摘要
基于STC89C52微控制器设计了一种智能在线pH检测仪,它具有高输入阻抗的pH值信号放大电路、高精度温度测量电路和AD转换电路,并依据pH值的测量原理Nernst方程对pH值进行校正,通过LabVIEW实现数据的采集,分析和显示功能。本检测仪可以实现自动温度补偿、历史数据的存储、自动三点校正、实时数据传输等功能.
This paper designs an intelligent online pH detector based on the STC89C52 micro controller.The pH detector is consisted of a high input resistance amplifier circuit,a high precision temperature measurement circuit and AD convertor.The circuit can automatically adjust pH value according to Nernst equation,and realize data collection,analysis and display with LabVIEW.The instrument has the functions for the automatic compensation of temperature,historical data storage,automatic three point correction,real-time data transmission.
出处
《江南大学学报(自然科学版)》
CAS
2012年第2期173-177,共5页
Joural of Jiangnan University (Natural Science Edition)