high-frequency piezoelectric transducer
Design of high frequency ultrasonic transducers with flexure decoupling flanges for thermosonic bonding
... equivalent method were used to model and design transducers, however, the calculations were not so accurate because there are usually some assumptions [19]-[22]. The transducers designed using these analytical methods ...
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Experimental Characterization of A Piezoelectric Transducer Array Taking into Account Crosstalk Phenomenon
... fabricated piezoelectric transducer array is characterized experimentally by electrical and mechanical ...the transducer array's behavior and to facilitate the interpretation of the obtained results, ...
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The Design of Surface Acoustic Wave Receiving Circuit Based on Piezoelectric Transducer
... the frequency of bandwidth is 25 ...a high-impedance gain over −40 dB to 40 dB range linear in ...although frequency of bandwidth is lower than ...
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INFLUENCE OF PIEZOELECTRIC TRANSDUCER TO GLASS FIBER REINFORCED COMPOSITE STIFFNESS
... years piezoelectric materials are in- creasing their share in multiple fields of engineer- ing ...Very high stiffness of piezoelectric ceramic materials gives in result very small de- formations when ...
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Investigation of Cross-Coupling in Piezoelectric Transducer Arrays and Correction
... In literature research works devoted to the minimization of cross-coupling can be divided into three approaches. The first one investigates the contribution of the passive elements (filling material, matching layers, and ...
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HiFFUTs for high temperature ultrasound
... titanate piezoelectric ceramic, which experiences significantly reduced performance as temperature is ...flexural transducer, the HiFFUT, a high frequency flexural ultrasonic ...
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An Approach to Designing a Dual Frequency Piezoelectric Ultrasonic Transducer
... dual frequency piezoelectric ultrasonic transducer having longitudinal vibrations for high power ...nance frequency equations of the transducer in the half-wave and the all-wave ...
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Preliminary evaluation of optically-interrogated Rogowski coils: compliance with power system protection classes
... a piezoelectric transducer has been utilised to monitor passively the output of a commercially available Rogowski ...a high- resolution interrogation system based on a Mach-Zehnder interferometer has ...
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The design of a modular probe incorporating thick film sensors for detecting phase interfaces in oil well primary separator plant
... at high oil concentrations above 60%, but below this value, the probe indicates far higher conductance, and hence apparent conductivity, of the fluid ...at high oil concentrations, the water will form drops ...
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Modelling and Simulation of Piezoelectric Energy Harvester for Electronic Devices
... from piezoelectric transducer is estimated and checked the possibility of storage device to store the power that is generated from the ...different piezoelectric materials used and also with ...
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A Semantic Approach of ITS: Perspective on Road Safety
... low frequency of 33 KHz is ...the transducer. The transducer is a bi-directional transducer that converts the electrical energy to acoustic energy during transmission and back converts ...
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PubMedCentral-PMC5300895.pdf
... transmission frequency (1–3 MHz). Miniaturization of the lower frequency transducer can be achieved by utilizing the lateral excitation mode in developed ...[36–38]. Transducer arrays have ...
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Illustrated Dictionary of Electronics pdf
... air-core inductor A coil of wire wound around a hollow cylindrical form or in a loop, designed to introduce inductive reactance into a circuit or system. In practice, the maximum attainable in- ductance is approximately ...
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Additive manufacture of impedance matching layers for air coupled ultrasonic transducers
... A transducer with directly printed µSL matching layer ...the transducer prototype built with directly printed µSL matching layer produces consistent devices, with characteristic behavior similar to devices ...
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A Study of High Performance Pulse Analysis System for ASP based Applications
... the high frequency signals of obtained due to body ...cutoff frequency desired calculated by the following equation and has a gain Rf /R2 which almost equals to ...
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Technique for Generation of Unipolar Ultrasonic Pulses
... In the receive mode, the piezoelectric transducer generates a voltage signal that faithfully represents the unipolar stress pulse under open circuit no load conditions.. However, the fea[r] ...
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Embedded System for Real-Time Digital Processing of Medical Ultrasound Doppler Signals
... are high-pass fil- tered to eliminate the “clutter,” that is, the high-level low- frequency components due to still or slowly moving targets like tissues or vessel ...the frequency content of ...
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CMUT Crosstalk Reduction Using Crosslinked Silica Aerogel
... In recent years, different approaches have been studied to reduce cross coupling in CMUTs in immersion applications. In [5], a method has been proposed to operate the CMUTs in a pull-in mode that effectively increasing ...
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IMPLMENTATION OF ZOOM FFT IN ULTRASONIC BLOOD FLOW ANALYSIS
... a high frequency ultrasonic wave in the blood vessels through the ...receiver transducer has different frequency due to Doppler principal ...the frequency spectrum because of the ...
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A piezoelectric microvalve for compact high frequency high differential pressure micropumping systems
... Subsequent test runs at differential pressures in excess of resulted in unstable oscillatory motion of the valve cap structure, and eventually fracture of the valve membrane. The nature of the flow behavior (based on ...
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