基于数字温度传感器的热电偶冷端补偿研究
Research on Cold Terminal Compensation of the Thermocouple Based on Digital Temperature Sensor
林燕虹 1杨成海 1李建国1
作者信息
- 1. 广东松山职业技术学院,广东韶关 512126
- 折叠
摘要
介绍热电偶的工作原理和冷端温度补偿,对比分析不同数字温度传感器的工作原理和特点,提出基于数字温度传感器实现热电偶冷端补偿的方法,解决了热电偶测温存在冷端温度变化大、测量数据非线性难处理、测量信号微弱及数字化输出须转换等问题,提高了测量准确度,简化了温度补偿电路.
Abstract
The principle of thermocouples and cold junction temperature compensation is introduced.The internal structure and characteristics of different digital temperature sensors are compared.Based on digital temperature sensors,the method of the cold terminal compensation of thermocouple using digital temperature sensors is proposed,which solves the problems of large cold junction temperature changes,non-linear and difficult processing of measurement data,weak measurement sig-nals,and digital output conversion in thermocouple temperature measurement,improves measurement accuracy,and sim-plifies temperature compensation circuits.
关键词
数字温度传感器/热电偶/冷端补偿Key words
digital temperature sensor/thermocouple/cold terminal compensation引用本文复制引用
基金项目
韶关市科技计划(2021)(210722024530101)
广东松山职业技术学院项目(2021)(2021KJYB005)
广东松山职业技术学院质量工程课题(2022)(2022JPKC09)
出版年
2024
NETL
NSTL
万方数据