大棚远距离数字显示测温控温仪的研制  

Digital Display Equipment for Long Distance Monitoring and Controlling Temperature of Greenhouse

作　　者：张启勃[1] 郎仲武[1] 潘凤芝[1] 刘华 

机构地区：[1]吉林农业大学工程技术学院

出　　处：《吉林农业大学学报》1999年第1期80-82,共3页Journal of Jilin Agricultural University

摘　　要：大棚温室远距离测温控温仪由ＡＤ５９０做感温元件，运算放大器组成放大电路，用数字电压表实现温度的数字显示。该仪器在０℃～５０℃温度范围内进行了试验，其测温和控温误差≤±１℃。AD590 is taken for tempreature sensor, amplified circuit is composed of operational amplifier and digital display of temperature is accomplished by digital voltmeter for long distance monitoring and controlling temperature of greenhouse. The equipment is known that the error of monitoring and controlling temperature is not exceed 1 within 0℃～50℃. Long distance is realized in the range of 1000 meter.

关 键 词：大棚 测温控温仪 工作原理 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]