基于K型热电偶温度传感器的测温系统研究  

Research on temperature measurement system based on K-type thermocouple temperature sensor

作　　者：杜林颖 于鸿彬[1] 王磊[2] DU Linying;YU Hongbin;WANG Lei(School of Mechanical Engineering,Tianjin Polytechnic University,Tianjin 300387,China;School of Mechanical Engineering,Tianjin University,Tianjin 300072,China)

机构地区：[1]天津工业大学机械工程学院,天津300387 [2]天津大学机械工程学院,天津300072

出　　处：《现代电子技术》2019年第14期36-40,共5页Modern Electronics Technique

基　　金：民航重大专项(MHRD20140110);国家重点研发计划(2016YFB1102003)~~

摘　　要：在飞机热交换器健康状态检测采集温度时,对于精确性和便捷无线传输要求的问题,建立一个利用K型热电偶温度传感器进行温度采集的系统。该系统将采集到的数据通过WiFi进行传输,并利用静态校准和数据拟合的方法提高测量精度。系统结合上位机,可实现在远离恶劣的实际工作环境下完成温度的实时采集、保存、分析和历史查询。实验结果表明,该系统不仅成本低、易操作,而且经过静态校准和数据拟合之后,传感器测量精度能够控制在0.5 ℃以内,可实现较精确的温度采集。In allusion to the requirements of accuracy and convenient wireless transmission during the temperature acquisi tion for health state detection of the aircraft′s heat exchanger,a system for temperature acquisition using a K type thermocouple sensor is built. In the system,the collected data is transmitted via WiFi. The static calibration and data fitting methods are used to improve the measurement accuracy. The system in combination with the upper computer can realize real time collection,stor age,analysis and historical query of the temperature far away from the harsh practical working environment. The experimental re sults show that the system is low cost,and easy to operate with its sensor measurement accuracy controlled within 0.5 ℃ after static calibration and data fitting,w hich can achieve accurate temperature acquisition.

关 键 词：状态检测 K型热电偶 温度传感器 WiFi传输 静态校准 数据拟合 

分 类 号：TN373.34[电子电信—物理电子学] TP368[自动化与计算机技术—计算机系统结构]