[在感潮河段中ADCP与常规流速仪的测流应用比较] 河面和河底的流速

　　摘 要:将ADCP与传统流速仪的进行优缺点比较,ADCP较传统流速仪具有集测深、测流、测向一体,高效、快捷、精确的优点,但同时有具有操作要求高,且易受到泥沙、水深、船速、含盐度等测验环境影响的缺点。通过1200kHz的ADCP与LS-20B的在黄浦江上游的试验比较,分析了其相对误差、相对标准差和随机不确定度。在感潮河段中,ADCP的应用精度满足测验误差的要求。
　　关键词:ADCP 优缺点 LS-20B 误差分析
　　中图分类号:TV2 文献标识码:A 文章编号:1672-3791(2012)06(a)-0112-02
　　Abstract:We analyzed the advantages and disadvantages between Acoustic Doppler Current Profiler (ADCP) and tradition current meter.And it is founded that ADCP have the advantages of sounding,direction-finding and flow measuring as one,and efficiency,high speed and accuracy.At the same time,the ADCP need high operation requirements.As well as environmental change can affect the ADCP accuracy,such as sediment,depth of water,ship’s speed,salt content influence. Through the study of the 1200kHz ADCP and the LS-20B in the upper reaches of the Huangpu River,we analyze the relative error,relative standard deviation and the random uncertainty.The result shows that ADCP method has a better effect,and can meet the error requirement.
　　Key words:ADCP;Advantages and disadvantages;LS-20B;error analysis