Development Conference 2021. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2149-0_388.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Kupiec, Robert, Wiktor Harmatys, Izabela Sanetra, Katarzyna Składanowska, and Ksenia Ostrowska. "Development of the Handheld Measuring Probe for a 3D Scanner." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-03925-6_11.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Measuring probe"

1

McKinlay, Jaden, Markus Rambach, Aaron Z. Goldberg, Khabat Heshami, Luis Sánchez-Soto, and Andrew G. White. "Measuring impossible parameters with indefinite causal order." In CLEO: Fundamental Science. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_fs.2024.fm4k.2.

Full text
Abstract:
We demonstrate that a probe traversing a noisy channel and a measurement channel withstands arbitrarily more noise than any system with definite causal order, even if the probe is fully mixed and the noisy channel erases all information.
APA, Harvard, Vancouver, ISO, and other styles
2

Sato, Genki, and Hiroyuki Arai. "A Dual-polarized Tapered Slot Antenna for Measuring probe." In 2024 International Symposium on Antennas and Propagation (ISAP). IEEE, 2024. https://doi.org/10.1109/isap62502.2024.10845950.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Barnes, John R., and Ted M. Doniguian. "Measuring Corrosion beneath an Unbonded Coating." In CORROSION 1999. NACE International, 1999. https://doi.org/10.5006/c1999-99220.

Full text
Abstract:
Abstract Measurements beneath unbonded coatings, on a water main buried to a depth of 25 feet, are used to investigate the use of cathodic protection for mitigating corrosion. An electrical resistance probe, inserted beneath a coating on a 12 foot diameter water main, indicated that cathodic protection can be used to minimize corrosion.
APA, Harvard, Vancouver, ISO, and other styles
4

Doronin, Aleksei, Nikolai Gorev, and Inna Kodzhespirova. "Measuring the Line Density of Plasma Electrons by Three-Probe Microwave Interferometry." In 2024 IEEE 29th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED). IEEE, 2024. http://dx.doi.org/10.1109/diped63529.2024.10706050.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Deckert, Thomas, Lukas Kaimann, Mattia Piana, Marc Vanden Bossche, Martin Obermaier, and Dirk Plettemeier. "Beamforming Multi-Element Near-Field Probe Scales to Measuring Large Phased Arrays." In 2025 16th German Microwave Conference (GeMiC). IEEE, 2025. https://doi.org/10.23919/gemic64734.2025.10979160.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Hermann, Gyula. "A low cost submicron measuring probe." In 2009 5th International Symposium on Applied Computational Intelligence and Informatics (SACI). IEEE, 2009. http://dx.doi.org/10.1109/saci.2009.5136246.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Oshima, Kazumasa, Yasuyuki Ishida, Shin'ichi Konomi, Niwat Thepvilojanapong, and Yoshito Tobe. "A human probe for measuring walkability." In the 7th ACM Conference. ACM Press, 2009. http://dx.doi.org/10.1145/1644038.1644097.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Georgakis, C., I. Bennett, and P. C. Ivey. "Fast Response Probes Measuring Unsteady Flows in High-Speed Research Compressors." In ASME Turbo Expo 2003, collocated with the 2003 International Joint Power Generation Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/gt2003-38160.

Full text
Abstract:
It is well recognised that multi-sensor fast response probes are widely used on several applications concerning unsteady flow measurements. Often the size of these probes is larger than ideal. It is probably this reason that the single sensor probes are sometimes preferred in the survey of the unsteady flows in the turbomachinery applications. This in turn can be of benefit due to the limited space often found in compressors. The advent of these miniature probes has been made possible due to the availability of small sensors capable of withstanding relatively high temperatures. There is no doubt that as the technology improves, the size of the probes is likely to be reduced. This will make it possible to use these probes in lower cost, smaller scale facilities. The behavior of a fast response probe is examined in detail prior to the presentation of a set of unsteady measurements acquired near the impeller tip region. The data obtained from the calibration routine is then compared with the actual measurements. Errors that could possibly be arising due to temperature drift of the sensor are taken into account and reduced to a minimum. The fast response probe is largely sensitive to pressure fluctuations that, after correction with temperature, result in an actual pressure reading. The sensitivity of the probe has proved to be adequate for measurement of flow direction and total pressure over a broad angular range. The simple geometry and small size of the probe contributes to a reduction in the blockage effects, the enhancement of the near wall measurements, the reduction of the run-time costs, and raise the confidence in the experiment. This fast response probe was extensively used to traverse the blade passage width. Detailed measurements clearly showed that strong pulsations dominate the distorted impeller exit flow.
APA, Harvard, Vancouver, ISO, and other styles
9

Hoenen, Herwart T., Robert Kunte, Phillip Waniczek, and Peter Jeschke. "Measuring Failures and Correction Methods for Pneumatic Multi-Hole Probes." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-68113.

Full text
Abstract:
Systematic measurements have been performed in a free stream in order to analyse the measuring behaviour of pneumatic multi-hole probes in the gradient field of a wake of an airfoil. The five-hole probe was traversed in different axial distances from the trailing edge and the results were compared to PIV and hot film probe measurements. The direct comparison of the three measurement techniques shows that too small axial distances between a five-hole probe and an airfoil trailing edge introduce significant measurement errors. Different effects were analysed in order to evaluate their influence on the measuring results and to estimate the deviation from the real flow properties. The limitations of probe measurements and the influences of the probe on the flow field are discussed. It is explained how pneumatic multi-hole probe measuring data can be corrected in order to improve the measuring results. In order to demonstrate the suitability of the correction method for turbo machinery application it is applied to measurement results of an axial compressor test rig.
APA, Harvard, Vancouver, ISO, and other styles
10

Hermann, Gyula. "Overview of Various Tactile Measuring Probe Constructions." In 2019 IEEE 23rd International Conference on Intelligent Engineering Systems (INES). IEEE, 2019. http://dx.doi.org/10.1109/ines46365.2019.9109474.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Measuring probe"

1

Drury, M. J. A simple needle-probe method for measuring thermal diffusivity of unconsolidated materials. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1985. http://dx.doi.org/10.4095/321396.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Bruce and Fiore. L51629 Users Manual-Field Validation of the Low-Frequency Eddy Current Instrument-Software Listings. Pipeline Research Council International, Inc. (PRCI), 1990. http://dx.doi.org/10.55274/r0010602.

Full text
Abstract:
When an eddy current probe is placed near a conductive material, the alternating magnetic field from the probe causes electrical currents to flow in the material. These currents have associated with them their own magnetic field, which opposes the original magnetic field from the coil. The result is that the impedance of the probe is greatly reduced by the presence of the conducting material. If the conductor is also magnetic, as is normal steel, the situation is similar though slightly more complicated. Here, the impedance of the probe may be either increased or decreased depending on the permeability of the material and the frequency of the alternating field. Anything that affects the flow of current in the conductive material will also affect the impedance of the eddy current probe. For example, the electrical currents cannot flow through a crack but must flow around it. The alteration in the currents also changes the magnetic field produced by the currents and, consequently, the impedance of the probe. Normally, the impedance change caused by a defect is much smaller than that caused by the presence of the material in the first place, and measuring this small change requires a bridge circuit much like the balanced bridge used with strain gauges. The balanced bridge allows one to amplify the small changes in impedance caused by defects in the presence of the much larger change caused by the presence of the conductive and magnetic pipeline steel. The LFEC instrument is constructed using an� IBM-AT compatible portable computer. Inside the PAC-386 are two plug-in circuit cards that turn the PAC-386 into an eddy current instrument. The first, also commercially available, is a Spectrum DSP56000 digital signal processing card, while the second is a specially-built interface card for the eddy current probe. The PAC-386 is a standard MS-DOS machine and will operate most MS-DOS software. In the discussion below, it is assumed that the user is familiar with the MSDOS operating system.
APA, Harvard, Vancouver, ISO, and other styles
3

McBrayer, Josefine, Darwin Serkland, Kyle Fenton, Christopher Apblett, Shelley Minteer, and Katharine Harrison. Silicon Consortium Project: No-Go on Moir Interferometry for Measuring SEI Strain as a Probe for Calendar Life Testing. Office of Scientific and Technical Information (OSTI), 2021. http://dx.doi.org/10.2172/1809920.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Hart, Carl R., and Gregory W. Lyons. A Measurement System for the Study of Nonlinear Propagation Through Arrays of Scatterers. Engineer Research and Development Center (U.S.), 2020. http://dx.doi.org/10.21079/11681/38621.

Full text
Abstract:
Various experimental challenges exist in measuring the spatial and temporal field of a nonlinear acoustic pulse propagating through an array of scatterers. Probe interference and undesirable high-frequency response plague typical approaches with acoustic microphones, which are also limited to resolving the pressure field at a single position. Measurements made with optical methods do not have such drawbacks, and schlieren measurements are particularly well suited to measuring both the spatial and temporal evolution of nonlinear pulse propagation in an array of scatterers. Herein, a measurement system is described based on a z-type schlieren setup, which is suitable for measuring axisymmetric phenomena and visualizing weak shock propagation. In order to reduce directivity and initiate nearly spherically-symmetric propagation, laser induced breakdown serves as the source for the nonlinear pulse. A key component of the schlieren system is a standard schliere, which allows quantitative schlieren measurements to be performed. Sizing of the standard schliere is aided by generating estimates of the expected light refraction from the nonlinear pulse, by way of the forward Abel transform. Finally, considerations for experimental sequencing, image capture, and a reconfigurable rod array designed to minimize spurious wave interactions are specified. 15.
APA, Harvard, Vancouver, ISO, and other styles
5

Tanthapanichakoon, Wiwut. Development of phase doppler anemometer for measuring velocity and size distribution of paticulate materials. Chulalongkorn University, 2004. https://doi.org/10.58837/chula.res.2004.72.

Full text
Abstract:
Particle size analysis is an essential analytical task in a large variety of processes of industrial and laboratorial relevance. Phase doppler anemometer (PDA) is one of well-established techniques allowing simultaneous measurement of velocity and size of particles, droplets, or bubbles in two-phase flows including spray atomization. The method is based upon the principle of light scattering interferometry. When a particle passes through the probe volume defined by the intersection of two laser beams, the phase of the light scattered by the particle carries information about the particle size, whereas its frequency provides the information of particle velocity. This research work has been devoted to the development of a one-dimensional PDA instrument by using He-Ne laser with wavelength of 632.8 nm and two detectors for measuring velocity and size distribution of water droplets generated by binary and ultrasonic nozzles. The calibration of the developed PDA with the transparent glass spheres of precisely known size was conducted before investigating the reliability and accuracy of the developed system by comparing the measurement results obtained from the developed with that of the commercial PDA instruments. It was found that the relative difference of the droplet mean velocity and diameter measured by the developed system were less than 15% and 25% respectively. These results demonstrate the potential of the PDA instrument developed in this work.
APA, Harvard, Vancouver, ISO, and other styles
6

Shenker, Moshe, Paul R. Bloom, Abraham Shaviv, et al. Fate of Phosphorus Originated from Treated Wastewater and Biosolids in Soils: Speciation, Transport, and Accumulation. United States Department of Agriculture, 2011. http://dx.doi.org/10.32747/2011.7697103.bard.

Full text
Abstract:
Beneficial use of reclaimed wastewater (RW) and biosolids (BS) in soils is accompanied by large input of sewage-originated P. Prolonged application may result in P accumulation up to levelsBeneficial use of reclaimed wastewater (RW) and biosolids (BS) in soils is accompanied by large input of sewage-originated P. Prolonged application may result in P accumulation up to levels that impair plant nutrition, increase P loss, and promote eutrophication in downstream waters. This study aims to shed light on the RW- and BS-P forms in soils and to follow the processes that determine P reactivity, solubility, availability, and loss in RW and BS treated soils. The Technion group used sequential P extraction combined with measuring stable oxygen isotopic composition in phosphate (δ18OP) and with 31P-NMR studies to probe P speciation and transformations in soils irrigated with RW or fresh water (FW). The application of the δ18OP method to probe inorganic P (Pi) speciation and transformations in soils was developed through collaboration between the Technion and the UCSC groups. The method was used to trace Pi in water-, NaHCO3-, NaOH-, and HCl- P fractions in a calcareous clay soil (Acre, Israel) irrigated with RW or FW. The δ18OP signature changes during a month of incubation indicated biogeochemical processes. The water soluble Pi (WSPi) was affected by enzymatic activity yielding isotopic equilibrium with the water molecules in the soil solution. Further it interacted rapidly with the NaHCO3-Pi. The more stable Pi pools also exhibited isotopic alterations in the first two weeks after P application, likely related to microbial activity. Isotopic depletion which could result from organic P (PO) mineralization was followed by enrichment which may result from biologic discrimination in the uptake. Similar transformations were observed in both soils although transformations related to biological activity were more pronounced in the soil treated with RW. Specific P compounds were identified by the Technion group, using solution-state 31P-NMR in wastewater and in soil P extracts from Acre soils irrigated by RW and FW. Few identified PO compounds (e.g., D-glucose-6-phosphate) indicated coupled transformations of P and C in the wastewater. The RW soil retained higher P content, mainly in the labile fractions, but lower labile PO, than the FW soil; this and the fact that P species in the various soil extracts of the RW soil appear independent of P species in the RW are attributed to enhanced biological activity and P recycling in the RW soil. Consistent with that, both soils retained very similar P species in the soil pools. The HUJ group tested P stabilization to maximize the environmental safe application rates and the agronomic beneficial use of BS. Sequential P extraction indicated that the most reactive BS-P forms: WSP, membrane-P, and NaHCO3-P, were effectively stabilized by ferrous sulfate (FeSul), calcium oxide (CaO), or aluminum sulfate (alum). After applying the stabilized BS, or fresh BS (FBS), FBS compost (BSC), or P fertilizer (KH2PO4) to an alluvial soil, P availability was probed during 100 days of incubation. A plant-based bioassay indicated that P availability followed the order KH2PO4 &gt;&gt; alum-BS &gt; BSC ≥ FBS &gt; CaO-BS &gt;&gt; FeSul-BS. The WSPi concentration in soil increased following FBS or BSC application, and P mineralization further increased it during incubation. In contrast, the chemically stabilized BS reduced WSPi concentrations relative to the untreated soil. It was concluded that the chemically stabilized BS effectively controlled WSPi in the soil while still supplying P to support plant growth. Using the sequential extraction procedure the persistence of P availability in BS treated soils was shown to be of a long-term nature. 15 years after the last BS application to MN soils that were annually amended for 20 years by heavy rates of BS, about 25% of the added BS-P was found in the labile fractions. The UMN group further probed soil-P speciation in these soils by bulk and micro X-ray absorption near edge structure (XANES). This newly developed method was shown to be a powerful tool for P speciation in soils. In a control soil (no BS added), 54% of the total P was PO and it was mostly identified as phytic acid; 15% was identified as brushite and 26% as strengite. A corn crop BS amended soil included mostly P-Fe-peat complex, variscite and Al-P-peat complex but no Ca-P while in a BS-grass soil octacalcium phosphate was identified and o-phosphorylethanolamine or phytic acid was shown to dominate the PO fraction that impair plant nutrition, increase P loss, and promote eutrophication in downstream waters. This study aims to shed light on the RW- and BS-P forms in soils and to follow the processes that determine P reactivity, solubility, availability, and loss in RW and BS treated soils. The Technion group used sequential P extraction combined with measuring stable oxygen isotopic composition in phosphate (δ18OP) and with 31P-NMR studies to probe P speciation and transformations in soils irrigated with RW or fresh water (FW). The application of the δ18OP method to probe inorganic P (Pi) speciation and transformations in soils was developed through collaboration between the Technion and the UCSC groups. The method was used to trace Pi in water-, NaHCO3-, NaOH-, and HCl- P fractions in a calcareous clay soil (Acre, Israel) irrigated with RW or FW. The δ18OP signature changes during a month of incubation indicated biogeochemical processes. The water soluble Pi (WSPi) was affected by enzymatic activity yielding isotopic equilibrium with the water molecules in the soil solution. Further it interacted rapidly with the NaHCO3-Pi. The more stable Pi pools also exhibited isotopic alterations in the first two weeks after P application, likely related to microbial activity. Isotopic depletion which could result from organic P (PO) mineralization was followed by enrichment which may result from biologic discrimination in the uptake. Similar transformations were observed in both soils although transformations related to biological activity were more pronounced in the soil treated with RW. Specific P compounds were identified by the Technion group, using solution-state 31P-NMR in wastewater and in soil P extracts from Acre soils irrigated by RW and FW. Few identified PO compounds (e.g., D-glucose-6-phosphate) indicated coupled transformations of P and C in the wastewater. The RW soil retained higher P content, mainly in the labile fractions, but lower labile PO, than the FW soil; this and the fact that P species in the various soil extracts of the RW soil appear independent of P species in the RW are attributed to enhanced biological activity and P recycling in the RW soil. Consistent with that, both soils retained very similar P species in the soil pools. The HUJ group tested P stabilization to maximize the environmental safe application rates and the agronomic beneficial use of BS. Sequential P extraction indicated that the most reactive BS-P forms: WSP, membrane-P, and NaHCO3-P, were effectively stabilized by ferrous sulfate (FeSul), calcium oxide (CaO), or aluminum sulfate (alum). After applying the stabilized BS, or fresh BS (FBS), FBS compost (BSC), or P fertilizer (KH2PO4) to an alluvial soil, P availability was probed during 100 days of incubation. A plant-based bioassay indicated that P availability followed the order KH2PO4 &gt;&gt; alum-BS &gt; BSC ≥ FBS &gt; CaO-BS &gt;&gt; FeSul-BS. The WSPi concentration in soil increased following FBS or BSC application, and P mineralization further increased it during incubation. In contrast, the chemically stabilized BS reduced WSPi concentrations relative to the untreated soil. It was concluded that the chemically stabilized BS effectively controlled WSPi in the soil while still supplying P to support plant growth. Using the sequential extraction procedure the persistence of P availability in BS treated soils was shown to be of a long-term nature. 15 years after the last BS application to MN soils that were annually amended for 20 years by heavy rates of BS, about 25% of the added BS-P was found in the labile fractions. The UMN group further probed soil-P speciation in these soils by bulk and micro X-ray absorption near edge structure (XANES). This newly developed method was shown to be a powerful tool for P speciation in soils. In a control soil (no BS added), 54% of the total P was PO and it was mostly identified as phytic acid; 15% was identified as brushite and 26% as strengite. A corn crop BS amended soil included mostly P-Fe-peat complex, variscite and Al-P-peat complex but no Ca-P while in a BS-grass soil octacalcium phosphate was identified and o-phosphorylethanolamine or phytic acid was shown to dominate the PO fraction.
APA, Harvard, Vancouver, ISO, and other styles
7

Sackett, Stephen S., and Sally M. Haase. Measuring soil and tree temperatures during prescribed fires with thermocouple probes. U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station, 1992. http://dx.doi.org/10.2737/psw-gtr-131.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Pinnick, Ronald G., J. D. Pendleton, and Gorden Videen. Response Characteristics of Active Scattering Aerosol Spectrometer Probes Made by Particle Measuring Systems. Defense Technical Information Center, 2000. http://dx.doi.org/10.21236/ada376912.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Sun, Haiyan. Electromagnetic methods for measuring materials properties of cylindrical rods and array probes for rapid flaw inspection. Office of Scientific and Technical Information (OSTI), 2005. http://dx.doi.org/10.2172/850045.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Taylor. L51755 Development and Testing of an Advanced Technology Vibration Transmission. Pipeline Research Council International, Inc. (PRCI), 1996. http://dx.doi.org/10.55274/r0010124.

Full text
Abstract:
Fiber optic sensors have been under development in industrial and government laboratories around the world for over a decade. The commercial market for fiber sensors for measuring parameters such as temperature, displacement, and liquid level is now estimated to exceed $100 M/year. Aside from the commercial interest, the U. S. Department of Defense has vigorously pursued the development of fiber gyroscopes and hydrophones. In spite of the high level of research and development activity, however, until recently fiber sensors had not been successfully applied in high-temperature engine environments. The goal of this effort is to develop and test high-temperature fiber optic sensors and show that they are suitable for monitoring vibration and other instabilities in gas turbine engines. The underlying technology developed during the course of PRCI projects PR- 219-9120 and PR-219-9225 during 1991-94 serves as the foundation for PR-240-9416. Transducers with the fiber optic Fabry-Perot interferometer (FFPI) configuration have been adapted for use in the turbomachinery environment.To ensure the survival of the FFPI sensors at high temperatures, two techniques for coating the fibers with metal have been developed: electroplating and vacuum deposition. Coated sensors have subsequently been embedded in aluminum and brass alloys. Experiments on a small Sargent Welch turbine engine have shown the high sensitivity of embedded FFPI strain sensors to vibration in rolling bearings. Data have been collected in both the time and frequency domain. A new accelerometer design in which a metal-coated fiber containing the FFPI element is soldered directly to a diaphragm in a stainless steel housing shows response similar to a piezoelectric accelerometer in shaker table tests. The high sensitivity of the FFPI accelerometer has been demonstrated in field tests in a Solar Centaur turbine engine, and the design has survived temperatures greater than 500�C in a test oven. A magnetometer with a physical configuration similar to that of the accelerometer has been used to measure the distance from the sensor head to a rotating shaft made of ferromagnetic material. This device, which functions as a proximity probe, has been used to monitor shaft rotation rate (keyphasor application) and as a shaft thrust position sensor. These results indicate the potential for performing critical measurements in turbine engines with FFPI sensors. They can measure acceleration, distance (proximity), strain (as it relates to bearing defect diagnosis), and gas pressure, and can operate at higher temperatures than conventional transducers.
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Measuring probe' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography