乌拉泊水库库水位自动测量误差分析及对策

Error Analysis and Countermeasures for Reservoir Stage Automatic Measurement of Wulabo Reservoir

提出了乌拉泊水库压阻式水位传感器运行中存在的误差问题,分析了静态、动态2种不同状况下的误差原因,在静态时采用系数修正方法;在动态时,利用门顶的水柱压力(h/H～e/a)的关系图换算出实际的库水位,解决了人工和自动测量库水位误差大的问题。

The paper puts forward existent error issues in the operation of piezoresistive water level sensor used in Wulapo reservoir. The author analyses causes of error under different situations of static and dynamic state： method of modifying coefficients is adopted in static state; in dynamic state, diagram of water column pressure of gate top is used for conversion of reservoir stage. Thus, big error of manual and automatic measurement is avoided.