Study on technique for measuring high power ultrasound

本研究的目的是发展高功率超声测量技术，取得了以下成果。在开发高声压测量装置的情况下，我们开发了水热合成PZT薄膜的稳健水听器。该水听器具有较强的鲁棒性，可以长时间测量高强度的超声信号.针对高超声功率测量技术的研究，提出了一种新型的水容器结构和测量方法。在产生的声空化量的测量技术的情况下，通过使用高空间分辨率空化传感器测量的宽带积分电压具有被用作产生的声空化量的指标的潜力。

Purpose of the study is the development of high power ultrasound measurement technique, the following results have been obtained. In case of the development of a device for measuring high acoustic pressure, we developed the robust hydrophone with hydrothermally synthesized PZT film. The robust hydrophone could be measured the high intensity ultrasound signals for long time. In case of the study of a technique for measuring high ultrasonic power, structure of novel water vessel and a novel measurement method was proposed. In case of measurement technique of the amount of generated acoustic cavitation, Broadband integrated voltage measured by using high spatial resolution cavitation sensor has the potential to be used an index of the amount of generated acoustic cavitation.