中国科学院上海硅酸盐研究所,上海 201800
钟秋(1982—),男,博士,副研究员,zhongqiu@mail.sic.ac.cn
杨莉萍(1976—),女,博士,研究员,lpyang@mail.sic.ac.cn
收稿:2019-05-21,
修回:2019-06-20,
纸质出版:2019-09-05
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钟秋, 杨莉萍, 陶冶, 雒彩云, 徐子君, 汪文兵. 磁环境温度测量信号偏差实验研究[J]. 化工学报, 2019, 70(S2): 349-355
ZHONG Qiu, YANG Liping, TAO Ye, LUO Caiyun, XU Zijun, WANG Wenbing. Experimental study on temperature signal difference under high intensity magnetic field[J]. CIESC Journal, 2019, 70(S2): 349-355
钟秋, 杨莉萍, 陶冶, 雒彩云, 徐子君, 汪文兵. 磁环境温度测量信号偏差实验研究[J]. 化工学报, 2019, 70(S2): 349-355 DOI: 10.11949/0438-1157.20190545.
ZHONG Qiu, YANG Liping, TAO Ye, LUO Caiyun, XU Zijun, WANG Wenbing. Experimental study on temperature signal difference under high intensity magnetic field[J]. CIESC Journal, 2019, 70(S2): 349-355 DOI: 10.11949/0438-1157.20190545.
由于磁致电阻效应的存在,使得测温器件的信号在磁环境中会产生偏差,而准确的温度测量结果是材料制备或者磁环境下材料特性测量的基础。针对这一问题,对E型铠装热电偶和铠装Pt100铂电阻3种测温元件,在0~5 T磁场环境中,-190~700℃温度范围的测温信号的偏差进行了实验研究。结果显示,2种器件的温度信号的整体趋势是随着磁场强度的上升而升高的,但是随着功率的增加,磁场变化引起的温度偏差逐渐减小,同时,升温速率与不同磁环境温差之间存在二次曲线关系。为今后磁环境下温度信号的校正技术提供了基础的数据支持和理论指导。
Due to the magnetoresistance effect
the temperature signal was different from the real one under high intensity magnetic field. Accurate temperature measurement is the key for preparation of materials or the measurement of material properties under magnetic environment. In this work
the temperature signal of E-type thermocouple and a PT100 platinum resistor were measured
with temperature range from -190℃ to 700℃ and magnetic field range from 0 to 5 T. The results show that
the temperature signal increases with magnetic field intensity increasing. However
the difference of temperature signal decreased with increasing heat power. Furthermore
the temperature rate was curve relation with temperature difference under different magnetic field.
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