论文部分内容阅读
在用标准表对被检表进行示值检定时,如果读数方法选取不当,将增大人为造成的视觉误差。本文就此问题分析如下: 1.标准表与被检表都是模拟显示。模拟显示的标准表与模拟显示的被检表相比,在相同量程的条件下,前者标尺上的分度线较后者密。因此,当仪表指针并非刚好指在分度线上时,我们读取的标准表的示值一定比读取的被检表的示值更接近于真值,即标准表给我们造成的视觉误差比被检表造成的视觉误
In the use of standard tables on the checklist for indication verification, if the reading method is not properly selected, will increase the visual error caused by human. This article analyzes the problem as follows: 1. Standard table and the seized table are simulated display. Compared with the simulated test table, the standard table displayed by simulation shows that the index line on the former scale is more dense than the latter under the same range conditions. Therefore, when the meter pointer is not exactly on the index line, the standard value of the standard meter we read must be closer to the true value than the one we read, that is, the visual error caused by the standard meter Than the seized table caused by visual error