恒温差系统自控电路的设计  

The Designation of Autocontrol Circuit for Constant Temperature Difference System

作　　者：傅和平[1] 

机构地区：[1]洛阳师范学院,河南洛阳471022

出　　处：《电气自动化》2008年第3期72-74,共3页Electrical Automation

基　　金：河南省高等教育教学改革项目基金资助;见河南省教育厅教高[2006]102号文件

摘　　要：为了实现某些科学实验中所需的理想恒温差系统,采用集成电路和极少的分立元件,设计了一个可将实时温差系统自动变为理想恒温差系统的控制电路。该自动控制电路由实时温差测量、理想恒温差预置及显示、比较等电路组成。该自控电路适用于实时温差比可设的最大理想温差小的场合,其误差精度为1℃。In order to achieve the required system of the ideal constant temperature difference in certain scientific experiments, we adopted the integrated circuit and the minimal discrete components to design a control circuit that can automatically turn the system of real-time tem- perature difference temperature into the ideal one. The automatic circuit, whose accuracy of error is one temperature centigrade, is composed of the circuit of measurement of the real-time temperature difference, the preset and the display of ideal constant temperature difference, and the circuit of comparison and so on. It can be applied to the occasion in which the real-time temperature difference is lower than the maximum of initialized ideal temperature difference.

关 键 词：理想温差(△T) 实时温差(ΔT) 自控电路 

分 类 号：TM924[电气工程—电力电子与电力传动]