25KHZ超聲波Langevin換能器低頻壓電陶瓷換能器，用于清洗機

The requirement for ultrasonic transducers is to have a smaller device to achieve higher frequencies. The ultrasonic probe capacitive micro machined ultrasonic transducer prepared using MEMS technology is easier to array than ordinary piezoelectric ceramic ultrasonic probes, and has a similar acoustic impedance to water, strong penetration, small size, high frequency, and is playing an increasingly important role in the field of ultrasonic cleaning. Due to the use of surface sacrificial layer technology, sputtering technology, wet etching technology and other micro processing techniques during the preparation process, capacitive micro machined ultrasonic transducers overcome many shortcomings of traditional piezoelectric ultrasonic sensors and have high sensitivity. Broadband. Easy to manufacture, with low self noise. The advantages of wide working temperature range and easy electronic integration, as well as the trend of replacing traditional piezoelectric ultrasonic sensors, have broad application prospects in the field of ultrasonic cleaning.