Transmission line model equivalent circuit for piezoelectric transducers including the effect of electrical terminal impedance

A new transmission line model equivalent circuit for a thickness-mode piezoelectric vibrator is derived. The equivalent circuit includes an electrical impedance connected to the terminals of a piezoelectric vibrator. A bolt-clamped frequency-controllable piezoelectric transducer is analyzed by using...

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Bibliographic Details
Published inJapanese Journal of Applied Physics Vol. 35; no. 5B; pp. 3231 - 3235
Main Authors CHUBACHI, N, KIM, M.-J
Format Conference Proceeding Journal Article
LanguageEnglish
Published Tokyo Japanese journal of applied physics 1996
Subjects
Acoustics
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Physics
Transduction; acoustical devices for the generation and reproduction of sound
Laser dopplerometry
Transmission line
Piezoelectric sensor
Equivalent circuit
Experimental study
Multilayered waveguide
Ultrasonic transducer
Frequency control
Electrical impedance
Non contact measurement
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Summary:A new transmission line model equivalent circuit for a thickness-mode piezoelectric vibrator is derived. The equivalent circuit includes an electrical impedance connected to the terminals of a piezoelectric vibrator. A bolt-clamped frequency-controllable piezoelectric transducer is analyzed by using the equivalent circuit. The changes in particle velocity distribution by varying the electrical impedance in the frequency-controllable ultrasonic transducer are measured by a noncontact method based on laser Doppler velocimetry. The changes in particle velocity distribution agree well with results calculated using the new equivalent circuit.
ISSN:0021-4922
1347-4065
DOI:10.1143/jjap.35.3231