数字水准仪室内快速检校的原理与方法  

Principle and Method of Indoor Rapid Calibration of Digital Level

作　　者：沈迎光 吴学文 董旭明 杨锟 SHEN Yingguang;WU Xuewen;DONG Xuming;YANG Kun(The Center of Shaanxi Metrological Supervision and Verification for Surveying and Mapping Instruments,Xi'an 710054,China)

机构地区：[1]陕西测绘仪器计量监督检定中心,陕西西安710054

出　　处：《测绘地理信息》2020年第6期43-46,共4页Journal of Geomatics

基　　金：西安市科技服务业发展工程计划(CX13135-4)。

摘　　要：为克服数字水准仪室外检校的局限性,实现室内快速精确检校。基于数字水准仪的测量原理,采用室外模拟法和室内外比对法,建立专用光管室内数字水准仪检定装置,提出了的数字水准仪室内快速检校电子i角和补偿误差的方法,探讨了根据测量读数异常和仪器指示检验电荷耦合器件位移变化的方法。实践证明,室内方法克服了室外检校方法的局限性,成本低、效率高、实用性强,检校结果更加稳定、可靠。因此,快速判断和评估数字水准仪的性能,同时保证检校精度和效率,对于仪器使用者和检定机构而言,有较好的参考应用价值。In order to overcome the limitations of outdoor calibration method of digital levels and realize the indoor calibration rapidly and accurately, we first use the measurement principle of digital level and adopt the outdoor simulation method and the comparison method to build a special indoor collimator device to calibrate digital levels, then put forward the indoor rapid method of calibration electronic i angle and compensator error, and finally discuss the method to verify displacement changes of CCD(charge coupled device) according to reading exceptions and instrument instructions. Experiment shows that the indoor calibration method overcomes the limitations of the outdoor method and it is of lower cost,higher efficiency and better practicability. Its calibration results are more stable and reliable and this method has higher reference and application value.

关 键 词：数字水准仪 检定装置 检校方法 电子i角 补偿误差 电荷耦合器件 

分 类 号：P242[天文地球—测绘科学与技术]