关于欧姆计最佳测量角及选挡依据的求证

Study of the accurate angle range and basis for step determining of ohmmeter

从全电路欧姆定律出发,对指针式欧姆计量程中段的精确测量范围作出了定量的分析和证明. 结果表明,如果欧姆计的满量程偏转角度为90°,则其中间的精确测量范围约为46°.

According to the Ohm law of the whole circuit, the accurate centre on analogue ohmmeter are quantitatively analyzed. The result shows that if the ohmmeter’s full scale is 90°, the accurate angle range will be about 46°.