河流水位差计设计及其应用的可行性研究

水工建筑物或控制河段的上下游水位差是水流运动的决定性要素,是流量推算中的最重要因子。在平原水网区,水位差很小,人工观测精度对其影响十分突出,直接影响流量定线和流量推算的精度,不能满足社会对水资源精细配置的需求。为提高水位差的测量精度,设计了河流水位差计;付之应用,对水位差的测量,无需进行水尺零点高程校正,无需进行水位的对比观测,而且能在任意数量级内提高水位差精度(根据精度选择探头),所构成的误差只有很微小的仪器器差,可满足流量定线与精确推流的目的。该系统还可以同时测记水位。河流水位差计设计简洁,仪器生产难度小,附属设施施工方便,整体造价低廉,具有良好的开发应用前景。

Design of River Stage Difference Recorder and Its Application Feasibility

Hydraulic structure or channel control of upstream and downstream stage difference is the decisive factor of water movement, is the most important factor in calculation of water discharge. In the plain, the stage difference is very small, so that the observation accuracy directly affects the accuracy of discharge lining and calculation, which cannot meet the social demand for fine distribution of water resources. In order to improve the measuring precision of stage difference, the river stage difference recorder was designed. The application of the recorder need not zero elevation correction and comparative stage observation. And at any quantitative level, the stage difference accuracy can be increased.