激光干涉技术在水声测量中的应用与发展

Reviews of the Research Progresses in Underwater Acoustic Measurement Using Laser Interferometry Technique

激光干涉技术为水声测量提供了一种不同于传统水听器的新途径。对激光干涉技术在水声测量中的应用与发展进行了概述,从水听器灵敏度校准、声场分布测量、换能器表面振速测量三个方面,总结分析了国内外的研究进展及当前的技术水平。对上述三种技术的测量原理进行了介绍,并给出一些具有代表性的测量结果,分析了各技术的制约因素和有待解决的关键问题,对未来的研究发展方向进行了预测,虽然目前激光干涉测量还无法完全替代传统的水声测量方式,但经过持续研究与发展,有望更好地发挥激光干涉技术的优势,提高水声测量水平。

Laser interferometry technique provides an alternative way for measurement of underwater acoustic,which is different from the traditional way using a hydrophone.This paper presents a review of the applications in underwater acoustic measurement using laser interferometry,including hydrophone calibration,acoustic distribution measurement,and measurement of transducer surface velocity.The current research progress are summarized and analyzed.The measurement theories of the above three techniques are introduced and some representative results are given,the constraints of each technique and the key problems to be solved are analyzed,and the future research and development directions are predicted.Although laser interferometry is not yet a complete replacement for traditional underwater acoustic measurement,it is expected that the advantages of laser interferometry will be better utilized and the level of underwater acoustic measurements will be improved after continued research and development.