J4 ›› 2012, Vol. 25 ›› Issue (4): 73-77.doi: 10.3976/j.issn.1002-4026.2012.04.017

• 目录 • 上一篇    下一篇

基于PIC18F2520的极谱式溶解氧传感器设计

吕斌,雷卓,刘杰,曲君乐   

  1. 山东省海洋环境监测技术重点实验室,山东省科学院海洋仪器仪表研究所,山东 青岛 266001
  • 收稿日期:2012-03-27 出版日期:2012-08-20 发布日期:2012-08-20
  • 作者简介:吕斌(1980-),男,助理研究员,硕士,主要研究方向为单片机及嵌入式系统、深远海探测技术。
  • 基金资助:

    海洋公益性行业科研专项经费项目(201205035)

Design of a PIC18F2520 based polarographic dissolved oxygen sensor

 LV Bin, LEI Zhuo, LIU Jie, QU Jun-Le   

  1. Shandong Provincial Key Laboratory of Ocean Environment Monitoring Technology, Institute of Oceanographic Instrumentation, Shandong Academy of Sciences, Qingdao 266001,China
  • Received:2012-03-27 Online:2012-08-20 Published:2012-08-20

摘要:

       采用覆膜极谱式溶解氧测量工作原理,以PIC18F2520为核心控制器设计了一种溶解氧传感器,并对传感器的温度、压力及盐度补偿算法进行了研究。试验证明,该设计结构简单、性能稳定,温度测量精度误差为±0.3 ℃,溶解氧测量精度误差为±0.07 mg/L。

关键词: 极谱式, 溶解氧传感器, PIC18F2520

Abstract:

       We designed a dissolved oxygen sensor with the principle of polarographic dissolved oxygen and PIC18F2520 as a core controller. We also addressed the compensation algorithm of a DO sensor in temperature, pressure and salinity. Experiments show that a DO sensor has such advantages of simple structure and stable performance, temperature accuracy of ±0.3 ℃ and DO accuracy of ±0.07 mg/L.

Key words: polarography, dissolved oxygen sensor, PIC18F2520

中图分类号: 

  • TP212.2