半导体气敏元件的温度补偿网络设计  

Design of temperature compensation network of semiconductor gas sensitive element

作　　者：夏星欣[1] 戴瑜兴[1] 

机构地区：[1]湖南大学电气与信息工程学院,湖南长沙410082

出　　处：《传感器技术》2005年第10期54-56,共3页Journal of Transducer Technology

基　　金：湖南省科技攻关项目[03JKY3127]

摘　　要：针对半导体气敏元件的温度漂移问题,以TGS2611型半导体气敏元件为代表,分析其温度特性,给出了温度补偿的热敏电阻网络结构及其补偿方法,通过分析与实验表明:所给出的温度补偿方法在0～30 ℃之间几乎实现了完全补偿,而在高温区补偿效果也较好,可以有效地抑制气体报警浓度随温度的漂移,补偿误差不超过0.5 %LEL,从而有效地提高了探测器的温度稳定性.According to the temperature shift of gas sensitive element, on behalf of TGS2611 semiconductor gas sensitive element, its temperature characteristic is analyzed. A structure and a method of thermal resistor network with temperature compensation are introduced. The analysis of the network and the results of experiments indicate that all compensation can be implemented at 0 ～ 30 ℃, and compensation effect is good at high temperature. This method can restrain temperature drift along with gas alarm concentration chang effectively, compensation error is not over 0.5% LEL, and the temperature stability of gas detectors is improved.

关 键 词：半导体气敏元件 温度补偿 热敏电阻网络 爆炸不限 

分 类 号：TN377[电子电信—物理电子学]