分布式热电阻温度采集系统设计  

Design of distributed thermal resistance temperature acquisition system

作　　者：马荣泽 刘振革 李洋 梁鹏飞 纪少波[1] 于泽庭[1] MA Rongze;LIU Zhen′ge;LI Yang;LIANG Pengfei;JI Shaobo;YU Zeting(College of Energy and Power Engineering, Shandong University,Jinan 250061,China;Shandong Technician Institute,Jinan 250200,China;Shanghai Marine Diesel Research Institute,Shanghai 201108,China)

机构地区：[1]山东大学能源与动力工程学院,山东济南250061 [2]山东技师学院,山东济南250200 [3]中船重工第七一一研究所,上海201108

出　　处：《山东交通学院学报》2020年第2期85-91,共7页Journal of Shandong Jiaotong University

基　　金：国家重点研发计划项目(面向重型载货车用燃料电池发动机集成与控制)。

摘　　要：基于MAX31865数字转换器设计一套嵌入式温度采集系统,实现热电阻温度传感器信号的采集。为减少引线电阻对测量结果的影响,采用三线制接线方式。热电阻信号经过数字转换器转换成数字信号,通过串行外设接口传送至单片机,实现温度的测量。该温度采集系统具备6路热电阻传感器信号采集、处理及显示功能。试验测试表明:开发的系统测量精度高,工作稳定可靠,满足使用要求。Based on the MAX31865 digital converter,an embedded temperature acquisition system is designed to collect the signal of the thermal resistance temperature sensor.In order to reduce the influence of lead resistance on the measurement results,three-wire is adopted.The thermal resistance signal is converted into digital signal through digital converter,and transmitted to MCU through SPI bus for temperature measurement.The developed system has the functions of signal acquisition,processing and display of 6 channel thermal resistance sensor.This system is verified by experiments,and the results show that it has high measurement accuracy,stable and reliable operation,and meets the requirements of use.

关 键 词：温度采集 嵌入式 三线制 数字信号 

分 类 号：TK407[动力工程及工程热物理—动力机械及工程]