[1]郝运涛,包晔峰,李振宇,等.恒温差工作方式热式流量传感器的研究[J].常州大学学报(自然科学版),2012,(03):66-69.
　HAO Yun-tao,BAO Ye-feng,LI Zhen-yu,et al.Research of Thermal Type Flow Sensor Based on the Constant Temperature Difference Method[J].Journal of Changzhou University(Natural Science Edition),2012,(03):66-69.
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恒温差工作方式热式流量传感器的研究()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2012年03期
页码:
66-69
栏目:
出版日期:
2012-06-01

文章信息/Info

Title:
Research of Thermal Type Flow Sensor Based on the Constant Temperature Difference Method
作者:
郝运涛; 包晔峰; 李振宇; 杨 可
河海大学 机电工程学院,江苏 常州 213022
Author(s):
HAO Yun-tao; BAO Ye-feng; LI Zhen-yu; YANG Ke
Mechanical and Electrical Engineering College, Hohai University, Changzhou 213022, China
关键词:
热式流量传感器;  温度补偿;  测量电桥;  电流调节
Keywords:
thermal type sensor;  temperature compensation;  measuringbridge;  current regulation circuit
分类号:
TB 937
文献标志码:
A
摘要:
分析了热式气体流量传感器的测量原理,根据热耗散理论,推导出了铂电阻传感探头加热电流与气体流量之间的函数关系,研究了基于恒温差工作方式传感器的测量电桥、信号调整和电流调节驱动电路的工作原理,设计了基于三极管基极-集电极的传感器电流调节电路和串并联式温度补偿电路,通过对电路的分析和试验,证明了该电路工作状态稳定,温度补偿效果良好,测试结果具有较好的一致性。
Abstract:
This paper analyzed the measuring principle of the thermal flow sensor, deduced the function between the heating current of the platinumresistance sensing probe and the gas flow under the theory of heat dissipation,researched the working principle of measuring bridge, signal adjustment and current drive of the sensor, designed the current regulation circuit based on thetransistor base-collector pole and sensor temperature compensation series-parallel circuit. The following research and experiments proved that the state of ciruit is steady, the compensation of temperature is good and the measurement is consistent.

参考文献/References:

[1]蔡武昌.热式质量流量计的应用[C]∥第四届工业仪表与自动化学术会议论文集.北京:中国仪器仪表学会,2001:258-268.
[2]常红梅.汽车发动机进气质量流量传感器[D].西安:长安大学,2007.
[3]Burnn H H.Hot-wire Anemometry:Principle and Signal Analysis[M].New York:Oxford University Press,1995:19-38.
[4]周作元,李荣先.温度与流体参数测量基础[M].北京: 清华大学出版社,1986.
[5]邹林.King公式法热线探头校正方法及计算程序[J].气动实验与测量控制,1988(1):82-84.
[6]李长武,梁国伟.汽车用热线式空气流量传感器[J].传感器技术,2004,23(8):38-40.

备注/Memo

备注/Memo:
作者简介:郝运涛(1986-),男,河北廊坊人,硕士生; 通讯联系人:包晔峰。
更新日期/Last Update: 2012-06-30