【摘要】 本文介■一种用AD590作为感温元件,组成干湿球温度表,经7650运算放大器放大与微机配合,构成一个多路的温、湿度自动检测系统。它具有价格低廉,体积小,测量精度高,稳定性好,能进行远距离测量,易于多路化等特点。更多还原

【Abstract】 In this paper, a automatic temperature and humidity testing system is given. This system was constructed by the temperature sensor ADS90 which was used as dry-bulb and wet bulb thermometer, the operational amplifier ICL 7650 and the single-board-computer. It lows the price, minimizes the volume, gains the measure accuracy and stability, and also makes far-away measure possible and many-channals measure easy.更多还原