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本刊1979年第7期发表的《海流观测—双机测流方法》一文,对双机测流方法的精度作了一些讨论。现在国内许多单位和个人对双机测流方法有不同的看法,归结到一点,就是对该法的精度如何评价的问题。本文就这个问题发表自己的一些见解。目前,我国深海测流的主要仪器是印刷海流仪,仪器本身的精度较高,其误差为:流向±5°,流速均方差小于2％,然而,由于“零面”的选择,船只的运动,钢丝绳的伸缩以及
The article published in 1979 seventh issue of the “current observation - double machine flow measurement method,” a article, the accuracy of the two-machine flow measurement methods are discussed. Now many units and individuals in China have different opinions on the method of double-machine flow measurement. At the bottom of that point, it is a question of how to evaluate the accuracy of the law. This article presents some of my own views on this issue. At present, the main instrument of deep sea current measurement in China is the printing current instrument. The accuracy of the instrument itself is high. The error is: the flow direction is ± 5 ° and the mean square error of the flow velocity is less than 2%. However, due to the choice of “zero surface” , Telescopic rope as well