论文部分内容阅读
本文介绍用对接差值法检验直流电位计(以下简称电位计)的方法。图1是用0.03级电位计(UJ9型或ППТВ—1型)作标准来检验被检电位计的整个测量线路图。标准电位计按元件自检后得出更正值,利用一台低电势电位计(也可用测差装置),对标准电位计进行更正值补偿。利用一个测差装置进行零电位补偿,一个多量限的测差装置测量被检电位计的误差,可直读更正值。由于UJ9或ППТВ—1型电位计的量限较低(最大1.2伏),当被检电位计量限大于为1.2伏,利用扩大量限装置,使标准电位计量限增大为2.2伏,这些装置可利用一般元件进行组装,实践证明,这些措施对保证检验精度和提高工作效率起到一定作用。(图1中的电位器即电位计)
This article describes the use of docking difference method to test DC potentiometer (hereinafter referred to as potentiometer) method. Figure 1 is a 0.03-level potentiometer (UJ9 or ППТВ-1 type) as a standard to test the potentiometer was seized the entire measurement circuit. Standard potentiometer by component self-test to be corrected, the use of a low potential potentiometer (also available difference device), the standard potentiometer correction to compensate. The use of a measuring device for zero potential compensation, a large number of limited tolerance measuring device was seized the error of the potentiometer can be directly read the correction value. Due to the low (up to 1.2 volt) limit of the UJ9 or ППТВ-1 potentiometer, the potential limit is increased by up to 2.2 volts with a metered potential limit greater than 1.2 volts, General components can be used for assembly, the practice proved that these measures to ensure the accuracy of inspection and improve work efficiency play a role. (Potentiometer in Figure 1 that is potentiometer)