Abstract
Aiming at the problems of low control precision and slow response speed of the existing food drying equipment thermostatic control system, this paper presents and designs a kind of food drying equipment thermostatic control system based on platinum resistance as temperature sensing device and hardware closed-loop control circuit for constant temperature control. The test results show that the constant temperature error of the system is within ±0.1 ℃, and the average response time of constant temperature is 4 min 56 s, which can effectively improve the system constant temperature control accuracy and response speed.
Publication Date
7-28-2020
First Page
104
Last Page
108
DOI
10.13652/j.issn.1003-5788.2020.07.021
Recommended Citation
Wang, SHU and Guang-wei, CHEN
(2020)
"A thermostatic control system for food drying equipment based on platinum resistance and hardware closed-loop control,"
Food and Machinery: Vol. 36:
Iss.
7, Article 21.
DOI: 10.13652/j.issn.1003-5788.2020.07.021
Available at:
https://www.ifoodmm.cn/journal/vol36/iss7/21
References
[1] 王萌.食品加工智能恒温控制系统设计[J].食品工业,2019,40(12):219-222.
[2] 武新,李光林,廖金权.QPQ氮化盐分析仪恒温控制系统的设计与实验[J].仪表技术与传感器,2019(10):25-29.
[3] 王银玲,孙涛.基于单片机的恒温箱控制系统设计[J].农机化研究,2011,33(9):103-106.
[4] 蔡有杰,吴志东,王雪峰,等.顺流式玉米烘干塔温度控制系统开发与改进[J].食品与机械,2017,33(2):85-89.
[5] 林凯,李迪.一种三线制铂电阻温度传感器信号调理电路设计[J].信息通信,2017(4):67-68.
[6] 周鹏程,王志.基于铂电阻多测点温度测量系统及其应用[J].传感器与微系统,2019,38(6):158-160.
[7] 顾吉林,刘淼,耿杨,等.基于PT100的高精度温度测量电路的设计[J].测控技术,2018,37(5):101-103.
[8] 霍钰,王功.基于铂热电阻的高温检测系统设计与优化[J].传感器与微系统,2019,38(4):108-110.
[9] 党向婷,肖军.基于恒流源激励的PT100测温电路在锅炉控制系统中的应用与研究[J].电子设计工程,2019,27(5):77-80,85.