【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℃。仪器可在１０００ｍ范围内实现远距离监控更多还原

【Abstract】 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.更多还原