指针式仪表的自动读数是近年来的热门研究内容，但一直存在由成像畸变导致的误差较大的问题。
Automatic reading of analog meter has been a research hotspot recently, but the reading error caused by imaging distortion always exists.
本文还讨论了指针式仪表倾斜误差自动测量方法。
Also discusses the oblique error measurement method of dial instrument.
主要介绍采用“数表法”检定指针式电压表示值的误差分析及测量的不确定度的计算。
The article mainly introduces the error analysis, calculation of uncertainty in measuring the error of indication of needle DC voltmeter by DVM.
实验表明：该读数方法绝对误差为零，非常适合于高精度指针式仪表自动跟踪判读。
The experiment shows that the absolute error of the reading approach is zero, which is applicable to automatic tracking reading of high-precision meter very well.
实验表明：该读数方法绝对误差为零，非常适合于高精度指针式仪表自动跟踪判读。
The experiment shows that the absolute error of the reading approach is zero, which is applicable to automatic tracking reading of high-precision meter very well.
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