气泡式水位计测量误差成因分析  

Measurement error analysis of bubble water level meter

作　　者：冯能操 黄华 

机构地区：[1]长江水利委员会水文局,湖北武汉430010

出　　处：《水利信息化》2018年第1期41-45,共5页Water Resources Informatization

摘　　要：针对气泡式水位计在水文行业实用过程中测量误差较大的现状,根据其工作原理,对环境因素造成的测量误差进行分析,对气泡式水位计最低供气量进行分析计算,就感压气腔结构对测量误差的影响程度进行简要数值计算,从理论上总结得出气泡式水位计的测量误差主要源于水体环境、水位计的供气量、感压气腔的结构和安装方式等3个方面,并结合工程应用给出解决措施和最终效果,最后针对气泡式水位计测量误差问题,总结减小测量误差在使用上需要注意的事项,并从提高精度延长寿命的角度对气泡式水位计的工作方式提出改进建议。In hydrological application, the measurement error of bubble water level meter is large. According to the working principle of the bubble water level meter, the environmental factors are analyzed. And the minimum amount of gas provided by the meter is analyzed and calculated. The influence degree of error caused by air cavity structure is discussed with numerical calculation. It is concluded that the measurement error of bubble water level meter mainly comes from three aspects, such as water environment, gas supply of bubble water meter, structure and installation mode of pressure sensing chamber. Combining with the practical application, the solution measures and the effects are given. The general considerations for the installation and application of bubble water level meter are summarized. Some suggestions about the working method which may improve the accuracy and extend the life of the bubble meter are put forward.

关 键 词：气泡式水位计 测量误差 成因分析 

分 类 号：P335[天文地球—水文科学]