Large-signal impedance measurements of piezoelectric ultrasonic transducers

Xinyi Zhong, Sang Lam

Research output: Chapter in Book or Report/Conference proceedingConference Proceedingpeer-review

2 Citations (Scopus)

Abstract

This paper reports the use of large-signal impedance measurements to study the behaviour of piezoelectric ultrasonic transducers (PUTs). The method requires only ordinary laboratory equipment including a signal generator, a digital oscilloscope together with a high frequency transformer. Equivalent circuit model parameters are extracted from the impedance measurement data of for investigating the device characteristics of the PUT. Such useful model parameter extraction is not possible from impedance measurements using even a sophistical LCR meter which is for small-signal impedance measurements. This low-cost and simple impedance measurement method is attractive for allowing even undergraduate students to perform research-related experiments.

Original languageEnglish
Title of host publication2015 IEEE 12th International Conference on Electronic Measurement and Instruments, ICEMI 2015
EditorsCui Jianping, Wu Juan
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages731-736
Number of pages6
ISBN (Electronic)9781479976195
DOIs
Publication statusPublished - 16 Jun 2016
Event12th IEEE International Conference on Electronic Measurement and Instruments, ICEMI 2015 - Qingdao, China
Duration: 16 Jul 201518 Jul 2015

Publication series

Name2015 IEEE 12th International Conference on Electronic Measurement and Instruments, ICEMI 2015
Volume2

Conference

Conference12th IEEE International Conference on Electronic Measurement and Instruments, ICEMI 2015
Country/TerritoryChina
CityQingdao
Period16/07/1518/07/15

Keywords

  • equivalent circuit modeling
  • impedance measurement
  • large-signal measurement
  • piezoelectric ultrasonic transducer

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