摘要
本文介绍了一种采用全数字式脉宽调制（PWM）技术的温度压力测控仪的设计要点，包括一种新颖的电压脉宽转换器、PWM控制输出接口、软件智能控制算法等的原理及设计。该仪器具有学习与自修正功能，使用中无需人工调节控制参数，经过长期运行表明，该仪器具有很好的测控精度和很高的可靠性。
The author describes the key technology of designing a temperature acquistion and control instrument, including princples of an A/D converter and a controlled output based on pulse-width-modulation, intelligent control algorithm. Experimental results show that the instrument contains the features of easy operation, high precision and reliability.
出处
《电子测量与仪器学报》
CSCD
1998年第4期22-26,共5页
Journal of Electronic Measurement and Instrumentation
关键词
脉宽调制
数据采集
温度
压力
温度测控仪
Pulse-width-modulation
Intelligent control
Acquisition
Temperature
Pressure
