摘要
声学多普勒流速剖面仪(ADCP)是近20年来发展起来的一种新型海流遥测计,由于其在大深度水中才能进行性能检测,故造成检测困难.为解决ADCP陆上检测的难题,介绍了一种ADCP陆上检测装置:通过设置回波信号相对于发射信号的延时实现了任意深度矢量的模拟,通过设置回波信号相对于发射信号的多普勒频移实现了任意速度矢量的模拟;通过对接阵将模拟的信号耦合到ADCP换能器中,经过ADCP处理后给出相应的高度和速度信息,对比ADCP的返回值和ADCP陆上检测装置设定值达到检测的目的.这样就可以在陆上通过ADCP陆上检测装置来检测ADCP.实验室试验和工程使用表明,该模拟装置使用效果良好.
The acoustic Doppler current profiler （ADCP） is a novel ocean current telemeter used in the past 20 years. ADCP is hard to be measured on land because its performance can only be measured in deep water. In order to conquer such difficulty, this paper presents an ADCP land-measuring device. It simulates the vector of arbitrary depth by setting the time delay of echo signal relative to transmitted signal, and the vector of arbitrary speed by set- ting the Doppler frequency change of echo signal relative to transmitted signal. The simulated signal was coupled to the ADCP transducer, then after ADCP treatment, relevant information of depth and speed was given, and then the measurement was accomplished by comparing the return value of ADCP and the set value of the ADCP land-measuring device. Thus ADCP can be measured on land by ADCP land-measuring device. The laboratory experiment and application in practice prove that the simulative ADCP land-measuring device is effective.
出处
《应用科技》
CAS
2009年第8期39-43,共5页
Applied Science and Technology
