Academic literature on the topic 'Inductive contact sensor'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Inductive contact sensor.'
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 "Inductive contact sensor"
1
Dean, Robert N., and Lauren E. Beckingham. "A PCB Sensor for Magnetic Materials." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2019, DPC (January 1, 2019): 001323–42. http://dx.doi.org/10.4071/2380-4491-2019-dpc-presentation_tha3_026.
Full textAbstract:
Printed circuit board (PCB) sensors are a sensor technology where the layout of traces on a PCB has been optimized so that the traces electromagnetically interact with the surrounding environment. These types of sensors can be manufactured at very low cost using standard commercially available low-cost printed circuit board fabrication. Exposed conductive electrodes on the circuit board are useful for measuring the electrical conductivity of the surrounding environment, and these sensors have been used in applications such as salinity measurement and dissolved ion content measurement of aqueous solutions. Insulated interdigitated electrode sensors are useful for capacitively analyzing the surrounding environment, and these sensors have been used to detect the presence of liquid water and to measure the moisture content of substances in physical contact with the sensor. Additionally, by measuring the complex impedance of the capacitive sensor over a wide frequency range, information concerning the chemical composition of the substance in contact with the sensor can be determined. In addition to conducive and capacitive PCB sensors, the third type of PCB sensor would be an inductive sensor. Although it is challenging to realize 3D coils in PCB technology, planar inductors can be realized in a single Cu layer on a PCB, and insulated from the environment using a cover layer of polymeric solder mask. This type of electrode structure can inductively couple with magnetic materials in close proximity to the sensor. A variety of magnetic materials exist, including iron, nickel and cobalt. Additionally, many alloys of these elements are also magnetic. Of particular interest are corrosion products with magnetic properties, such as iron(III) oxide, Fe3O2, also known as common rust. A thin layer of iron(III) oxide powder deposited on the sensor's active area results in a measureable increase in the sensor's inductance. As such, an inductive PCB sensor could be a low-cost option for detecting the presence of some corrosion products in its operating environment.
2
Sillanpää, Teemu, Alexander Smirnov, Pekko Jaatinen, Jouni Vuojolainen, Niko Nevaranta, Rafal Jastrzebski, and Olli Pyrhönen. "Three-Axis Inductive Displacement Sensor Using Phase-Sensitive Digital Signal Processing for Industrial Magnetic Bearing Applications." Actuators 10, no. 6 (May 31, 2021): 115. http://dx.doi.org/10.3390/act10060115.
Full textAbstract:
Non-contact rotor position sensors are an essential part of control systems in magnetically suspended high-speed drives. In typical active magnetic bearing (AMB) levitated high-speed machine applications, the displacement of the rotor in the mechanical air gap is measured with commercially available eddy current-based displacement sensors. The aim of this paper is to propose a robust and compact three-dimensional position sensor that can measure the rotor displacement of an AMB system in both the radial and axial directions. The paper presents a sensor design utilizing only a single unified sensor stator and a single shared rotor mounted target piece surface to achieve the measurement of all three measurement axes. The sensor uses an inductive measuring principle to sense the air gap between the sensor stator and rotor piece, which makes it robust to surface variations of the sensing target. Combined with the sensor design, a state of the art fully digital signal processing chain utilizing synchronous in-phase and quadrature demodulation is presented. The feasibility of the proposed sensor design is verified in a closed-loop control application utilizing a 350-kW, 15,000-r/min high-speed industrial induction machine with magnetic bearing suspension. The inductive sensor provides an alternative solution to commercial eddy current displacement sensors. It meets the application requirements and has a robust construction utilizing conventional electrical steel lamination stacks and copper winding.
3
Neumann, Anja, Dirk Hortig, and Marion Merklein. "Measurement of Material Flow in Series Production." Key Engineering Materials 473 (March 2011): 137–44. http://dx.doi.org/10.4028/www.scientific.net/kem.473.137.
Full textAbstract:
This paper provides first results of a contact-free measurement system for monitoring the material flow in series production which has been under investigation for more than one year. An inductive proximity sensor with analog output was used to measure its own sheet metal coverage. Multiple sensors were integrated in the blank holder without affecting the deep drawing process. The robustness of the monitoring principle was assessed under series production conditions by using optical measurement equipment. This paper describes the basic information of the inductive measurement, the comparison of the inductive and optical measurement results and analyses correlations between the sensors.
4
Gong, Yu, Jing Cai Zhang, and Hong Qi Liu. "Research on Online Measurement Method of Hole Diameter and Position." Applied Mechanics and Materials 347-350 (August 2013): 197–200. http://dx.doi.org/10.4028/www.scientific.net/amm.347-350.197.
Full textAbstract:
In this paper, research on measurement methods of hole during the parts online detection has been made. Both diameter and position of the hole are going to be detected in the same measurement system. In order to obtain higher accuracy and efficiency, a comparative analysis test of using the contact probes, the inductive sensor, the laser sensor, the forward and back lighting CCD imaging have been achieved. Results show that the contact measurement using inductive sensor is more suitable for the system, for the reason that it has higher reliability and efficiency.
5
Przysowa, Radosław, and Edward Rokicki. "Inductive sensors for blade tip-timing in gas turbines." Journal of KONBiN 36, no. 1 (December 1, 2015): 147–64. http://dx.doi.org/10.1515/jok-2015-0064.
Full textAbstract:
Abstract The paper reviews features and applications of the upgraded inductive sensor for BTT, which is able to operate in contact with exhaust gases of temperature even as high as 1200 K. The new design includes metal-ceramic housing ensuring proper heat transfer, magnetic circuit containing set of permanent magnets with various magnetic field values and Curie temperatures, completely redesigned windings and current/voltage converter used instead of an electromotive force amplifier. Its principle of operation is based on electro-dynamical interaction and therefore it may be referred as a passive eddy-current sensor. The sensor technique has been demonstrated on four stages of a surplus military turbofan including the high pressure turbine as part of the engine health monitoring system. We present signal samples and review methods used for online processing of time-of-arrival signals when only a limited number of sensors is available.
6
Loginov, Sergei, Dmitriy Fedorov, Igor Savrayev, Igor Plokhov, Andrey Hitrov, and Alexander Hitrov. "INDUCTIVE LINEAR DISPLACEMENT SENSOR IN ACTIVE MAGNETIC BEARING." ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 3 (June 20, 2019): 151. http://dx.doi.org/10.17770/etr2019vol3.4070.
Full textAbstract:
Active magnetic bearings are increasingly used in various fields of industry. The absence of mechanical contact makes it possible to use them in ultra-high-speed electric drives. The main trend of active magnetic bearings development is the improvement of the control system. The main problem of the control system is the displacement sensor (most of them has low accuracy and large interference). The sensor must have the following properties: simple in realization, high linearity of the characteristic, high sensitivity and noise immunity, high reliability. At the present time there is no sensor that satisfies all these conditions. Most manufacturers use various kinds of filters to get an accurate position signal. This increases the response time of the control system. Thus, problem of designing and modeling the position sensor, considered in the article is topical.
7
Rana, Srinivas, Boby George, and Varadarajan Jagadeesh Kumar. "An Efficient Digital Converter for a Non-Contact Inductive Displacement Sensor." IEEE Sensors Journal 18, no. 1 (January 1, 2018): 263–72. http://dx.doi.org/10.1109/jsen.2017.2772859.
Full text
8
Babu, Anish, and Boby George. "Design and Development of a New Non-Contact Inductive Displacement Sensor." IEEE Sensors Journal 18, no. 3 (February 1, 2018): 976–84. http://dx.doi.org/10.1109/jsen.2017.2780835.
Full text
9
Becker, Andrew. "Health indicator metrics applicable to inductive wear debris sensors." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 231, no. 5 (August 16, 2016): 583–93. http://dx.doi.org/10.1177/1350650116665047.
Full textAbstract:
The Inductive Wear Debris Sensor is a relatively new invention that is increasingly being used for the detection of incipient machinery damage or failures by sensing metallic debris in lubrication systems. This type of sensor is typically used in-line and has a superior particle size detection range compared to traditional techniques such as the ubiquitous spectrometric oil analysis. There is, however, very little in the literature regarding the application and interpretation of data arising from this type of sensor. Unlike other condition monitoring sensors, no data will be generated by an Inductive Wear Debris Sensor in an ideal system; however, in real applications it is necessary to discriminate between occasional particles unrelated to a failure and incipient failure particles. Inductive Wear Debris Sensor data could be misinterpreted if a simple cumulative count limit was applied to the data. A short-term rate of particle generation is sometimes used as an alternative; however, it too can be misleading with short succession particles producing high instantaneous rates possibly causing false alarms. The purpose of this work was to develop a robust metric (or group of metrics) that when applied to Inductive Wear Debris Sensor data would reliably identify a failure event and exclude non-failure related particles. The Health Indicator described herein consists of three subordinate Condition Indices that collectively are shown to reliably detect the onset of rolling contact fatigue. The metrics have been applied to bearing test rig data (seeded fault) and data obtained from a non-seeded fault test of a complex helicopter gearbox.
10
Guo, Yi-Xin, Cong Lai, Zhi-Biao Shao, Kai-Liang Xu, and Ting Li. "Differential Structure of Inductive Proximity Sensor." Sensors 19, no. 9 (May 13, 2019): 2210. http://dx.doi.org/10.3390/s19092210.
Full textAbstract:
The inductive proximity sensor (IPS) is applicable to displacement measurements in the aviation field due to its non-mechanical contact, safety, and durability. IPS can increase reliability of position detection and decrease maintenance cost of the system effectively in aircraft applications. Nevertheless, the specialty in the aviation field proposes many restrictions and requirements on the application of IPS, including the temperature drift effect of the resistance component of the IPS sensing coil. Moreover, reliability requirements of aircrafts restrict the use of computational-intensive algorithms and avoid the use of process control components. Furthermore, the environment of airborne electronic equipment restricts measurements driven by large current and proposes strict requirements on emission tests of radio frequency (RF) energy. For these reasons, a differential structured IPS measurement method is proposed in this paper. This measurement method inherits the numerical separation of the resistance and inductance components of the IPS sensing coil to improve the temperature adaptation of the IPS. The computational complexity is decreased by combining the dimension-reduced look-up table method to prevent the use of process control components. The proposed differential structured IPS is equipped with a differential structure of distant and nearby sensing coils to increase the detection accuracy. The small electric current pulse excitation decreases the RF energy emission. Verification results demonstrate that the differential structured IPS realizes the numerical decoupling calculation of the vector impedance of the sensing coil by using 61 look-up table units. The measuring sensitivity increased from 135.5 least significant bits (LSB)/0.10 mm of a single-sensing-coil structured IPS to 1201.4 LSB/0.10 mm, and the linear approximation distance error decreased from 99.376 μm to −3.240 μm. The proposed differential structured IPS method has evident comparative advantages compared with similar measuring techniques.
Dissertations / Theses on the topic "Inductive contact sensor"
1
Kalman, Babković. "Višenamenski integrisani senzor sile i pomeraja." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2016. https://www.cris.uns.ac.rs/record.jsf?recordId=100643&source=NDLTD&language=en.
Full textAbstract:
U doktorskoj disertaciji razmatra se merenje sile i pomeraja pomoćusenzora koji mogu da se integrišu u već postojeće elemente narobotskim i industrijskim sistemima. Sila se meri merenjemdeformacije elastičnog elementa. Za merenje pomeraja postignuto jena dva načina: optičkom komponentom i induktivnom strukturomizrađenom štampanjem na fleksibilnoj foliji i njenim odgovarajućimsečenjem. Merenje sile demonstrirano je na primeru klatna sa bazomkod kojeg se meri sila kontakta sa podlogom, a merenje pomeraja jepokazano na primeru merenja vibracija. Sistem za merenje vibracijadopunjen je i sistemom za automatsko podešavanje radne tačke koji semože iskoristiti za automatsku kalibraciju.In this thesis, measurement of force and displacement has been analyzedusing sensors which can be embedded into existing elements of robotic andindustrial systems. Force is measured by measuring the deformation ofelastic elements. Two mehtods have been applied to displacementmeasurement: an optical component and an inductive structure fabricated byprinting on flexible substrate and its subsequent cutting. Measurement offorce has been demonstrated on a pendulum attached to its base, where thecontact between the base and its support is measured. Displacementmeasurement has been shown by measuring vibration. The vibrationmeasurement system is supplemented with an automatic operating pointadjustment system which also adds an automatic calibration feature.
2
Novotný, Jan. "Návrh specielního měřicího zařízení pro kontrolu sražení hran." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231657.
Full textAbstract:
This diploma thesis consist of basic overview of contact and non-contact measuring methods used at present days across industrial Applications. On the base of given specification for designing of measuring station for measuring chamfer of rotary components The choice and evaluation of theoretical applicability for our application is performed. In the practical part of this diploma thesis The applicability is verified. Performance of these a few exemplary measuring shows possible way of design of constructional solution. All this in a close cooperation with company MESING.
3
Jeong, Seung Hee. "Soft Intelligence : Liquids Matter in Compliant Microsystems." Doctoral thesis, Uppsala universitet, Mikrosystemteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-281281.
Full textAbstract:
Soft matter, here, liquids and polymers, have adaptability to a surrounding geometry. They intrinsically have advantageous characteristics from a mechanical perspective, such as flowing and wetting on surrounding surfaces, giving compliant, conformal and deformable behavior. From the behavior of soft matter for heterogeneous surfaces, compliant structures can be engineered as embedded liquid microstructures or patterned liquid microsystems for emerging compliant microsystems. Recently, skin electronics and soft robotics have been initiated as potential applications that can provide soft interfaces and interactions for a human-machine interface. To meet the design parameters, developing soft material engineering aimed at tuning material properties and smart processing techniques proper to them are to be highly encouraged. As promising candidates, Ga-based liquid alloys and silicone-based elastomers have been widely applied to proof-of-concept compliant structures. In this thesis, the liquid alloy was employed as a soft and stretchable electrical and thermal conductor (resistor), interconnect and filler in an elastomer structure. Printing-based liquid alloy patterning techniques have been developed with a batch-type, parallel processing scheme. As a simple solution, tape transfer masking was combined with a liquid alloy spraying technique, which provides robust processability. Silicone elastomers could be tunable for multi-functional building blocks by liquid or liquid-like soft solid inclusions. The liquid alloy and a polymer additive were introduced to the silicone elastomer by a simple mixing process. Heterogeneous material microstructures in elastomer networks successfully changed mechanical, thermal and surface properties. To realize a compliant microsystem, these ideas have in practice been useful in designing and fabricating soft and stretchable systems. Many different designs of the microsystems have been fabricated with the developed techniques and materials, and successfully evaluated under dynamic conditions. The compliant microsystems work as basic components to build up a whole system with soft materials and a processing technology for our emerging society.
4
Yi-Hsuan, Liu, and 劉怡萱. "A Study on the Beginning Teacher’s Needs of Guidance and Induction Program Content at Senior High Schools." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/7k5p39.
Full textAbstract:
碩士國立臺北科技大學
技術及職業教育研究所
95
The Ministry of Education amended the Teacher Education Act in 2002, incorporating educational internship with pre-service training and reducing one-year educational internship interval into half-year. This difference may lead the prolonging of beginning teachers’ grope or increasing of frustration. Meanwhile, most beginning teachers may not experience sufficient profecisonnal or assistance of development. Accordingly, the first three years serving in the school should not only be the most critical period for future development, but also the key for being a mentor teacher, investagting the needs of guidance and accessing induction program content of the beginning teacher therefore become an important issue. To this end, the present study distributed questionnaires for the beginning teachers who serve within three years from 293 high schools, representing 450 questionnaires in total with 93.3% recover rate of vallid questionnaires. Furthermore, authority interviews with 4 experts were also used to explore the induction program content. Conclusions derived from the present study are as following: 1.The beginning teachers do have needs of guidance, particulary more solicitours for pre-service workshop and profeccenal development. 2.Teachers with administrative position relatively need more assistance of guidance. 3.The beginning teachers who serve in private schools require more needs of induction guidance and profeccional deveolpment than those who serve in public schools. 4.The beginning teachers who serve in bigger class require more needs of induction guidance than those who serve in smaller ones. 5.It is apporpriate that the induction program shohld be instituted from checking in the school and lasted for two years. 6.To establish the regulations regards to induction program and to draw up the financial allowance. 7.To conduct the criterion of selection and training for induction. 8.The induction evaluation of the beginning teachers is needed.
Books on the topic "Inductive contact sensor"
1
Sosa, Ernest. Epistemology. Princeton University Press, 2018. http://dx.doi.org/10.23943/princeton/9780691183268.001.0001.
Full textAbstract:
In this concise book, one of the world's leading epistemologists provides a sophisticated, revisionist introduction to the problem of knowledge in Western philosophy. Modern and contemporary accounts of epistemology tend to focus on limited questions of knowledge and skepticism, such as how we can know the external world, other minds, the past through memory, the future through induction, or the world's depth and structure through inference. The book steps back for a better view of the more general issues posed by the ancient Greek Pyrrhonists. Returning to and illuminating this older, broader epistemological tradition, the book develops an original account of the subject, giving it substance not with Cartesian theology but with science and common sense. Descartes is a part of this ancient tradition, but he goes beyond it by considering not just whether knowledge is possible at all but also how we can properly attain it. In Cartesian epistemology, the book finds a virtue-theoretic account, one that is extended beyond the Cartesian context. Once epistemology is viewed in this light, many of its problems can be solved or fall away. The result is an important reevaluation of epistemology that will be essential reading for students and teachers.
Book chapters on the topic "Inductive contact sensor"
1
Fekik, Arezki, Hakim Denoun, Ahmad Taher Azar, Mustapha Zaouia, Nabil Benyahia, Mohamed Lamine Hamida, Nacereddine Benamrouche, and Sundarapandian Vaidyanathan. "Artificial Neural Network for PWM Rectifier Direct Power Control and DC Voltage Control." In Advances in System Dynamics and Control, 286–316. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-4077-9.ch010.
Full textAbstract:
In this chapter, a new technique has been proposed for reducing the harmonic content of a three-phase PWM rectifier connected to the networks with a unit power factor and also providing decoupled control of the active and reactive instantaneous power. This technique called direct power control (DPC) is based on artificial neural network (ANN) controller, without line voltage sensors. The control technique is based on well-known direct torque control (DTC) ideas for the induction motor, which is applied to eliminate the harmonic of the line current and compensate for the reactive power. The main idea of this control is based on active and reactive power control loops. The DC voltage capacitor is regulated by the ANN controller to keep it constant and also provides a stable active power exchange. The simulation results are very satisfactory in the terms of stability and total harmonic distortion (THD) of the line current and the unit power factor.
2
Fekik, Arezki, Hakim Denoun, Ahmad Taher Azar, Mustapha Zaouia, Nabil Benyahia, Mohamed Lamine Hamida, Nacereddine Benamrouche, and Sundarapandian Vaidyanathan. "Artificial Neural Network for PWM Rectifier Direct Power Control and DC Voltage Control." In Research Anthology on Artificial Neural Network Applications, 440–70. IGI Global, 2022. http://dx.doi.org/10.4018/978-1-6684-2408-7.ch021.
Full textAbstract:
In this chapter, a new technique has been proposed for reducing the harmonic content of a three-phase PWM rectifier connected to the networks with a unit power factor and also providing decoupled control of the active and reactive instantaneous power. This technique called direct power control (DPC) is based on artificial neural network (ANN) controller, without line voltage sensors. The control technique is based on well-known direct torque control (DTC) ideas for the induction motor, which is applied to eliminate the harmonic of the line current and compensate for the reactive power. The main idea of this control is based on active and reactive power control loops. The DC voltage capacitor is regulated by the ANN controller to keep it constant and also provides a stable active power exchange. The simulation results are very satisfactory in the terms of stability and total harmonic distortion (THD) of the line current and the unit power factor.
3
Basu, Anamika, Piyali Basak, and Anasua Sarkar. "Molecular-Docking-Based Anti-Allergic Drug Design." In Pharmaceutical Sciences, 711–26. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-1762-7.ch027.
Full textAbstract:
Allergens are foreign proteins that when come in contact of part(s) of human body stimulate the production of immunoglobulin types of proteins (antibodies). These allergens react with antibodies (immunoglobulin type E or IgE) produces allergic reactions, also known as immediate-type hypersensitivity reactions. As much as 20% of the general population may be affected by grass pollen as a major cause of allergic disease. EXPB class of proteins are known in the immunological literature as group-1 grass pollen allergens Molecular docking method can be used to identify the predicated the interaction of pollen allergen EXPB1 (Zea m 1), a beta-expansin and group-1 pollen allergen from maize with IgE molecules of human. The World Health Organization recognised allergen immunotherapy, as therapeutics for allergic diseases. RNA Interference (RNAi) is a biological process in which RNA molecules e.g. Small Interfering RNAs (siRNAs) inhibit gene expression, by cleavage and destruction of specific mRNA molecules. Use of Small Interfering RNA (siRNA) is a novel method in the induction of RNA Interference (RNAi), which is a potent method for therapeutics of allergic reactions. Due to various effects of STAT 6 proteins during hypersensitivity reactions caused by pollen allergens, mRNA of STAT6 gene is selected as target gene for allergy therapeutics via Post-Transcriptional Gene Silencing (PTGS). Using molecular docking study a specific sense siRNA is identified as anti allergic drug to treat allergic asthma during immediate type of hypersensitivity reaction, caused by Zea m 1 pollen allergen.
4
Basu, Anamika, Piyali Basak, and Anasua Sarkar. "Molecular-Docking-Based Anti-Allergic Drug Design." In Advances in Medical Technologies and Clinical Practice, 232–48. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-5225-0362-0.ch009.
Full textAbstract:
Allergens are foreign proteins that when come in contact of part(s) of human body stimulate the production of immunoglobulin types of proteins (antibodies). These allergens react with antibodies (immunoglobulin type E or IgE) produces allergic reactions, also known as immediate-type hypersensitivity reactions. As much as 20% of the general population may be affected by grass pollen as a major cause of allergic disease. EXPB class of proteins are known in the immunological literature as group-1 grass pollen allergens Molecular docking method can be used to identify the predicated the interaction of pollen allergen EXPB1 (Zea m 1), a beta-expansin and group-1 pollen allergen from maize with IgE molecules of human. The World Health Organization recognised allergen immunotherapy, as therapeutics for allergic diseases. RNA Interference (RNAi) is a biological process in which RNA molecules e.g. Small Interfering RNAs (siRNAs) inhibit gene expression, by cleavage and destruction of specific mRNA molecules. Use of Small Interfering RNA (siRNA) is a novel method in the induction of RNA Interference (RNAi), which is a potent method for therapeutics of allergic reactions. Due to various effects of STAT 6 proteins during hypersensitivity reactions caused by pollen allergens, mRNA of STAT6 gene is selected as target gene for allergy therapeutics via Post-Transcriptional Gene Silencing (PTGS). Using molecular docking study a specific sense siRNA is identified as anti allergic drug to treat allergic asthma during immediate type of hypersensitivity reaction, caused by Zea m 1 pollen allergen.
5
Peckhaus, Volker. "The Heuristic Function of the Axiomatic Method." In The Paideia Archive: Twentieth World Congress of Philosophy, 263–65. Philosophy Documentation Center, 1998. http://dx.doi.org/10.5840/wcp20-paideia199837678.
Full textAbstract:
This lecture will deal with the heuristic power of the deductive method and its contributions to the scientific task of finding new knowledge. I will argue for a new reading of the term 'deductive method.' It will be presented as an architectural scheme for the reconstruction of the processes of gaining reliable scientific knowledge. This scheme combines the activities of doing science ('context of discovery') with the activities of presenting scientific results ('context of justification'). It combines the heuristic and the deductive side of science. The heuristic side is represented, e.g., by the creative methods to find the 'best' hypotheses (abduction), to design experimental systems for empirical research in order to formulate general laws (induction), or to create axiomatic systems. The other side consists of the production of deductive knowledge. This combination leads to a clear hierarchy: the heuristic side provides the basic presuppositions from which the deductive side takes off. The former is used to make deductions possible. The deductive method can be presented as an analysis-synthesis scheme as it can be found, e.g., in the tradition of Kant, Jakob Friedrich Fries, and Leonard Nelson. Nelson's critical philosophy can be seen as a key for understanding the philosophy behind David Hilbert's early axiomatic method. This axiomatic method is usually restricted to a non-philosophical approach to pure mathematics ('formalism'). But Hilbert was not an exclusive formalist; he proposed a mathesis universalis in the Cartesian-Leibnizian sense according to which mathematics is the syntactical tool for a general philosophy of science, applicable to all scientific disciplines. In this function, mathematics takes its problems from the sciences. Hilbert did not deny that mathematics should play a role in explaining the world. The analysis-synthesis scheme helps to provide a consistent interpretation of these two sides of Hilbert's attitude towards his working field.
6
Kumar Sharma, Ajay, Priyanka Shaw, Aman Kalonia, M. H. Yashavarddhan, Pankaj Chaudhary, Arpana Vibhuti, and Sandeep Kumar Shukla. "Recent Perspectives in Radiation-Mediated DNA Damage and Repair: Role of NHEJ and Alternative Pathways." In DNA - Damages and Repair Mechanisms. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96374.
Full textAbstract:
Radiation is one of the causative agents for the induction of DNA damage in biological systems. There is various possibility of radiation exposure that might be natural, man-made, intentional, or non-intentional. Published literature indicates that radiation mediated cell death is primarily due to DNA damage that could be a single-strand break, double-strand breaks, base modification, DNA protein cross-links. The double-strand breaks are lethal damage due to the breakage of both strands of DNA. Mammalian cells are equipped with strong DNA repair pathways that cover all types of DNA damage. One of the predominant pathways that operate DNA repair is a non-homologous end-joining pathway (NHEJ) that has various integrated molecules that sense, detect, mediate, and repair the double-strand breaks. Even after a well-coordinated mechanism, there is a strong possibility of mutation due to the flexible nature in joining the DNA strands. There are alternatives to NHEJ pathways that can repair DNA damage. These pathways are alternative NHEJ pathways and single-strand annealing pathways that also displayed a role in DNA repair. These pathways are not studied extensively, and many reports are showing the relevance of these pathways in human diseases. The chapter will very briefly cover the radiation, DNA repair, and Alternative repair pathways in the mammalian system. The chapter will help the readers to understand the basic and applied knowledge of radiation mediated DNA damage and its repair in the context of extensively studied NHEJ pathways and unexplored alternative NHEJ pathways.
7
CHEBABHI, Ali. "Foreword." In Improved Indirect Power Control (IDPC) of Wind Energy Conversion Systems (WECS), i. BENTHAM SCIENCE PUBLISHERS, 2019. http://dx.doi.org/10.2174/9789811412677119010001.
Full textAbstract:
During the past decade, the installed wind power capacity in the world has been increasing more than 30%. Wind energy conversion system (WECSs) based on the doubly-fed induction generator (DFIG) dominated the wind power generations due to the outstanding advantages, including small converters rating around 30% of the generator rating, lower converter cost. Due to the non-linearity of wind system, the DFIG power control presents a big challenge especially under wind-speed variation and parameter’s sensibility. To overcome these major problems; an improved IDPC (Indirect Power Control); based on PID “Proportional-Integral-Derivative” controller, was proposed instead the conventional one (based on PI), in order to enhance the wind-system performances in terms; power error, tracking power and overshoot. Unfortunately using robustness tests (based on severe DFIG’s parameters changement); the wind-system offers non-satisfactory simulation results which were illustrated by the very bad power tracking and very big overshoot (> 50%). In this context; adaptive, robust & intelligent controllers were proposed to control direct & quadrature currents (Ird & Irq) under MPPT (Maximum Power Point Tracking) strategy to main the unity power factor (PF≈1) by keeping the reactive power at zero level. In this case, the new IDPC based on intelligent controllers offered an excellent wind-system performance especially using robustness tests, which offered a big improvement especially using Type-1 Fuzzy Logic Controller (T1-FLC), Type-2 Fuzzy Logic Control (T2-FLC; is the New class of fuzzy logic) & Neuro-Fuzzy Logic (NFC). In this sense, I think that this edited book is an important contribution to help students already in mastery of the basis of power electronic circuits and control systems theory to achieve these pedagogical goals. The proposed book describes with easy manner the modeling & control of Wind-turbine DFIG in order to control the stator powers using different topologies of robust, adaptive and intelligent controllers. The book present numerous intelligent control techniques that help in the control design of the DFIG wind-system (WT). The textbook “Improved Indirect Power Control (IDPC) of Wind Energy Conversion Systems (WECS)” proposes a collection of concepts, organized in a synergic manner such that to ease comprehension of the WT control design. The book’s contribution goes towards completing the already existing literature by offering a useful integration of control techniques, worthy to be read, understood and employed in the various WT applications. Please enjoy reading this book.
8
Liberati, Diego. "Machine Learning Through Data Mining." In Machine Learning, 23–31. IGI Global, 2012. http://dx.doi.org/10.4018/978-1-60960-818-7.ch103.
Full textAbstract:
In dealing with information it often turns out that one has to face a huge amount of data, often not completely homogeneous and often without an immediate grasp of an underlying simple structure. Many records, each one instantiating many variables, are usually collected with the help of various technologies. Given the opportunity to have so many data not easy to correlate by the human reader, but probably hiding interesting properties, one of the typical goals one has in mind is to classify subjects on the basis of a hopefully reduced meaningful subset of the measured variables. The complexity of the problem makes it worthwhile to resort to automatic classification procedures. Then, the question arises of reconstructing a synthetic mathematical model, capturing the most important relations between variables, in order to both discriminate classes of subjects and possibly also infer rules of behaviours that could help identify their habits. Such interrelated aspects will be the focus of the present contribution. The data mining procedures that will be introduced in order to infer properties hidden in the data are in fact so powerful that care should be put in their capability to unveil regularities that the owner of the data would not want to let the processing tool discover, like for instance, in some cases the customer habits investigated via the usual smart card used in commerce with the apparent reward of discounting. Four main general purpose approaches will be briefly discussed in the present article, underlying the cost effectiveness of each one. In order to reduce the dimensionality of the problem, simplifying both the computation and the subsequent understanding of the solution, the critical issues of selecting the most salient variables must be addressed. This step may already be sensitive, pointing to the very core of the information to look at. A very simple approach is to resort to cascading a divisive partitioning of data orthogonal to the principal directions (PDDP) (Boley, 1998) already proven to be successful in the context of analyzing micro-arrays data (Garatti, Bittanti, Liberati, & Maffezzoli, 2007). A more sophisticated possible approach is to resort to a rule induction method, like the one described in Muselli and Liberati (2000). Such a strategy also offers the advantage to extract underlying rules, implying conjunctions or disjunctions between the identified salient variables. Thus, a first idea of their even nonlinear relations is provided as a first step to design a representative model, whose variables will be the selected ones. Such an approach has been shown (Muselli & Liberati, 2002) to be not less powerful over several benchmarks than the popular decision tree developed by Quinlan (1994). An alternative in this sense can be represented by Adaptive Bayesian networks (Yarmus, 2003) whose advantage is also to be available on a commercial wide spread data base tool like Oracle. Dynamics may matter. A possible approach to blindly build a simple linear approximating model is thus to resort to piece-wise affine (PWA) identification (Ferrari-Trecate, Muselli, Liberati, & Morari, 2003). The joint use of (some of) such four approaches briefly described in this article, starting from data without known priors about their relationships, will allow to reduce dimensionality without significant loss in information, then to infer logical relationships, and, finally, to identify a simple input-output model of the involved process that also could be used for controlling purposes, even those potentially sensitive to ethical and security issues.
Conference papers on the topic "Inductive contact sensor"
1
Arshad, Atika, SitiNorkhairani Bt AbdWahab, NurulSyuhadah Bt IzwarArfani, Sheroz Khan, Ahm Zahirul Alam, Othman O. Khalifa, Teddy S. Gunawan, et al. "Characterization of materials using non-contact inductive sensor applications." In 2011 4th International Conference on Mechatronics (ICOM). IEEE, 2011. http://dx.doi.org/10.1109/icom.2011.5937151.
Full text
2
Ballas, Rudiger G., and Dierk Schoen. "A non-contact inductive sensor for high-accuracy tip deflection measurements of piezoceramic bending actuators." In 2017 International Conference on Research and Education in Mechatronics (REM). IEEE, 2017. http://dx.doi.org/10.1109/rem.2017.8075255.
Full text
3
Djuric, Snezana, Laszlo Nagy, and Mirjana Damnjanovic. "Determination of the acting point of contact force in a foot of humanoid robot using inductive displacement sensor." In 2009 7th International Symposium on Intelligent Systems and Informatics (SISY). IEEE, 2009. http://dx.doi.org/10.1109/sisy.2009.5291120.
Full text
4
Nhung Dinh, Thi Hong, Mengze Wang, Stephane Serfaty, Dominique Placko, and Pierre-Yves Joubert. "Non Contact Estimation of the Dielectric Properties of Organic Material Using an Inductive RF Sensor and a Multifrequency Approach." In 2017 Cosmetic Measurements And Testing (COSMETIC). IEEE, 2017. http://dx.doi.org/10.1109/comet.2017.8521467.
Full text
5
Thomason, Jesse, and Raymond J. Mooney. "Multi-Modal Word Synset Induction." In Twenty-Sixth International Joint Conference on Artificial Intelligence. California: International Joint Conferences on Artificial Intelligence Organization, 2017. http://dx.doi.org/10.24963/ijcai.2017/575.
Full textAbstract:
A word in natural language can be polysemous, having multiple meanings, as well as synonymous, meaning the same thing as other words. Word sense induction attempts to find the senses of polysemous words. Synonymy detection attempts to find when two words are interchangeable. We combine these tasks, first inducing word senses and then detecting similar senses to form word-sense synonym sets (synsets) in an unsupervised fashion. Given pairs of images and text with noun phrase labels, we perform synset induction to produce collections of underlying concepts described by one or more noun phrases. We find that considering multi-modal features from both visual and textual context yields better induced synsets than using either context alone. Human evaluations show that our unsupervised, multi-modally induced synsets are comparable in quality to annotation-assisted ImageNet synsets, achieving about 84% of ImageNet synsets' approval.
6
Yoo, JinHyeong. "A Performance Prediction for Fe-Ga Magnetostrictive Strain Sensor." In ASME 2016 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/smasis2016-9140.
Full textAbstract:
This study will present a proof-of-concept non-contact strain sensor, utilizing a prototype magnetostrictive (Fe-Ga alloy, Galfenol) strip on a steel plate; coupled mechanical-magnetostrictive equations will be used to evaluate sensor performance prediction. In contrast with typical piezo-ceramic materials, Galfenol is ductile and has an excellent ability to withstand mechanical shock. Galfenol also changes its permeability in response to applied stress. This stress-based permeability change is not time dependent and can measure static loads. The variation of magnetic induction with stress depends strongly on bias magnetic field. Typically, the performance of Galfenol is measured in a compressional load region because it has higher response there. However, in this study, we are aiming to develop a sensor for tensile stress measurement. To achieve a compression load in the sensing element, a Galfenol strip is aligned perpendicular to a tension bar, so that tension in the bar creates compression in the strip, via the Poisson effect. The experimental setup in this study consists of a polycrystalline Galfenol strip bonded in the horizontal direction of a steel dog-bone shaped tension specimen. Two permanent magnets are attached at both ends of the Galfenol strip to provide a magnetic bias field through the strip. The magnetic flux through the Galfenol strip is measured with a non-contact Hall sensor during the tensile load test. The design reported here aims at low frequency applications, such as static and dynamic tension monitoring.
7
O'Toole, M. D., L. A. Marsh, J. L. Davidson, Y. M. Tan, D. W. Armitage, and A. J. Peyton. "Rapid non-contact relative permittivity measurement of fruits and vegetables using magnetic induction spectroscopy." In 2015 IEEE Sensors Applications Symposium (SAS). IEEE, 2015. http://dx.doi.org/10.1109/sas.2015.7133624.
Full text
8
Masilamany, Gayathri, Pierre-Yves Joubert, Stephane Serfaty, Bastien Roucaries, and Pascal Griesmar. "Evaluation of a high sensitivity radiofrequency inductive probe for the non-contact sensing of dielectric properties of organic media." In 2015 IEEE Sensors Applications Symposium (SAS). IEEE, 2015. http://dx.doi.org/10.1109/sas.2015.7133632.
Full text
9
Foong, Shaohui, Karupppasamy Subburaj, and Kristin L. Wood. "An Inductive, Design-Centric Approach to Control Engineering Education With a Competitive Atmosphere." In ASME 2017 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/dscc2017-5157.
Full textAbstract:
Control engineering is a cornerstone of most undergraduate engineering programs in colleges and universities around the world. The analysis and synthesis of automatic controllers, in particular, the PID controller, is a central focus of these courses and modules. However, due to its highly abstract nature, students usually find the content challenging and difficult to comprehend. This is aggravated by the employment of traditional lecture/recitation deductive teaching formats as means of delivery of the content. Here, an inductive-based week long design activity strategically held in the middle of the semester was conceived to introduce and motivate the notion of feedback control. During the course of the week, students in teams design, analyze and synthesize automatic controllers to enable a standardized differential wheeled robotic platform to traverse a line circuit autonomously. The strategy to achieve this capability is intentionally left to be open-ended, and students have the design freedom to select and position sensors needed to sense the track, as well as implement and troubleshoot the programming required to enable autonomous control. The activity culminates with a pulsating head-to-head single elimination tournament to decide the overall champion.
10
Botto, D., M. Lavella, and M. M. Gola. "Measurement of Contact Parameters of Flat on Flat Contact Surfaces at High Temperature." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-69677.
Full textAbstract:
In aircraft engines the blade resonant vibration amplitude is normally reduced by increasing the structural damping by using, for example, tip shrouds. These devices dissipate the energy generated at the contact surfaces between the relative motion and the friction force. Contact parameters, principally the friction coefficient and contact stiffness, are required to characterize the dynamics of shrouded blade system. Moreover, if at these contact surfaces severe wear occurs, a loss of interference takes place and the energy dissipated by the shroud decreases. Consequently the blade vibration amplitude increases and a catastrophic blade failure could take place. In this work a test rig for the contact parameter measurements and micro wear characterization of flat-on-flat contact surfaces has been developed. The test rig works at high temperatures of up to 1000 °C, by means of induction heating. One of the specimens was attached to the rig frame, basically an inertial mass and four springs, and subsequently excited by an electromagnetic shaker. The second specimen was allowed to approach the first specimen and to rotate in such a way than the geometric contact between the two surfaces occurred at three points. In this way a real “flat to flat” contact was obtained. The two surfaces were kept in contact by means of a constant normal load. The tangential contact force was measured by a force sensor while the relative displacements between the contact surfaces were measured by two laser vibrometers. The relative displacement was kept under control by acting on the shaker force. Tangential force and relative displacement were used to describe the hysteresis loop and, consequently, to obtain the friction coefficient and contact stiffness during the wear process. The temperature is feedback controlled by using two thermocouples placed within the specimens near the contact surfaces. The expected results are the contact parameters and the wear behaviour of real flat-on-flat contact surfaces. The aim of this work is to describe the design principle of the test rig and present the initial measurements.