正能量研究

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9447

横河机电2793型精密电阻箱

虎哥2014/12/22 14:54:35正能量研究

横河机电2793型精密电阻箱的基本不确定度是0.01%（部分阻值会大一些），在可调电阻箱中属于准确度很高的类型。
分为两个型号：阻值范围0.100~1111.100欧，和阻值100Ω~111.1111MΩ。
该型电阻箱主要在直流电桥电路中用于精确测定待测电阻，也可以用于校正普通3~4位精度的万用表，校正各类兆欧表。