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一、前言在液压技术中,管道速度场分布,动态流量的测定是研究液压系统动态性能重要参数之一。这些都是现有一般测速仪与流量计所无法完成的。因而在一定程度上影响了液压系统的理论研究和实验分析,它是液压领域中所急待解决的问题。一九七九年八月上海交通大学液压传动与控制教研室在上海激光技术研究所大力协助下,共同试用了“后向散射激光多普勒测速仪”对液压系统中油液流速进行测定,初步取得了可喜的成绩,现将试验装置与试验结果介绍如下。
I. Introduction In hydraulic technology, the distribution of pipe velocity field and the determination of dynamic flow rate are one of the important parameters to study the dynamic performance of hydraulic system. These are the existing general speedometer and flowmeter can not be completed. Therefore, to a certain extent, it affects the theoretical research and experimental analysis of the hydraulic system. It is an urgent problem to be solved in the hydraulic field. In August 1979, under the strong support of the Shanghai Institute of Laser Technology, Shanghai Jiao Tong University Hydraulic Drive and Control Department experimented with the “backscatter laser Doppler velocimeter” to determine the oil flow rate in the hydraulic system, and initially obtained The gratifying results, now the test device and test results are as follows.