高分子湿度传感器特性漂移及非线性修正  

A Characteristic drift and nonlinear reparation of polymer humidity sensor

作　　者：江玉飞 梁汉昌 Jiang Yufei;Liang Hanchang(Zhaoqing chemical machinery plant,guang dong,Zhaoqing Guangdong,526020;Guangdong Zhaoqing technician Institute,Zhaoqing Guangdong,526020)

机构地区：[1]广东省肇庆化工机械厂,广东肇庆526020 [2]广东省肇庆市技师学院,广东肇庆526020

出　　处：《电子测试》2018年第20期44-45,共2页Electronic Test

摘　　要：高分子湿敏膜没有亲水基和生成氢键,对水分子不发生化学吸附,且在低湿氛围的离散性、参数漂移及疲劳失效率较低,但其零点漂移较大、低湿响应特性呈非线性仍一直困扰着其可靠性。一种通过前期老化及单片机插值运算处理法,令湿度传感器的特性参数都实时回归,可大幅度提高其对低湿空气露点检测的准确度和长期稳定性。The high polymer wet sensitive film has no hydrophilic base and hydrogen bond,has no chemical adsorption on water molecules,and has low dispersion in low humidity atmosphere,parameter drift and fatigue failure efficiency.A method based on pre-aging and interpolation processing of single chip computer,which can make the nonlinear response and characteristic curve drift of humidity sensor return in real time,can greatly improve the accuracy and long-term stability of the detection of low humidity air dew point.

关 键 词：湿度 传感器 漂移 非线性 老化 插值 修复 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]