作者：李文涛，徐剑维
单位：内蒙古科技大学 信息工程学院，内蒙古包头 014010
中图分类号：TP216+.1      
文献标识码：A      
文章编号：1006-883X(2017)07-0026-05
收稿日期：2017-04-12

摘要：目前工业生产中要求对温度的测量能够面向多目标且及时、精确。为了满足这些要求，以FPGA（EP2C5Q208C8N）为核心设计了一种热电偶温度巡检仪，以K型热电偶作为测温传感器，并采用专用集成芯片MAX6675对K热电偶进行冷端温度补偿及线性化处理，利用Autium进行硬件电路绘制及PCB制作，并在QuatusII中进行了时序仿真，仿真波形验证了设计的正确性。将FPGA应用到热电偶温度巡检仪中使其测温过程更加精确迅速，及时的测温和反馈使得工业生产中的高温作业有了更高的保障。
关键词：热电偶；温度巡检仪；多通道测量；FPGA

Design of a FPGA-based thermocouple temperature data logging device
LI Wen-tao, XU Jian-wei
College of Information Engineering, Inner Mongolia University of Science and Technology, Baotou 014010,China
Abstract: The requirements of current industrial production for temperature measurement are multi-object-oriented, timely and accurate. In order to meet these requirements,  a thermocouple temperature data logging device is designed with FPGA (EP2C5Q208C8N) as the core, which uses K thermocouple as temperature sensor and MAX6675 chip for cold end temperature compensation and linearization of K thermocouple.  Autium software is used to make hardware circuits and complete PCB production, and timing sequence simulation is done in QuatusII. The simulation waveforms verify the correctness of the design. The application of FPGA in this system makes the temperature measurement more accurate and rapid, and timely temperature measurement and feedback make the high temperature operation in industrial production have higher protection.
Keywords: thermocouple; temperature data logging device; multichannel measurement; FPGA

备注：2017年 第23卷 第07期