计算机与数字工程2017，Vol.45Issue(9)：1874-1877,4.DOI:10.3969/j.issn.1672-9722.2017.09.039
基于STC89C52单片机的pH值测量仪设计
Design of pH Measure Instrument Based on STC89C52 Microcontrollers
摘要
Abstract
In order to increase the measuring accuracy of pH value,and overcome the errors from some factors,such as the temperature variation of solution,the ageing of electrode and the stability of measurement circuit etc. the pH measure instrument was designed based on STC89C52 microcontrollers aiming at the disadvantages of low accuracy,complex circuit and poor stability of the pH measuring instrument. It used the pH sensor,A/D converter and microcontrollers to acquire,convert and process the de?tection signal of pH electrode. Then it output the measured pH after temperature compensation using LCD 1602. The test results showed that the instrument can measure the pH value of the solutions accurately,it met the design requirements. The instrument had the advantages of high precision,low cost,good stability,simple circuit and convenient operation,and it had a promotion of val?ue in the applications.关键词
STC89C52单片机/pH测量/标定/温度补偿Key words
STC89C52 microcontrollers/pH measurement/calibration/temperature compensation分类
信息技术与安全科学引用本文复制引用
林关成..基于STC89C52单片机的pH值测量仪设计[J].计算机与数字工程,2017,45(9):1874-1877,4.基金项目
国家自然科学基金项目(编号:11574250) （编号:11574250）
陕西省军民融合研究基金项目(编号:17JMR23) （编号:17JMR23）
渭南市自然科学研究计划基金项目(编号:2016KYJ-3-1) （编号:2016KYJ-3-1）
渭南师范学院科研计划基金项目资助. （）
