A Dynamic Calibration System of Thermocouple Sensor Based on High Temperature Furnace

被引：0

作者：

Zhang, Zhijie ^{[1
,2
,3
]}

Li, Yanfeng ^{[3
]}

机构：

[1] North Univ China, Minist Educ, Key Lab Instrumentat Sci & Dynam, Taiyuan, Peoples R China

[2] North Univ China, Ctr Shanxi Prov, Automat Test Equipment & System Engn Res, Taiyuan, Peoples R China

[3] North Univ China, Sch Instrument & Elect, Taiyuan, Peoples R China

来源：

2018 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE (I2MTC): DISCOVERING NEW HORIZONS IN INSTRUMENTATION AND MEASUREMENT | 2018年

基金：

中国国家自然科学基金;

关键词：

dynamic temperature measurement; thermocouple sensor; dynamic calibration; time constant;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In the field of dynamic temperature measurement, the dynamic characteristics of sensors are critical and should meet test requirements. Thermocouples are widely used for temperature measurement in the harsh conditions due to their low cost, robustness and reliability. But there is a dynamic error in the dynamic temperature measurement, because of the presence of the thermal inertia. So it is important to dynamically calibrate the thermocouples and understand their dynamic characteristics. In this paper, based on the analysis of step and ramp excitation signal, a variety of dynamic calibration methods of thermocouples were introduced. The dynamic calibration system of thermocouple sensor based on high temperature furnace was established, and the dynamic calibration experiment of a bare thermocouple was done. The time constant of the thermocouple was obtained, and its estimation error is less than 1%.

引用

页码：1854 / 1858

页数：5

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