Abstract: This paper analyzes present situation and existing problems in tests of dam safety monitoring instruments, and proposes that the items such as insulation, temperature measurement error, resolution, non-linearity (non-coincidence), non-repetition, hysteresis (return difference), comprehensive error, relative error, and 0 ℃ resistance difference, cable waterproof sealing, conductor resistance and leak check for differential resistance instruments shall be taken as field test items. It also proposes the idea that least squares method should be adopted for testing data analysis, and points out that long-term stability tests is of importance and necessity and they should be specially studied and stipulated.

Key words: linear regression, polynomial regression, long-term stability, stress relieving

摘要： 分析当前大坝安全监测仪器检验的现状及存在问题，提出将绝缘性、温度测量误差、分辨力、非线性度（不符合度）、不重复度、滞后（回差）、综合误差、相对误差以及差动电阻式仪器的0 ℃电阻差、电缆的防水密封性、导体电阻、漏气检查等作为现场检验项目，建议采用最小二乘法进行检验数据分析，指出了长期稳定性检验的重要性和必要性，应做专门研究并进行规定。

关键词: 线性回归, 多项式回归, 长期稳定性, 消应