作者：安寅, 黄涛威, 陈棣湘

作者单位：国防科学技术大学机电工程与自动化学院, 湖南 长沙 410003

关键词：水声传感器;压电振动;灵敏度;虚拟仪器;数字锁相放大

摘要：

针对声引信中水声传感器灵敏度检测的实际要求, 设计一套基于虚拟仪器技术的便携式水声传感器测试系统。水声传感器测试装置采用压电振动法, 利用虚拟仪器设计软件LabVIEW进行数据的采集、处理和系统用户界面的设计;并采用数字锁相放大技术对采集的数据进行微弱信号处理, 以获得传感器输出信号。通过对某型水声传感器在10～5 000 Hz间9个频率点的声压灵敏度测试, 结果表明:该水声传感器测试系统测试精度高, 并且具有操作简单、便于携带的优点, 适用于工业现场对水声传感器性能的测试。

Design and implementation of test system for portable underwater acoustic sensor

AN Yin, HUANG Taowei, CHEN Dixiang

College of Mechanics Engineering and Automation, National University of Defense Technology, Changsha 410003, China

Abstract: According to the practical requirements of the underwater acoustic sensor detection sensitivity of acoustic fuze, design a set of portable underwater acoustic sensor test system based on virtual instrument technology. Underwater acoustic sensor testing device adopts the design of piezoelectric vibration method, design by using LabVIEW virtual instrument design software for data collection, processing and system user interface. Based on the acoustic pressure sensitivity test of a certain type of underwater acoustic sensor in 9 frequency points of 10 Hz to 5 000 Hz, the results show that underwater acoustic sensor test system with high precision, and has the advantages of simple operation, convenient carrying, is suitable for the industry field on the performance of underwater acoustic sensor test.

Keywords: acoustic sensors;piezoelectric vibration;sensitivity;virtual instrument;digital lock-in amplifier

2015, 41(6): 68-71,106  收稿日期: 2014-10-25;收到修改稿日期: 2014-12-24

基金项目: 

作者简介: 安寅(1986-),女,山西晋城市人,实验师,硕士,研究方向为仪器仪表工程。

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