Research on flow control of gas detecting system for porphyrin sensor

LUO Jun

doi:10.13873/j.1000-97872012.06.036

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Research on flow control of gas detecting system for porphyrin sensor

更新时间：2025-09-11

- Research on flow control of gas detecting system for porphyrin sensor
- Vol. 31, Issue 6, Pages: 73-75+82(2012)
- 作者机构：
  
  重庆大学生物工程学院
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872012.06.036
  CLC： TP212.2
- Published：2012
- 稿件说明：
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[1]罗军.卟啉传感器气体检测系统流量控制研究[J].传感器与微系统,2012,31(06):73-75+82.

LUO Jun. Research on flow control of gas detecting system for porphyrin sensor[J]. 2012, 31(6): 73-75+82.
[1]罗军.卟啉传感器气体检测系统流量控制研究[J].传感器与微系统,2012,31(06):73-75+82. DOI： 10.13873/j.1000-97872012.06.036.

LUO Jun. Research on flow control of gas detecting system for porphyrin sensor[J]. 2012, 31(6): 73-75+82. DOI： 10.13873/j.1000-97872012.06.036.

摘要

针对目前卟啉传感器气体检测系统中采样气体流量控制的不足

提出了一种控制精度高、响应速度快、超调量小的流量控制系统。该系统利用增量式PID算法调整PWM脉冲信号的占空比

从而间接地改变直流电机两端电枢电压的大小

实现对采样气体流量的控制。流量控制精度为±1.5 cm3/min

且气体流量仅需15.6 s就能达到稳定。实验结果表明:控制采样气体流量

有助于卟啉传感器气体检测系统准确、快速地实现对目标气体的检测。

Abstract

Aiming at the deficiency of current sampling gas flow control for porphyrin sensor gas detecting system

a flow control system with high precision

fast response and small overshoot is presented.The system adjusts the duty ratio of PWM pulse signal using increment PID algorithm

then it can change the amplitude of armature voltage for DC motor indirectly

so it can control sampling gas flow.The flow control precision is ±1.5 cm3/min

and gas flow can reach stability only in 15.6s with the help of the flow control system.The experimental results show that flow control of sampling gas is helpful to detect target gases accurately and quickly for the porphyrin sensor gas detection system.

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references

自动控制原理[M]. 科学出版社 , 田玉平,蒋珉,李世华编著, 2006

控制系统计算机辅助设计[M]. 清华大学出版社 , 薛定宇著, 2006

新型PID控制及其应用[M]. 机械工业出版社 , 陶永华等编著, 1998

电力拖动自动控制系统[M]. 机械工业出版社 , 陈伯时主编, 1992

Coexisting intraligand fluorescence and phosphorescence of hafnium（IV） and thorium（IV） porphyrin complexes in solution [J] . Inorganic Chemistry Communications . 2002 (11)

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