一种可编程数字温度计的设计

Design of Programable Digital Thermometer

分析由数字温度传感器SWC和模拟集成电路NE555,MC14553,MC14511等实现的数字温度计存在的不足,用AT89C2051单片机完成控制和显示,设计一种可编程、测温速度快的数字温度计。该电路设计方法简单,经调试可实现自动测温等3种模式的切换,可以适用于不同的测量要求,并且测量稳定性和可靠性也得到了一定的提高。

This paper points out the disadvantage of the digital thermometer which based on the integrated circuit such as the SWC, NE555, MC14553, MC14511 and so on,a programmable and fast measurement digital thermometer is designed which the signal chip microcomputer AT89C2051 has completed to control and display. The circuit is simple,the test shows the circuit has the mode to measure automatically,adapt to different demands. The stability and veracity are impreved.