半导体陶瓷湿度变送器线性电路的设计  

The design of semiconductor ceramic moisture transmitter linear circuit

作　　者：杨小玲[1] 

机构地区：[1]福州大学电子科学与应用物理系,福建福州350002

出　　处：《福州大学学报（自然科学版）》2003年第5期525-528,共4页Journal of Fuzhou University(Natural Science Edition)

摘　　要：分析半导体陶瓷湿敏电阻的阻值特性,采用湿敏电阻并联等效电路进行湿度线性化设计,利用函数极值分析法找出等效湿度信号曲线的最佳线性湿区及其实现条件,给出具体的设计实例.最后提出扩展线性范围的一种方法.Analysed the resistance characteristic of semiconductor ceramic moisture-sensor, and designed moisture linearization by moisture sensor parallel equivalent circuit. By using the functional extremum analyzing method, the optimal linear moisture area and its realizating conditions of equivalent moisture signal curve have been found out, and some design examples were demonstrated as well. At last, a method of extending its linear area was presented.

关 键 词：电路 半导体 湿敏电阻 变送器 设计 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]