The effect of power output of the PZT-metal composite disc bender was studied in this article,when the disc was under the effect of sound field.The piezoelectric ceramic in a clamping state was placed in the sound field which was single-frequency steady-state sine wave.Under the excitation,the piezoelectric ceramic was de-formed.The results show that the output voltage and power of the device were maximum at the resonance fre-quency.In the sinusoidal sound field,the output voltage of the piezoelectric disc bender was up to 4.62 V in open circuit when the acoustic frequency was 907 Hz.Under a sound pressure of 110 dB,the power of 60.4μW was obtained across a resistance load of 1 1 .2 kΩ.%对圆盘式压电能量收集器在声场作用下的电能输出效果进行了研究.将处于夹持状态的压电陶瓷片，放置在单频稳态的正弦波形声场中，由于激振作用，压电陶瓷片会产生形变.实验结果表明，在器件处于谐振状态时输出电压和功率会达到最大值.在正弦声场中，当声波频率达到907 Hz的谐振频率时压电陶瓷片的开路输出电压可以达到4．6 V；在110 dB 的声场中，当负载电阻达到11．2 kΩ时，输出功率最大可达60．4μW.
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