scholarly journals Bandwidth Enhancement: Correcting Magnitude and Phase Distortion in Wideband Piezoelectric Transducer Systems

10.5772/28083 ◽  
2011 ◽  
Author(s):  
Said Assous ◽  
John Rees ◽  
Mike Lovell ◽  
Laurie Linnett ◽  
David Gu
Keyword(s):  
Piezoelectric Transducer ◽  
Phase Distortion ◽  
Bandwidth Enhancement

Adjustment of piezoelectric transducer parameters for bandwidth enhancement

Ultrasonics ◽  
1985 ◽  
Vol 23 (6) ◽  
pp. 276-280
Author(s):  
M. Houze ◽  
M.G. Gazalet ◽  
J.M. Rouvaen ◽  
B. Nongaillard ◽  
E. Bridoux
Keyword(s):  
Piezoelectric Transducer ◽  
Bandwidth Enhancement

scholarly journals An approach for correcting magnitude and phase distortion in wideband piezoelectric transducer systems

2007 ◽  
Author(s):  
Said Assous ◽  
David Gunn ◽  
Claire Hopper ◽  
Peter D Jackson ◽  
Laurie Linnett ◽  
...  
Keyword(s):  
Piezoelectric Transducer ◽  
Phase Distortion

scholarly journals Non-Foster acoustic radiation from an active piezoelectric transducer

2021 ◽  
Vol 118 (30) ◽  
pp. e2024984118
Author(s):  
Curtis Rasmussen ◽  
Andrea Alù
Keyword(s):  
Quality Factor ◽  
Piezoelectric Transducer ◽  
Acoustic Radiation ◽  
Passive Systems ◽  
Bandwidth Enhancement ◽  
Acoustic Resonators ◽  
Active Metamaterials ◽  
Active Circuit ◽  
Acoustic Radiator ◽  
The Way

The quality factor of a passive, linear, small acoustic radiator is fundamentally limited by its volume normalized to the emitted wavelength, imposing severe constraints on the bandwidth and efficiency of compact acoustic sources and of metamaterials composed of arrangements of small acoustic resonators. We demonstrate that these bounds can be overcome by loading a piezoelectric transducer with a non-Foster active circuit, showing that its radiation bandwidth and efficiency can be largely extended beyond what is possible in passive radiators, fundamentally limited only by stability considerations. Based on these principles, we experimentally observe a threefold bandwidth enhancement compared to its passive counterpart, paving the way toward non-Foster acoustic radiation and more broadly active metamaterials that overcome the bandwidth constraints hindering passive systems.

Analysis of AC-DC Converter Circuit Performance with Difference Piezoelectric Transducer Array Connection

2020 ◽  
Vol 12 (7) ◽  
Author(s):  
Nik Ahmad Zainal Abidin ◽  
◽  
Norkharziana Mohd Nayan ◽  
Azuwa Ali ◽  
N. A. Azli ◽  
...  
Keyword(s):  
Piezoelectric Transducer ◽  
Simulation Analysis ◽  
Piezoelectric Sensor ◽  
Transducer Array ◽  
Circuit Performance ◽  
Array Configuration ◽  
Full Wave ◽  
Bridge Rectifier ◽  
In Series ◽  
Parallel Voltage

This research presents a simulation analysis for the AC-DC converter circuit with a different configurations of the array connection of the piezoelectric sensor. The selection of AC-DC converter circuits is full wave bridge rectifier (FWBR), parallel SSHI (P-SSHI) and parallel voltage multiplier (PVM) with array configuration variation in series (S), parallel (P), series-parallel (SP) and parallel-series (PS). The system optimizes with different load configurations ranging from 10 kΩ to 1 MΩ. The best configuration of AC-DC converter with an appropriate array piezoelectric connection producing the optimum output of harvested power is presented. According to the simulation results, the harvested power produced by using P-SSHI converter connected with 3 parallel piezoelectric transducer array was 85.9% higher than for PVM and 15.88% higher than FWBR.

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