电表指针偏转角度与误差的关系

The relationship between the meter pointer deflection angle and error

在电流表和电压表的使用实践中,测量的准确性除了和电流表的量程有关外,往往还和读数时指针的偏转大小有着重要关系。电表指针角度偏转的越小,误差就越小,指针偏转角度越大,则误差越大。

In the practice of the use of ammeters and voltmeters, usually, measurement accuracy is affected by the range of ammeter and the deflective angle of pointer.The error is in direct proportional to the deflection angle of pointer.