摘要
介绍了基于BB公司的集成芯片变送器XTR-105的铂电阻温度传感器的温湿度测量系统。由于使用SOC单片机C8051F020进行信号的采样、放大及A/D转换,得到相关的干湿球温度,然后进行查表运算得到相对湿度。该温湿度测量系统具有结构简单、可靠性高、调试方便、测温范围广、精度高、可远距离传输等优点。
This article presents a temperature ＆ humidity measurement system by adopting temperature transducer Pt100 and current transmitter with sensor excitation and linearization circuit XTR105. Using SOC type MCU C8051F020 to do analog signals sampling,amplify and A/D converting,then get the dry/humid-ball temperature and find result value of relative humidity via table and mathematic calculation. This temperature ＆ humidity measurement system has following advantages：simple construction,high reliability,wide temperature measurement range and high precision,good ability of long-distance transmission and it is easy to use.
出处
《自动化与仪表》
2006年第6期20-23,共4页
Automation & Instrumentation
