湿敏共聚物的制备及其敏感元件的电特性研究  

Preparation of Copolymer Sensitive to Humidity and Study on Electric Properties of the Humidity Sensor Based on the Copolymer

作　　者：张彤[1] 孙良彦[1] 徐宝琨[1] 金玲玲 任辉[2] 林洪[3] 郝永德[3] 

机构地区：[1]吉林大学电子工程系,长春市130023 [2]吉林工业大学食品科学与工程系,长春市130025 [3]沈阳仪器仪表工艺研究所

出　　处：《仪表技术与传感器》2000年第8期13-15,共3页Instrument Technique and Sensor

基　　金：国家"九五"传感器攻关项目

摘　　要：利用接枝共聚反应合成了对湿度敏感的高分子材料 ,基于该共聚物制成的电阻式湿度传感器在全湿量程范围内 ,阻抗值变化了 3个数量级 ,响应时间小于 5s .对元件的湿敏特性、电压特性、频率特性、温度特性以及交流特性进行了测试 ,对其敏感机理进行了分析。The copolymer sensitive to humidity is obtained by graft polymerization reaction. The resistance-type humidity sensor based on the copolymer material has been fabricated. The impedance of the humidity sensor forms three orders of magnitude when humidity changes from low to high,with the response time not excessing 5 second. We have also tested humidity sensing characteristic, voltage characteristic, frequency characteristic, temperature characteristic and altering current properties. The sensing mechanism has been discussed as well in this papre.

关 键 词：复阻抗 湿敏共聚物 制备 敏感元件 电特性 

分 类 号：TH765.51[机械工程—仪器科学与技术] TP212.04[机械工程—精密仪器及机械]