摘要
在介绍电导率检测仪工作原理的基础上,给出了仪器的总体结构。重点描述了基于AT89C2051单片机、ICL7135A/D转换芯片的硬件平台,以及使用交流电源减小极化误差和通过温度补偿提高测量精确度的设计思想。
This paper presents the working principle of an electric conductivity detector and describes the hardware bench based on the AT89C2051 single-chip computer and the ICL7135A/D converter. It also gives out the temperature compensation technique and the use of AD power, which can help to improve the measuring accuracy.
出处
《工业仪表与自动化装置》
2006年第2期39-41,共3页
Industrial Instrumentation & Automation
关键词
水质检测
电导率
单片机
A/D转换
sewage detector
electric-conductivity
single-chip computer
A/D converter
