Research on dynamic error compensation for an armored K type thermocouple  

铠装K型热电偶动态响应误差补偿研究(英文)

作　　者：郝晓剑[1,2] 邢恩普[1,2] 昝清波 王恒飞[3] 周汉昌[1,2] 

机构地区：[1]中北大学电子测试技术重点实验室,山西太原030051 [2]中北大学仪器科学与动态测试教育部重点实验室,山西太原030051 [3]中国电子科技集团第四十一研究所,山东青岛266555

出　　处：《Journal of Measurement Science and Instrumentation》2014年第4期10-15,共6页测试科学与仪器（英文版）

基　　金：Research Project Supported by Shanxi Scholarship Council of China(No.2012-068);Taiyuan Science and Technology Agency(No.120247-20);Surface-temperature Sensor Dynamic Measurement and Calibration Technology Research of National Defense Fundamental Scientific Research

摘　　要：A new method was proposed, in which a high-power CO2 laser modulated by high frequency was used as the driv- ing source to heat up a surface-temperature sensor. The continual beam and the pulsed beam sent out by the same laser could be used in the same system to carry on the static calibration of the radiation thermometer and the dynamic calibration of the temperature sensor to be checked. The frequency-response characteristics of high-speed radiation thermometer surpassed that of the temperature sensor, therefore it could be used as the reference value to calibrate the latter and let system error be cor- rected. Differences in the environment of the sensor installing and the error caused by the change of thermo-physical proper- ty could be avoided. Thus, the difficult problem of traceable dynamic calibration of temperature was solved. In experiment, to obtain the frequency characteristics of the thermocouple and the dynamic performance of the K type thermocouple, which could compensate the dynamic characteristics of the sensor, the sensor was dynamically corrected by using the method, and then the mathematical model was established.

关 键 词：THERMOCOUPLE SURFACE-TEMPERATURE dynamic calibration error compensation TRACEABILITY 

分 类 号：TH811[机械工程—仪器科学与技术]