陶瓷电容式智能压力变送器  

Intelligent Ceramic Capacity Pressure Transducer

作　　者：李鹏[1] 李民强[1] 

机构地区：[1]中国科学院合肥智能机械研究所

出　　处：《仪表技术与传感器》2007年第5期3-4,共2页Instrument Technique and Sensor

基　　金：安徽省科技攻关项目(040120503)

摘　　要：设计了一种基于MSP430F447的智能型陶瓷电容式压力变送器,给出了其信号获取装置(双电容陶瓷压力传感器)的制备原理、信号调理电路的设计以及单片机软件程序设计。其中,软件程序主要解决了非线性补偿和温度补偿问题,提高了系统测量精度。实验结果表明:研制的变送器线性误差小于0.42%,迟滞误差小于0.48%,零点温漂系数低于2.4×10-4mA/℃.The intelligent pressure transmitter based on dual-capacity ceramic pressure sensor and MSP430F447 was designed. The basic principle,fabric design,manufacturing technique and performance test of dual-capacity pressure-sensitive component were described in detail. Experimental results indicate that the sensor has many merits such as： the non-linearity error and hysteresis error are within 0.42% and 0.48% ,the coefficient of temperature drift is under 2.4 × 10^-4mA/℃.

关 键 词：陶瓷电容 智能 压力变送器 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]