| 一种智能在线pH检测仪 |
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| 引用本文： | 刘海,杨慧中.一种智能在线pH检测仪[J].江南大学学报(自然科学版),2012,11(2):173-177. |
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| 作者姓名： | 刘海 杨慧中 |
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| 作者单位： | 江南大学轻工过程先进控制教育部重点实验室,江苏无锡,214122 |
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| 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.
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| 关 键 词： | 单片机 Nernst方程 pH检测仪 校正 虚拟仪器 |
An Intelligent Online pH Detector |
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| LIU Hai
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YANG Hui-zhong.An Intelligent Online pH Detector[J].Journal of Southern Yangtze University:Natural Science Edition,2012,11(2):173-177. |
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| Authors: | LIU Hai YANG Hui-zhong |
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| Institution: | (Key Laboratory of Advanced Process Control for Light Industry,Ministry of Education,Jiangnan University,Wuxi 214122,China) |
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| Abstract: | 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. |
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| Keywords: | microcontroller Nernst equation pH detector calibration LabVIEW |
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