对大坝内观监测仪器在工程应用中的仪器电缆、数据检验、仪器鉴定等问题进行了探讨,对内观监测差阻式仪器埋设时电缆接头工艺的改进,以及观测异常数据判别与差阻式监测仪器运行期传感器的鉴定进行了论述,并结合具体实例进行了分析。同时,强调了作为安全监测中间环节的仪器埋设安装和数据采集质量控制的重要性。 This paper discusses some problems such as instrument cable, data inspection and instrument appraisal in engineering application of dam inner view monitoring instrument. The improvement of cable joint process when in-line monitoring differential resistance instrument is embedded, as well as the discrimination and differential resistance of observation abnormal data Type monitoring instrument operation period sensor identification were discussed, combined with specific examples were analyzed. At the same time, the importance of quality control of embedded instruments and data acquisition as an intermediate part of safety monitoring was emphasized.