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热电偶经常用于过程控制系统作为温度传感器。这种元件的输出量是一种模拟量(几毫伏),但在输入到处理这些数据的微计算机之前应转变成数字量。Burr-Brown International公司设计的SDM858单件数字测量系统就是一种有能完成这类转换所必需电路的系统。热电偶具有摄氏零下数百度到零上数千度的工作
Thermocouples are often used in process control systems as temperature sensors. The output of this component is an analog (a few millivolts) but should be converted to digital before it is input to the microcomputer that processes the data. The SDM858 single-part digital measuring system designed by Burr-Brown International is a system that has the circuitry necessary to accomplish this type of conversion. Thermocouples have hundreds of degrees Celsius zero to thousands of degrees of work