A Study on the Improvement of Characteristics of the Ultrasonic Transducer Used in Flowmeter

초음파 유량계에 사용되는 초음파 진동자 특성향상에 관한 연구

For the piezoelectric vibrator, PZT, in a general transmit-receive sensor using the ultrasonic flowmeter, the characteristics of frequency response relating to the backing materials were analyzed with the Mason equivalent circuit for design and the sensitivity of fabricated transducer relating to the matching materials was measured and discussed. The results those were measured in water for the transmit-receive characteristics of each transducer can be applied to the flowmeter sensor.