摘要
针对水银温度计测量精度低、易损坏,以及工业测温系统中常出现电压信号损失、噪声干扰和外围电路复杂等问题,利用电流输出型集成温度传感器AD590和集成芯片GC7140C设计了一种数字显示温度计,避免了电压信号损失,其外围电路简单,测量范围宽,分辨率可达0.1℃。
Mercury thermometer is low in accuracy,and easy to damage.What′s more,there are voltage signal loss,noise interference,complex peripheral circuits and other problems in industrial temperature measurement system.Aiming at these issues,a digital thermometer was designed with an integrated temperature sensor AD590 and integrated chip GC7140C.The test results showed that the digital thermometer had the advantages of simple circuit and wide measuring range.And its resolution can reach to 0.1 ℃.
出处
《武汉理工大学学报（信息与管理工程版）》
CAS
2010年第6期904-906,共3页
Journal of Wuhan University of Technology：Information & Management Engineering
