基于单光子探测的超声空化强度测量方法

Measuring Method of Intensity of Ultrasonic Cavitation Based on Single-photon Detection

针对目前超声空化强度检测存在的实时性差、难以实现在线监测、稳定性差、难以定量检测等问题,提出了一种基于单光子探测的超声空化强度检测方法。介绍和推导了该检测方法的基本原理,根据该原理构建了超声空化强度检测装置,并通过实验验证了超声空化强度与90度Mie散射光的光子计数值之间成线性关系。该方法弥补了现有检测方法的不足,为进一步更加准确地测量超声空化强度创造了有利的条件。

There are so many difficult problems existed in measuring the intensity of ultrasonic cavitation currently,such as poor performance in real-time and on-line monitoring,weak stability and being hard to quantitative measurement. To overcome these problems,a single-photon detection method based on measuring the intensity of ultrasonic cavitation has been proposed. In this paper,the general principle of the proposed method is introduced and deduced. Furthermore,the measuring equipment has been built based on the principle. An experiment has been demonstrated and the results show a good linearity relationship between the intensity of ultrasonic cavitation and the photon count of the 90°Mie scattering. The proposed method makes up the deficiency of the existing methods,and creates a favorable condition for measuring the intensity of ultrasonic cavitation more accurately.