摘要
简要概括了单波束测深仪声学指标检测的国内外现状及其检定校准工作的必要性。利用精密回旋装置平台,在消声水池中完成了对单波束测深仪声源级、频率和波束角指向性的检测。重点介绍了其检测系统的组成,指标测试方案以及数据处理过程。实际测得被检换能器声源级为211.545d B,频率为200.0025kHz,波束角为6.12°,满足常用海底声纳测量仪器计量检测研究与应用的精度要求,对规范水下声纳设备声学指标的检测方法具有实际意义。
With a brief summary of the research of acoustical index detection for single beam echosounders at home and abroad ,this paper analyzes the necessity of acoustical calibration work.By using the accurate rotation apparatus in an anechoic tank ,the detection of sound source level, frequency, beam patterns are completed.This paper mainly introducs the composition of the system, test scheme and data processing.The result indicates that this approach can achieve the high accuracy of theacoustical index ： sound source level （ 211.545dB ）, frequency （200.0025kHz）, beam patterns （6.12°）, which is helpful to standarlize the calibration procedure of sonar systems.
出处
《海洋测绘》
CSCD
2015年第6期69-72,77,共5页
Hydrographic Surveying and Charting
基金
国家自然科学基金(41376108)
海洋公益性行业科研专项(201305034)
国家科技支撑计划课题(2012BAB16B01)
关键词
单波束测深仪
消声水池
精密回旋装置
声学指标
水声换能器
滤波
Key single-beam echosounder
anechoic tank
accurate rotation apparatus
sonar transducer
acousticalindex
filtering
