传感技术学报2017，Vol.30Issue(12)：1828-1833,6.DOI:10.3969/j.issn.1004-1699.2017.12.008
基于STM32的重金属离子测量仪器的设计与试验
Design and Test of Heavy Metal Ion Detection Instrument Based on STM32
摘要
Abstract
An instrument based on STM32 chip for detecting heavy metal with ion selective electrode is designed. The signal processing circuit of ion selective electrode and PT1000 temperature measurement circuit is analyzed in detail. According to the data of Ag ion electrode potential and least square method,the 5 points calibration model is used for-linear fitting. The response potential curve of Cd ion electrode is recorded continuously, and Maximum difference method is used to determine the stability. Finally tests are carried out,the results show that the model and algorithm can meet the requirements of the general measurement,and could provide a reference for other design.关键词
离子选择性电极/测温电路/5点校准模型/最值差值法Key words
ion selective electrode/temperature measurement circuit/5 points calibration model/Maximum difference methdo分类
信息技术与安全科学引用本文复制引用
魏光华,赵学亮,李康,张建伟,史云..基于STM32的重金属离子测量仪器的设计与试验[J].传感技术学报,2017,30(12):1828-1833,6.基金项目
国土资源部水工环地质调查项目(DD20160253) （DD20160253）
