数显测高仪示值误差的测量不确定度评定

Evaluation of Uncertainty of the Error of Indication of Digital Display Height Measuring Instrument

针对数显测高仪各校准点示值误差的校准方法,给出了示值误差的数学模型,并以某校准点为例,对该校准点示值误差的合成标准不确定度和扩展不确定度进行了评定。

The measuring mathematics model for the method of calibration of the error of indication of the digital display height measuring instrument is established in this paper. The combined standard uncertainty and the expanded uncertainty of the error of indication of a type of digital display height measuring instrument are evaluated.