TJ1型标准电池比较仪,是用直读差值替代法检定标准电池的专用仪器。它的性能比用一台低电势电位差计和一个简化电位差计所组成的自搭差值替代法装置优越,现分析比较如下。一、自搭线路的直读差值替代法分析白搭的直读差值替代法线路如图1, TJ1-type standard battery comparator, is a direct-read difference instead of standard method of testing the battery-specific equipment. Its performance than with a low potential potentiometer and a simplified potentiometer consists of self-tolerance difference surrogate device superior, the analysis is as follows. First, take the line from the direct-reading difference method to take an alternative analysis of the direct-read difference alternative method line in Figure 1,