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Design and Resonant Characteristics of the Ultrasonic Sensor for Gas Flowmeter  

Hong, Jae-Il (동서울대학 전기정보제어학과)
Lee, Sang-Cheol (동서울대학 전기정보제어학과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers P / v.51, no.4, 2002 , pp. 193-197 More about this Journal
Abstract
In this paper, the ultrasonic sensor for gas flowmeter was simulated, fabricated and measured according to the assembly step and the piezoelectric vibrator layers. The simulated resonant frequency and the measured resonant frequency were similar except two layer sensor. The simulated resonant frequency of three layer sensor was 48 kHz and the measured resonant frequency of three layer sensor was 45.2 kHz. From the results, the ultrasonic sensor for gas flowmeter could be designed and expected without fabrication.
Keywords
Ultrsonic sensor; Gas flowmeter; Piezoelectric vibrator; Resonant frequency; simulation;
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