本文设计了一种实用新型计算机温度采集系统，采用AD590作温度传感器，ADC0809作模数转换器。该系统原理简单，结构紧凑，成本低廉，适用于需要多点测温的场合，广泛应用于工业生产和人们日常生活中，并显示出了经济、可靠的优越性。本文对系统中的各个组成部分的原理、功能、线路图、芯片的功能作了一个详细的介绍，测量误差符合系统所规定的要求。-Designed a utility model computer temperature acquisition system, using AD590 as a temperature sensor, ADC0809 for analog-to-digital converter. The principle of the system is simple, compact, low cost, applicable to multi-point temperature measurement occasions, are widely used in industrial production and people' s daily life, and shows the superiority of economic, reliable. In this paper, the principle of the various components of the system function, circuit diagrams, function of the chip made a detailed introduction to measurement error in line with the requirements specified by the system.