NDLI: Equivalent circuit with temperature parameters for piezoelectric sensor under space environment

Content Provider	IEEE Xplore Digital Library
Author	Sanghoon Lee Moojoon Kim Jungsoon Kim Seongyeon Yoo
Copyright Year	2012
Description	Author affiliation: Korea Aerosp. Res. Inst., Daejeon, South Korea (Sanghoon Lee) \|\| Dept. of Media Eng., Tongmyong Univ., Busan, South Korea (Jungsoon Kim) \|\| Dept. of Mech. Design Eng., Chungnam Nat. Univ., Daejeon, South Korea (Seongyeon Yoo) \|\| Dept. of Phys., Pukyong Nat. Univ., Busan, South Korea (Moojoon Kim)
Abstract	The temperature dependence of the characteristics in a PZT-S piezoelectric ceramic vibrator with the transverse mode was investigated ranging from -100°C to 90°C using by thermal vacuum chamber to utilize the vibrator to the aerospace industries. As the results, at room temperature, the resonant and anti-resonant frequencies had the minimum value, whereas, the dielectric constant increased linearly in the given temperature range. The mechanical loss decreased linearly from 0.08 to 0.03. Through the regression analysis, the temperature dependence functions of the characteristics were found as linear and square regression functions. An equivalent circuit with thermal parts was derived by using those functions. Applying the equivalent circuit, the input admittance characteristics of the piezoelectric vibrator were calculated. It can be confirmed that this method is useful to estimate the characteristics change of the piezoelectric vibrator caused by the temperature change under the space environment.
Starting Page	847
Ending Page	850
File Size	806028
Page Count	4
File Format	PDF
ISBN	9781467345613
ISSN	19485719
e-ISBN	9781467345620
DOI	10.1109/ULTSYM.2012.0211
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-07
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature measurement Frequency measurement Impedance Resonant frequency Fitting Admittance dielectric constant Piezoelectric vibrator Space environment Temperature change Electro-mechanical coupling factor resonant frequency mechanical loss
Content Type	Text
Resource Type	Article

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