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数字显示的读数精确,模拟曲线的形象直观,二者结合能取长补短相得益彰,且便于利用微机扩展功能,是显示仪表的发展方向. 国外的数模混合记录仪,从原理到结构都比较复杂.如能在国产自动平衡式仪表的基础上稍加改进,增添数字显示,将赋予这类常规模拟式仪表以新的生命力,便于向智能化开发。本文介绍一种简易方法,只需加工少量机械部件,与简单的数字电路配合,便可构成数模混合自动平衡仪表,同时取消了难以维护的滑线电阻.
Digital display of accurate readings, visual analogue image intuitive combination of the two complement each other to complement each other, and facilitate the use of computer extensions, is to display the instrument’s development direction. Foreign digital-analog hybrid recorder, from the principle to the structure are more complex, such as Able to improve on the basis of domestic self-balancing instruments, adding digital display, will give these conventional analog instruments with new vitality, easy to intelligent development. This article presents an easy way to create a D / B Hybrid Balancing Meter with fewer mechanical parts and a simple digital circuit while eliminating the slip resistance that is difficult to maintain.