high-frequency piezoelectric transducers
Design of high frequency ultrasonic transducers with flexure decoupling flanges for thermosonic bonding
... of high frequency ultrasonic transducers for microelectronic thermosonic ...The transducers are actuated by piezoelectric ceramics and decoupled with their connecting parts through ...
10
Design and analysis of two piezoelectric cymbal transducers with metal ring and add mass
... two piezoelectric transducers were designed to meet the strict underwater application backgrounds such as high pressure, corrosion resistance, and high ...Both transducers integrated ...
11
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 vibrational ...
11
High frequency measurement of ultrasound using flexural ultrasonic transducers
... measure high fre- quency ultrasound waves in ...ment, high frequency ultrasound is often desirable to reduce the interference of the system noise with a centre frequency of several dozens of ...
8
The influence of air pressure on the dynamics of flexural ultrasonic transducers
... the piezoelectric ceramic disc directly induces the vibration motion of the compliant ...relatively high inertia of the membrane and piezoelectric ceramic disc in order to produce a voltage signal in ...
16
20151124-PiezoelectricTransducer-Aakash.pdf
... a piezoelectric transducer is that a force, when applied on the quartz crystal, produces electric charges on the crystal ...as high as 100 ...conventional piezoelectric transducer with a ...
6
Dynamic nonlinearity in Piezoelectric flexural ultrasonic transducers
... ultrasonic transducers operating at sufficiently high amplitude, dynamic nonlinearity can be exhibited as Duffing- type behavior, where characteristics such as the jump phe- nomenon and amplitude ...
11
Development of piezoelectric and electrodynamic flexural transducers for air coupled ultrasonics
... for transducers in general and for flexural transducers in particular is the front face ...A high displacement for a low voltage means that transducer can operate with simple supporting electronics, ...
165
Improvement of Surface Finish by Multiple Piezoelectric Transducers in Fused Deposition Modelling
... to high tech metal matrix composites with high temperatures and ...ultrasonic frequency range of 20 kHz that applied to the work piece and discovered a decrease of grinding forces and positive ...
6
Experimental investigation of hypersonic boundary-layer transition on a cone model in the High Enthalpy Shock Tunnel (HEG) at Mach 7.5
... pressure transducers were used to quantitatively measure the surface pressure so that the angle of attack and the yaw angle could be ...pressure transducers were grouped in pairs and flush mounted along the ...
9
Experimental evaluation of three designs of electrodynamic flexural transducers
... operational frequency, and hence a greater pressure ...and high Q value for this transducer, which could be improved by introducing mechanical ...Commercial piezoelectric flexural transducers ...
10
Harmonic analysis of lossy piezoelectric composite transducers using the plane wave expansion method
... of piezoelectric (electrically active) composite transducers using finite element (FE) modelling [14, ...the high computational cost. FE modelling can be used in the frequency domain [16] but ...
23
Piezoelectric materials for high temperature transducers and actuators
... temperature piezoelectric materials are developing into a mature technology, with increasing requirement in a number of important ...ing piezoelectric coupling at high ...require high coupling ...
12
Theoretical modelling of frequency dependent elastic loss in composite piezoelectric transducers
... incorporate frequency dependent elastic loss in the polymer ...these transducers. Composite trans- ducers composed of a piezoelectric ceramic and a passive polymer phase provide better ...
20
Energy Harvesting Applications using Piezoelectric Sensors
... ABSTRACT: With the current scenario of global warming and with the rapid depletion of energy resources, the world is on a brink of an energy crisis. In the wake of this, renewable energy seems to be the only escape from ...
12
Noncontact Driving System Using Induction Based Method and Integrated Piezoelectric Ultrasonic Transducers
... It is desirable that the received signal strength is as high as possible when the sensing system is applied in an op- erating field as like a nuclear reactor. Thus, a test was carried to determine whether a ...
8
Novel Design of Buchholz Relay by Implementation of Ultrasonic Liquid Level Transducer
... used transducers are contact transducers, angle beam transducers, delay line transducers, immersion transducers, and dual element transducers for different ...Contact ...
6
Characterisation of the polarisation state of embedded piezoelectric transducers by thermal waves and thermal pulses
... perature distribution and the resulting pyroelectric current have been characterised both by two analytical and one FEM model. Further improvement of the thermal pulse set-up is required to reduce the signal-to-noise ...
6
Enhancing the bandwidth of piezoelectric composite transducers for air-coupled non-destructive evaluation
... In addition to the manufacture of one of these devices, a finite element model was constructed to simulate the theoretical behaviour of the proposed transducer. Using PZFlex (Weidlinger Associates, Mountain View, CA), a ...
32
High-Frequency Calibration of Piezoelectric Displacement Sensors Using Elastic Waves Induced by Light Pressure
... of a laser pulse also enables a controlled size variation of the source force impact area, which in turn allows variation in the stimulant signal frequency range. In this calibration, for example, the size of the ...
10