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电子电位差计和电子平衡电桥是化工生产中用得比较广泛的仪表,而且大多数是应用多点检测及记录。为了考核检修后仪表的运转可靠性和机械部分的安装情况,我们自制了一种多点分压分阻箱的简易装置对仪表进行试运转,效果很好。多点分压分阻装置线路如图所示,它除可作试运转外,还可当作小信号(微伏、毫伏)发生器和可变电阻箱用。多点分压是利用一可调节的电流,通过
Electronic potentiometer and electronic balance bridge is widely used in chemical production instrumentation, and most are the application of multi-point detection and recording. In order to test the maintenance of instrument reliability and mechanical parts of the installation, we made a multi-point pressure-dividing boxes of simple devices to test the instrument commissioning, the effect is very good. Multi-point voltage divider blocking device line as shown, in addition to it for trial operation, but also as a small signal (micro-volts, millivolts) generator and variable resistance box. Multi-point voltage is the use of an adjustable current through