论文部分内容阅读
一、前言当前国内电度表的检定多采用标准电度表法进行直观比对,可是由于视差、标准量具误差、启停误差、台体误差等因素,其综合误差难于达到GB3924-83的规定。本文介绍的装置,采用了单板机作为控制和运算手段以及采用了信号的光电变换,用1组标准表可同时检定8台单相或三相被检电度表,提高工作效率10倍,减轻了劳动强度,完全满足GB3924-83的要求。二、装置的组成整个装置由校验台与控制台两部分组成,这里只讨论控制台,它的方框图见图1。 1.光电变换电路
I. Introduction At present, the verification of the domestic watthour meter adopts the intuitive comparison of the standard watthour meter method. However, due to factors such as parallax, standard measuring error, start-stop error, and body error, the comprehensive error is difficult to meet the requirements of GB3924-83 . This article describes the device, the use of single-board computer as a means of control and computing and the use of the photoelectric conversion signal with a standard set of tables can be simultaneously verified 8 single-phase or three-phase was seized meter to improve work efficiency 10 times, Reduce the labor intensity, fully meet the requirements of GB3924-83. Second, the device’s composition The entire device by the checkout and console composed of two parts, only to discuss the console here, and its block diagram shown in Figure 1. 1. Photoelectric conversion circuit