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高速水流中的水流脉动对水工建筑物的安全运行存在很大的影响,水流脉动压强的特征值一般需通过水工模型试验确定。目前大都采用大容量数据自动采集处理系统进行脉动压强的采集和分析,正确的采样和处理是分析脉动压强的先决条件,并应对误差进行分析,给出测试结果的误差范围,供设计人员参考和选用。
The pulsation of water flow in high-speed water flow has a great influence on the safe operation of hydraulic structures. The characteristic value of pulsating pressure of water flow generally needs to be confirmed through the hydraulic model test. Currently most of the large-capacity data acquisition and processing system for automatic acquisition and analysis of pulsatile pressure, the correct sampling and processing is a prerequisite for the analysis of pulsatile pressure and error should be analyzed to give the test results of the error range for designers to reference and Use.