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Open AccessArticle

Physical Characteristics of and Transient Response from Thin Cylindrical Piezoelectric Transducers Used in a Petroleum Logging Tool

1
School of Electronic Engineering, Xi’an University of Posts and Telecommunications, Xi’an 710121, Shaanxi, China
2
Baoding Hongsheng Acoustic-electric Equipment Co., Ltd., Baoding 071000, Hebei, China
3
James Franck Institute and Department of Chemistry, The University of Chicago, Chicago, IL 60637, USA
*
Author to whom correspondence should be addressed.
Micromachines 2019, 10(12), 804; https://doi.org/10.3390/mi10120804
Received: 15 October 2019 / Revised: 13 November 2019 / Accepted: 19 November 2019 / Published: 22 November 2019
(This article belongs to the Special Issue Piezoelectric Transducers: Materials, Devices and Applications)
We report on a transient response model of thin cylindrical piezoelectric transducers used in the petroleum logging tools, parallel to a recently established transient response model of thin spherical-shell transducers. Established on a series of parallel-connected equivalent-circuits, this model provides insightful information on the physical characteristics of the thin cylindrical piezoelectric transducers, i.e., the transient response, center-frequency, and directivity of the transducer. We have developed a measurement system corresponding to the new model to provide a state-of-the-art comparison between theory and experiment. We found that the measured results were in good agreement with those of theoretical calculations. View Full-Text
Keywords: petroleum acoustical-logging; piezoelectric cylindrical-shell transducer; center-frequency; experimental-measurement petroleum acoustical-logging; piezoelectric cylindrical-shell transducer; center-frequency; experimental-measurement
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MDPI and ACS Style

Fa, L.; Tu, N.; Qu, H.; Wu, Y.; Sun, K.; Zhang, Y.; Liang, M.; Fang, X.; Zhao, M. Physical Characteristics of and Transient Response from Thin Cylindrical Piezoelectric Transducers Used in a Petroleum Logging Tool. Micromachines 2019, 10, 804.

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