TY  - JOUR
AB  - Purpose This study aims to simulate and test the performance of a transmitting and receiving capacitive micro-machined ultrasonic transducer (CMUT). Aimed at detecting demand of the CMUT, a matched integrated adjustment circuit was designed through analyzing processing methods of transducer’s weak echo signal.Design/methodology/approach Based on the analysis of CMUT array structure and work principle, the CMUT units are designed and the dynamic performance analysis of SIMULINK is given according to the demand of underwater detecting. A transceiver isolation circuit is used to make transmission mode and receiving mode separate. A detection circuit is designed based on the transimpedance amplifier to achieve extraction of high-frequency and weak signal.Findings Through experimentation, the effectiveness of the CMUT performance simulation and the transceiver integrated adjustment circuit were verified. In addition, the test showed that CMUT with 400 kHz frequency has wider bandwidth and better dynamic characteristics than other similar transducers.Originality/value This paper provides a theoretical basis and design reference for the development and application of CMUT technology.
VL  - 39
IS  - 4
SN  - 0260-2288
DO  - 10.1108/SR-01-2019-0015
UR  - https://doi.org/10.1108/SR-01-2019-0015
AU  - Zhang Rui
AU  - Zhao Lei
AU  - Xie Dan
AU  - Song Jinlong
AU  - Zhang Wendong
AU  - Pan Lihu
AU  - Zhang Yanhua
PY  - 2019
Y1  - 2019/01/01
TI  - Performance simulation and testing of capacitive micro-machined ultrasonic transducer
T2  - Sensor Review
PB  - Emerald Publishing Limited
SP  - 554
EP  - 566
Y2  - 2024/04/16
ER  -