磁环境温度测量信号偏差实验研究

doi:10.11949/0438-1157.20190545

摘要/Abstract

摘要：

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。

关键词: 差热分析仪, 温度测量, 强磁场, 热电偶, 铂电阻温度计, 校正技术

Abstract:

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.

Key words: differential scanning calorimeter, temperature measurement, high intensity magnetic field, thermocouple, platinum resistance thermometer, calibration technology

中图分类号:

O 353.5

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.

Qiu ZHONG,Liping YANG,Ye TAO,Caiyun LUO,Zijun XU,Wenbing WANG. Experimental study on temperature signal difference under high intensity magnetic field[J]. CIESC Journal, 2019, 70(S2): 349-355.

图/表 12

表1 本文选用的2种测温元件参数

Table 1 Temperature measurement element used in this work

参数	E型	Pt100
结构	铠装	铠装
正极	镍铬10合金	铂
负极	铜镍合金	铂
测温范围	-200~900℃	-200～850℃
直径	2 mm	2 mm
精度等级	Ⅱ级/B级	Ⅱ级/B级
允差范围	0.0075\|t\|	0.30+0.005\|t\|

图1 超导强磁场设备

Fig.1 High intensity magnetic field apparatus

图2 测温炉体模块

Fig.2 Schematic diagram of furnace body

表2 测量实验方案

Table 2 Experimental scheme

序号	目标温度/℃	测温炉体
1	~100	高温模块
2	~300	高温模块
3	~700	高温模块
4	~-190	低温模块
5	~-160	低温模块

图3 实验方案1~3升温曲线

Fig.3 Heating curve of experimental schemes 1—3

图4 实验方案4、5降温曲线

Fig.4 Heating curve of experimental schemes 4 and 5

图5 磁场变化引起的温度变化曲线

Fig.5 Temperature variation curve against magnetic field intensity

表3 不同加热功率时磁场变化引起的温度变化情况（方案1~3）

Table 3 Temperature variation at different magnetic field intensity under different heating power

参数	测温元件	磁场方案
		1		2		3
		0	5 T	0	5 T	0	5 T
最高温度/℃	E	103.72	103.82	307.91	308.01	708.09	708.92
最高温度/℃	PT100	88.21	88.30	275.56	275.67	652.27	653.39
磁场引起温差/℃	E	0.10		0.10		0.83
磁场引起温差/℃	PT100	0.09		0.11		1.12

图6 低温时PT100温度随磁场变化曲线

Fig.6 Temperature variation curve against magnetic field intensity under low temperature range

表4 不同加热功率时磁场变化引起的温度变化情况（方案4、5）

Table 4 Temperature variation at different magnetic field intensity under different heating power

方案	磁场 /T	最低温度/℃	磁场引起温差/℃	平均值/℃
4	0	-191.6	—	0.1
	5	-191.4	0.2
	0	-191.5	0.1
	5	-191.4	0.1
	0	-191.5	0.1
5	5	-165.2	—	0.1
	0	-165.3	0.1
	5	-165.2	0.1
	0	-165.3	0.1

表5 不同测温元件对应式（1）中修正系数

Table 5 Coefficient of correction of Eq.(1) for different thermo element

参数	PT100	E偶
A	0.096495	0.103182
B	-6.4×10^-5	-6.2×10^-6
C	-2.3×10^-7	-2.7×10^-7
D	9.75×10^-10	-8.5×10^-11
E	4.94×10^-12	3.55×10^-12

图7 强磁场情况下测温元件受磁场影响曲线

Fig.7 Deviation of temperature signal under high intensity magnetic field

参考文献 20

1	高义民. 金属凝固原理[M]. 西安: 西安交通大学出版社, 2010.
	GaoY M. Principle of Metal Solidification[M]. Xi’an: Xi’an Jiaotong University Press, 2010.
2	马衍伟, 肖立业, 严陆光. 强磁场条件下材料制备及其研究进展[J]. 科学通报, 2006, 51(24): 2825-2829.
	MaY W, XiaoL Y, YanL G.Preparation of materials under high magnetic field and its research progress[J]. Chinese Science Bulletin, 2006, 51(24): 2825-2829.
3	崔立英, 李晓娜, 齐民. Al-4%Cu过饱和合金在强磁场中时效行为[J]. 中国有色金属学报, 2007, 17(12): 1967-1972.
	CuiL Y, LiX N, QiM. Ageing behavior of super-saturated Al-4%Cu alloys under high magnetic field[J]. The Chinese Journal of Nonferrous Metals, 2007, 17(12): 1967-1972.
4	周迎春, 晁月盛. 低频脉冲磁场处理非晶Fe₇₈Si₉B₁₃合金纳米晶化的DSC研究[J]. 功能材料, 2007, 38(12): 1950-1951+1955.
	ZhouY C, ChaoY S. DSC study on nanocrystallization of amorphous Fe₇₈Si₉B₁₃ alloy treated by low frequency pulse magnetic field[J]. Journal of Functional Materials, 2007,38(12): 1950-1951+1955.
5	任忠鸣, 晋芳伟. 强磁场在金属材料制备中应用研究的进展[J]. 上海大学学报(自然科学版), 2008, 14(5): 446-455.
	RenZ M, JinF W. Progress in applications of strong magnetic field in processing metallic materials[J]. Journal of Shanghai University (Natural Science), 2008, 14(5): 446-455.
6	贾光霖, 庞维成. 电磁冶金原理与工艺[M]. 沈阳: 东北大学出版社, 2003.
	JiaG L, PangW C. Principle and Technology of Electromagnetic Metallurgy[M]. Shengyang: Northeastern University Press, 2003.
7	张伟强. 金属电磁凝固原理与技术[M]. 北京: 冶金工业出版社, 2004.
	ZhangW Q. Principle and Technology of Electromagnetic Solidification of Metal[M]. Beijing: Metallurgical Industry Press, 2004.
8	AvnaimM H, MikhailovichB, AzulayA, et al. Numerical and experimental study of the traveling magnetic field effect on the horizontal solidification in a rectangular cavity (1): Liquid metal flow under the TMF impact[J]. International Journal of Heat and Fluid Flow, 2018, 69(1): 23-32.
9	ŠčepanskisM, JakovičsA, BaakeE, et al. Solid inclusions in an electromagnetically induced recirculated turbulent flow: simulation and experiment[J]. International Journal of Multiphase Flow, 2014, 64(1): 19-27.
10	WangL, ShenJ, QinL, et al. The effect of the flow driven by a travelling magnetic field on solidification structure of Sn-Cd peritectic alloys[J]. Journal of Crystal Growth, 2012, 356(1): 26-32.
11	DadzisK, LukinG, MeierD, et al. Directional melting and solidification of gallium in a traveling magnetic field as a model experiment for silicon processes[J]. Journal of Crystal Growth, 2016, 445(1): 90-100.
12	张新德, 王松伟, 那贤昭. 磁场对金属材料凝固的影响[J]. 钢铁研究学报, 2014, 26(5): 1-7+22.
	ZhangX D, WangS W, NaX Z. Effect of magnetic field on the solidification of metallic materials[J]. Journal of Iron and Steel Research, 2014, 26(5): 1-7+22.
13	徐严谨, 苏彦庆, 骆良顺, 等. 磁场在材料凝固技术中的应用研究现状[J]. 稀有金属材料与工程, 2012, 41(3): 548-553.
	XuY J, SuY Q, LuoL S, et al. Application research status of magnetic field in materials solidification[J]. Rare Metal Materials and Engineering, 2012, 41(3): 548-553.
14	韩巴特. 强磁场对铁基非晶合金晶化过程的影响[D]. 沈阳: 东北大学, 2015.
	HanB T.Effect of high magnetic field on crystallization behavior of Fe-based amorphous alloys[D]. Shenyang: Northeastern University, 2015.
15	朱贤, 山本纯也. 极低温用铜铁-镍铬热电偶的磁场效应[J]. 低温物理学报, 1986, 8(3): 249-252.
	ZhuX, YamamotoJ. Effect of magnetic field on CuFe-NiCr thermocouple[J]. Acta Physica Temperature Humilis Sinica, 1986, 8(3): 249-252.
16	孟秋敏, 欧阳峥嵘, 石磊, 等. 强磁场下锗电阻温度传感器的磁致电阻效应研究[J]. 低温与超导, 2013, 41(9): 15-16+21.
	MengQ M, OuyangZ R, ShiL, et al. Magnetoresistance of germanium thermometer in high magnetic fields[J]. Cryogenics, 2013, 41(9): 15-16+21.
17	孟秋敏, 欧阳峥嵘, 石磊, 等. 强磁场下Pt电阻温度传感器的磁致电阻效应研究[J]. 低温物理学报, 2012, 34(2): 126-128.
	MengQ M, OuyangZ R, ShiL, et al. Magnetoresistance of platinum resistance thermometer in high magnetic fields[J]. Chinese Journal of Low Temperature Physics, 2012, 34(2): 126-128.
18	孟秋敏, 欧阳峥嵘, 李洪强, 等, 强磁场下铑铁温度计的磁致电阻效应研究[J]. 低温工程, 2011, 179(1): 32-34.
	MengQ M, OuyangZ R, ShiL, et al. Magnetoresistance of rhodium-iron thermometer in high magnetic fields[J]. Cryogenics, 2011, 179(1): 32-34.
19	郭树权, 崔长庚, 姚成国. 强磁场下的温度控制与测量[J]. 物理, 1988, 17(8): 502-503+510.
	GuoS Q, CuiC G, YaoC G.Temperature control and measurement under strong magnetic field[J]. Physics, 1988, 17(8): 502-503+510.
20	董戴, 王元庆. 恶劣电磁环境下温度测量的抗干扰[J]. 安徽工程科技学院学报, 2002, 17(3): 59-62.
	DongD, WangY Q. EMC for temperature measuring in atrocious electromagnetic field[J]. Journal of Anhui Polytechnic University, 2002, 17(3): 59-62.

[1]	黄承志,汤海波,顾恬,赵玉刚. 热敏荧光法用于蒸发液滴近接触线的温度测量[J]. 化工学报, 2021, 72(10): 5142-5149.
[2]	杨涛, 周致富, 陈斌, 赵曦, 王国祥. 表面温度测量方式对喷雾冷却表面传热特性的影响[J]. 化工学报, 2016, 67(11): 4558-4565.
[3]	张春晓, 张涛. 基于多小波相邻系数法的热式油水两相流相含率测量 [J]. 化工学报, 2009, 60(2): 325-331.