Optimization Design of Impedance Matching Circuit of Piezoelectric Ultrasonic Transducer

In response to the optimization design of the matching circuit of piezoelectric ultrasonic transducers, this paper takes battery powered small integrated soar as an example to explore the optimization design method of piezoelectric ultrasonic transducer impedance matching circuit. Firstly, the working principle of battery powered small integrated soar and its piezoelectric ultrasonic transducer was introduced, and the impact of the impedance matching characteristics of the piezoelectric ultrasonic transducer on power transmission efficiency was introduced. Secondly, based on the traditional impedance matching model, an optimized impedance matching method of piezoelectric ultrasonic transducers is proposed. Finally, the optimization method was experimentally validated. The experimental results show that the impedance matching circuit designed using optimization methods can reduce the reactive power loss of piezoelectric ultrasonic transducers, which is of great significance for achieving maximum power transmission of sonar transmitters, improving transmission efficiency, and obtaining better signal-to-noise ratio.