Relevant bibliographies by topics / Transducer gain

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Transducer gain'

Author: Grafiati
Published: 4 June 2021
Last updated: 14 February 2022

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Journal articles on the topic "Transducer gain"

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Fenner, Thomas C. "High gain acoustic transducer." Journal of the Acoustical Society of America 100, no. 3 (1996): 1281. http://dx.doi.org/10.1121/1.416042.

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Huang, Ke, and Mani Hossein-Zadeh. "Acousto-Optical Transducer With Optomechanical Gain." IEEE Photonics Technology Letters 30, no. 22 (2018): 1960–63. http://dx.doi.org/10.1109/lpt.2018.2873108.

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Engelke, Diana, Bernd Oehme, and Jens Strackeljan. "A Novel Drive Option for Piezoelectric Ultrasonic Transducers." Modelling and Simulation in Engineering 2011 (2011): 1–6. http://dx.doi.org/10.1155/2011/910876.

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This paper concentrates on ultrasonic transducers, which are driven by piezoelectric ceramic rings that are arranged in a stack. A novel drive option, where the stack contains a new type of divided piezoelectric rings, is analyzed using the finite element method, prototyped, and tested. To gain a better sense of the vibration behavior, the studies focus initially on one ring and subsequently on the different possibilities to assemble the transducer. The investigations point out that natural bending frequencies can be excited at the transducer. Thus, multiple vibration directions of the tip can
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Liu, Ying Xiang, Jun Kao Liu, Wei Shan Chen, and Sheng Jun Shi. "Working Principle and Design of a Cylindrical Standing Wave Ultrasonic Motor Using Cantilever Type Bending Transducer." Key Engineering Materials 434-435 (March 2010): 771–74. http://dx.doi.org/10.4028/www.scientific.net/kem.434-435.771.

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A cylindrical standing wave ultrasonic motor using cantilever type bending transducer is proposed in this paper. There are four cantilevers outside the cylinder, and four PZT ceramics are set on each end surface of cantilevers. The bending mode of cylinder is excited by the bending vibration of transducers. Thus, a linear simple harmonic motion is achieved at the particle on the tooth. The working principle of proposed motor is analyzed. The cylinder and transducer are designed with FEM. The bending vibration modals of transducer and cylinder are degenerated. The transient analysis is develope
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Liu, Ying Xiang, Jun Kao Liu, Wei Shan Chen, and Sheng Jun Shi. "Design and Analysis of a Cylindrical Traveling Wave Ultrasonic Motor Using Orthogonal Longitudinal Composite Transducer." Key Engineering Materials 419-420 (October 2009): 261–64. http://dx.doi.org/10.4028/www.scientific.net/kem.419-420.261.

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A cylindrical type traveling wave ultrasonic motor using orthogonal longitudinal composite transducer is proposed. The composite transducer contains two longitudinal transducers, which are located orthogonal to each other. Each longitudinal transducer includes one exponential horn located on leading end, and the horns insect with each other at tip ends. The composite transducer is attached to the cylinder on its outer surface to excite two degenerate flexural vibration modes spatially and temporally orthogonal to each other in the cylinder. Thus, a flexural traveling wave in the cylinder could
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Liu, Jun Kao, Wei Shan Chen, and Xiao Yu Lv. "Study on Ultrasonic Micromateriel Transmission System." Applied Mechanics and Materials 55-57 (May 2011): 2109–12. http://dx.doi.org/10.4028/www.scientific.net/amm.55-57.2109.

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A new type ultrasonic materiel transmission system is proposed in this study. In this new design, bending vibration traveling wave is generated in an elastic pipe by using two uniform sandwich type longitudinal vibration transducers. Thus, elliptical trajectory motions can be formed at particles on the pipe wall, which can drive the materiel by frictional force. The adopting of sandwich transducer in this device can gain large vibration amplitude and improve the electromechanical coupling efficiency. The structure and working principle of the proposed design are introduced. The transducer and
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Ming, Li, Meiling Wang, and Ke Ning. "Frequency-Dependent Streaming Potential in a Porous Transducer-Based Angular Accelerometer." Sensors 19, no. 8 (2019): 1780. http://dx.doi.org/10.3390/s19081780.

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This paper presents a transient model of streaming potential generated when fluid flows through a porous transducer, which is sintered by glass microspheres and embedded in the circular tube of a liquid circular angular accelerometer (LCAA). The streaming potential coupling coefficient (SPC) is used to characterize this proposed transient model by combining a capillary bundle model of a porous transducer with a modified Packard’s model. The modified Packard’s model is developed with the consideration of surface conductance. The frequency-dependent streaming potential is investigated to analyze
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Pan, Hsuan-Yu, Hsing-Yuan Tu, Shey-Shi Lu, and C. C. Meng. "A novel interpretation of transducer power gain by optical analogy." Microwave and Optical Technology Letters 31, no. 2 (2001): 124–26. http://dx.doi.org/10.1002/mop.1376.

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Basham, Eric, and David Parent. "Design Optimization of Transistors Used for Neural Recording." Active and Passive Electronic Components 2012 (2012): 1–10. http://dx.doi.org/10.1155/2012/472306.

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Neurons cultured directly over open-gate field-effect transistors result in a hybrid device, the neuron-FET. Neuron-FET amplifier circuits reported in the literature employ the neuron-FET transducer as a current-mode device in conjunction with a transimpedance amplifier. In this configuration, the transducer does not provide any signal gain, and characterization of the transducer out of the amplification circuit is required. Furthermore, the circuit requires a complex biasing scheme that must be retuned to compensate for drift. Here we present an alternative strategy based on thegm/Iddesign ap
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Dominikowski, Bartosz. "Measuring Current in a Power Converter Using Fuzzy Automatic Gain Control." Applied Sciences 11, no. 13 (2021): 5793. http://dx.doi.org/10.3390/app11135793.

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The accuracy of current measurements can be increased by appropriate amplification of the signal to within the measurement range. Accurate current measurement is important for energy monitoring and in power converter control systems. Resistance and inductive current transducers are used to measure the major current in AC/DC power converters. The output value of the current transducer depends on the load motor, and changes across the whole measurement range. Modern current measurement circuits are equipped with operational amplifiers with constant or programmable gain. These circuits are not ab
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Dissertations / Theses on the topic "Transducer gain"

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Mainou, Gomez José Francisco. "Amplifier for optimal reflection Coefficient of ultrasound transducer : A study of op amp based circuits for ultrasound transducers, targeted for low reflection Coefficient, high gain, and low noise." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elektronikk og telekommunikasjon, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18347.

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Reverberation is defined as equally-spaced, bright linear echoes resulting from reflection from specular-type interfaces. They are provoked by the acoustic Impedance change between the tissue and transducer front surface. B. Angelsen developed a mathematical approach to correct this ultrasound artifact by coupling the ultrasound transducer with an ideal electrical load in order to obtain zero reflection coefficients on the transducer from face [1]. However, when analyzing Impedance spectroscopy this approach cannot be achieved by using passive electronics in most simulated cases. Active impeda
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Potěšil, Dušan. "Nízkošumový zesilovač pro pásmo S." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217670.

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This work deals with design, simulation and realisation of a receiving systém of an S-band front end for satellite communication. The first part of the project is designed the low noise amplifier (LNA) with high associated gain. The basic point of the design is choice of the active device. In the present time are available the ultra low noise transistors based on the GaAs with high mobility electron. The two-stage LNA has been designed with Agilent ATF-55143. It is pseudomorphic HEMTs ,which work in an enhancement mode.These transistor do not require a negative bias voltage and have extremely
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Magnissalis, Evangelos A. "Studies of prosthetic loading by means of pylon transducers." Thesis, University of Strathclyde, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262059.

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Guiral, Pierrick. "Développement de nouveaux systèmes d’assurance qualité à base de sondes dosimétriques GaN pour la curiethérapie." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSE1127/document.

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Ce travail de thèse a pour but de développer et de caractériser de nouveaux systèmes d'assurance qualité en curiethérapie, à base de sondes dosimétriques en Nitrure de Gallium (GaN). L'étude comprend d'une part la caractérisation et la simulation du transducteur GaN et de la sonde dosimétrique, et d'autre part la mise en œuvre et les tests de 2 systèmes d'assurance qualité.Les propriétés de radioluminescence du transducteur GaN ont été étudiées afin d'optimiser le signal dosimétrique des sondes. La sonde dosimétrique encapsulant un petit volume de cristal GaN a ensuite été caractérisée en vue
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Kaštánek, Martin. "Vstupní díl UHF přijímače s velmi nízkou spotřebou." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217183.

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The purpose of this work was to make a proposal for input parts of receiver for band 430 to 440 MHz. A model of chosen semiconductor triode BFP540 was created in simulation software. Possibilities how to decrease consumption of this semiconductor triode, keeping the profit, were investigated through the simulation.In compromise consumption, keeping the profit of the amplifier - an optimal operating point for this semiconductor triode UCE = 1,2 V and IC = 2 mA was found. It was tested through the testing wiring with noise microstrips conformity. Ascertained knowledge was used for construction o
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Akhlaghi, Florin. "An in-shoe biaxial shear force transducer utilising piezoelectric copolymer film and the clinical assessment of in-shoe forces." Thesis, University of Kent, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.259679.

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El, kacimi Amine. "Capteurs piézoélectriques souples à base de microfils de GaN en structure capacitive." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAT073/document.

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Les études et recherches portant sur les nanomatériaux tels que les nanofils, nanoparticules ou les nano-fibres ont connu un progrès significatif. Le développement de ces structures fut soutenu par les avancées réalisées dans le domaine des technologies de micro fabrication qui permettent de nos jours, l’intégration des nanostructures sur les puces électroniques par le biais des procédés CMOS conventionnels. Ces travaux de thèse portent sur l’étude et le développement de capteurs piézoélectriques souples à base de nanofils de Nitrure de Gallium (GaN) assemblés selon deux architectures. Ces deu
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Book chapters on the topic "Transducer gain"

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Kandaswamy, K. V. "High Gain Super-Lift Converters for Multi-node Connected Low-Output Transducers." In Advances in Automation, Signal Processing, Instrumentation, and Control. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-8221-9_194.

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Steinhoff, Georg, Barbara Baur, Hans-Georg von Ribbeck, et al. "AlGaN/GaN Electrolyte-Gate Field-Effect Transistors as Transducers for Bioelectronic Devices." In Advances in Solid State Physics. Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11423256_29.

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"Appendix A Multistage Transducer Gain." In Microwave Amplifier and Active Circuit Design Using the Real Frequency Technique. John Wiley & Sons, Inc, 2016. http://dx.doi.org/10.1002/9781119073093.app1.

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Brock, Fred V., and Scott J. Richardson. "Sampling and Analog-to-Digital Conversion." In Meteorological Measurement Systems. Oxford University Press, 2001. http://dx.doi.org/10.1093/oso/9780195134513.003.0015.

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Along the signal path from the atmosphere, through the sensors and the data logger to the final archive, the signal quality may be irreversibly comprised. These faults include aliasing caused by poor sampling practice and quantization in an analog to- digital converter. Aliasing and quantization will be defined in this chapter. Drift in some of the system parameters, such as temperature sensitivity, is generally preventable but is not always reversible. Sampling of a signal occurs in the time domain and, frequently, in the space domain with one, two, or three dimensions. In the time domain, the time interval between successive points is called the sampling interval and the data logger controls this interval. When two or more sensors are distributed, vertically, along a mast then the system is sampling both in the time domain and in the space domain. When multiple measurements are arrayed along the surface of the earth, the sampling is occurring in time and in two or three space dimensions. Most meteorological systems are undersampled both in time and space. Space undersampling is an economic necessity. The consequence of undersampling is that frequencies above a certain limit, called the Nyquist frequency, will appear at lower frequencies and this is an irreversible effect. Quantization occurs when the signal is converted from analog to digital in the analog-to-digital converter. Since the range of the converter is expressed in a finite number of digital states, signal amplitudes smaller than this quantity will be lost. This is another irreversible effect. These are not the only irreversible effects. For example, drift is caused by physical changes in a sensor or other component of the measurement system. Drift may have a causal component, such as undocumented temperature sensitivity, and a random component such as wearing of an anemometer bearing. The former is theoretically preventable and reversible, whereas the latter is irreversible. Each element of the system may include some signal averaging, and each element may add bias and gain. As noted in earlier chapters, a sensor is a transducer, a device that changes energy from one form to another.
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"Ultrasound." In Echocardiography, edited by Paul Leeson, Christiana Monteiro, Daniel Augustine, et al. Oxford University Press, 2020. http://dx.doi.org/10.1093/med/9780198804161.003.0001.

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After a brief introduction to echocardiography, sound waves, and ultrasound, this chapter covers the following topics: the behaviour of ultrasound in tissue; reflection, attenuation, and depth compensation; reverberation artefacts; transthoracic, transoesophageal, and other transducers; echocardiography modes; transmit power; gain; grey scale and compression; image resolution; fundamental and second harmonic imaging; Doppler echocardiography; spectral trace analysis; continuous wave and pulsed wave Doppler; colour flow mapping; tissue Doppler imaging; second harmonic Doppler for contrast imaging; power Doppler (amplitude) imaging; 3D echocardiography, artefacts, image display, and image rendering; speckle tracking echocardiography; basic fluid dynamics; and the bioeffects of ultrasound.
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Koch, Christof. "The Membrane Equation." In Biophysics of Computation. Oxford University Press, 1998. http://dx.doi.org/10.1093/oso/9780195104912.003.0007.

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Any physical or biophysical mechanism instantiating an information processing system that needs to survive in the real world must obey several constraints: (1) it must operate at high speeds, (2) it must have a rich repertoire of computational primitives, with the ability to implement a variety of linear and nonlinear, high-gain, operations, and (3) it must interface with the physical world—in the sense of being able to represent sensory input patterns accurately and translate the result of the computations into action, that is motor output (Keyes, 1985). The membrane potential is the one physical variable within the nervous system that fulfills these three requirements: it can vary rapidly over large distances (e.g., an action potential changes the potential by 100 mV within 1 msec, propagating up to 1 cm or more down an axon within that time), and the membrane potential controls a vast number of nonlinear gates—ionic channels—that provide a very rich substrate for implementing nonlinear operations. These channels transduce visual, tactile, auditory, and olfactory stimuli into thanges of the membrane potential, and such voltage changes back into the release of neurotransmitters or the contraction of muscles. This is not to deny that ionic fluxes, or chemical interactions of various substances with each other, are not crucial to the working of the brain. They are, and we will study some of these mechanisms in Chap. 11. Yet the membrane potential is the incisive variable that serves as primary vehicle for the neuronal operations underlying rapid computations—at the fraction of a second time scale—in the brain. We will introduce the reader in a very gentle manner to the electrical properties of nerve cells by starting off with the very simplest of all neuronal models, consisting of nothing more than a resistance and a capacitance (a so-called RC circuit). Yet endowed with synaptic input, this model can already implement a critical nonlinear operation, divisive normalization and gain control. As a starting point, we choose a so-called point representation of a neuron. Here, the spatial dependency of the neuron is reduced to a single point or compartment.
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Conference papers on the topic "Transducer gain"

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Gray, Blake, Mabel Ponton, Almudena Suarez, and J. Stevenson Kenney. "Analytical modeling of transducer gain and gain compression in degenerate parametric amplifiers." In 2012 IEEE Radio and Wireless Symposium (RWS). IEEE, 2012. http://dx.doi.org/10.1109/rws.2012.6175352.

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Monti, Giuseppina, Franco Mastri, Mauro Mongiardo, Laura Corchia, and Luciano Tarricone. "Transducer gain maximization for a resonant inductive WPT link using relay resonators." In 2018 IEEE MTT-S International Wireless Symposium (IWS). IEEE, 2018. http://dx.doi.org/10.1109/ieee-iws.2018.8400875.

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Bokermann, Kai, and Jürgen Maas. "Investigation of the Adhesion Properties of Laminated Multilayer-Actuators Based on DEAP Material." In ASME 2015 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/smasis2015-8985.

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Transducers based on dielectric electroactive polymers (DEAP) gained a lot of attention within the last years. By applying an electric field, the elastomer material, coated with compliant electrodes on its opposing surfaces, deforms. Due to this electromechanical coupling DEAP transducers are predestined for generator and actuator applications. However, to increase the absolute energy gain or the actuation, multilayer DEAP transducers are used. To withstand tensile forces a reliable adhesion between the single layers of the transducer is mandatory. If the transducer is made from high-quality p
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Suizu, Masafumi, Kosuke Katayama, Mizuki Motoyoshi, Kyoya Takano, and Minoru Fujishima. "Maximizing transducer gain per power dissipation in 100 GHz CMOS six-stage amplifier." In 2012 IEEE International Meeting for Future of Electron Devices, Kansai (IMFEDK). IEEE, 2012. http://dx.doi.org/10.1109/imfedk.2012.6218631.

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Wang, Hua, Constantine Sideris, and Ali Hajimiri. "A frequency-shift based CMOS magnetic biosensor with spatially uniform sensor transducer gain." In 2010 IEEE Custom Integrated Circuits Conference -CICC 2010. IEEE, 2010. http://dx.doi.org/10.1109/cicc.2010.5617603.

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Vanaverbeke, Frederik, Lei Zhang, Damon Holmes, Mauro Marchetti, and Kevin Kim. "De-mystifying AM-PM characteristics through the definition of the complex Transducer Gain ĜT." In 2020 94th ARFTG Microwave Measurement Symposium (ARFTG). IEEE, 2020. http://dx.doi.org/10.1109/arftg47584.2020.9071718.

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Kim, Jinwook, Huaiyu Wu, and Xiaoning Jiang. "Miniaturized Focused Ultrasound Transducers for Intravascular Therapies." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-72426.

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Intravascular ultrasound approach has shown its advantages for thrombectomy. Catheter-directed ultrasound techniques have realized safe therapies by suppressing mechanical contact and penetration of excessive ultrasound energy through the tissue. One limitation of this approach is the lack of the sufficient ultrasound energy for fast thrombectomy because typical catheter-mounted transducers have high-frequency and low acoustic power. In this work, we aim to resolve this problem by designing miniaturized focused ultrasound transducers for improved therapeutic efficacy, which can generate low-fr
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Yao, J., Z. Yu, M. A. P. Pertijs, et al. "Design of a low power time-gain-compensation amplifier for a 2D piezoelectric ultrasound transducer." In 2010 IEEE Ultrasonics Symposium (IUS). IEEE, 2010. http://dx.doi.org/10.1109/ultsym.2010.5935775.

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Volokhin, A. S., and G. N. Devyatkov. "Parametric synthesis of matching circuits and matching circuits with frequency-dependent transducer gain using genetic-algorithm." In 2008 9th International Scientific-Technical Conference on Actual Problems of Electronic Instrument Engineering (APEIE). IEEE, 2008. http://dx.doi.org/10.1109/apeie.2008.4897151.

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Yu, John J., Donald E. Bently, Paul Goldman, Kenwood P. Dayton, and Brandon G. Van Slyke. "Rolling Element Bearing Defect Detection and Diagnostics Using Displacement Transducers." In ASME Turbo Expo 2001: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/2001-gt-0028.

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This paper introduces the methodology of rolling element bearing defect detection using high-gain displacement transducers. The nature of defect influence on the outer race deflection in the vicinity of the transducer tip in time base has been established. Inner race, outer race, and rolling element (ball/roller) defects, which often occur sequentially, can be clearly identified according to spike signals on the time-varying outer race deflection curve along with known bearing frequencies. The developed techniques are fully corroborated by experimental data. Spike-to-deflection amplitude ratio
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