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HomeArticlesTolerances for Non-Linear Analog Resistance Scales

Tolerances for Non-Linear Analog Resistance Scales

February 18, 2014 Office Articles, Vol. 21:1 (Jan 2014)
Meter face of the Simpson 260, Volt-Ohm-Milliammeter (VOM). Picture courtesy of simpson260.com.

By Tom Morgan

A method is derived for calculating the resistance tolerances for non-linear resistance scales, whose accuracy tolerances are given in degrees of arc instead of percent of reading or range.

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