论文部分内容阅读
ZX_(51)电阻箱第一盘的阻值不能使用比较电桥测量,而一般基层单位又没有11×10~5的过渡电阻,无法采用直接替代测量法;若要用单个电阻替代测量法时,又必须折下前进的接触刷片,给测量带来许多困难。为了克服这些困难,我们采用 XQJ_9单桥线路和 BZ_(11)过渡电阻以电桥比例替代法进行测量。1.测量原理与线路
ZX_ (51) resistance box first plate resistance can not be used to compare the bridge measurement, and general grassroots units and no 11 × 10 ~ 5 transition resistance, can not be used directly to replace the measurement method; to replace the measurement with a single resistor , But also must break down the contact brush, to bring a lot of difficulties in the measurement. In order to overcome these difficulties, we use the XQJ_9 single bridge circuit and the BZ_ (11) transition resistor to measure the bridge ratio alternative method. 1. Measuring principle and circuit