
浏览全部资源
扫码关注微信
1. 中国科学院上海应用物理研究所 嘉定园区,上海,201800
2. 中国科学院大学,北京,100049
[ "通讯作者: 周巧根,E-mail: zhouqiaogen@sinap.ac.cn E-mail:heyongzhou@sinap.ac.cn" ]
纸质出版日期:2014-04-11
移动端阅览
钟 逸, 张 伟, 张继东, 等. 霍尔探头低温标定装置导冷结构热性能的数值模拟[J]. 核技术, 2014,37(4):040101
ZHONG Yi, ZHANG Wei, ZHANG Jidong, et al. Numerical simulation of cold conduction structure thermal performance in Hall probe cryogenic calibration system[J]. Nuclear techniques, 2014, 37(4): 040101
钟 逸, 张 伟, 张继东, 等. 霍尔探头低温标定装置导冷结构热性能的数值模拟[J]. 核技术, 2014,37(4):040101 DOI: 10.11889/j.0253-3219.2014.hjs.37.040101.
ZHONG Yi, ZHANG Wei, ZHANG Jidong, et al. Numerical simulation of cold conduction structure thermal performance in Hall probe cryogenic calibration system[J]. Nuclear techniques, 2014, 37(4): 040101 DOI: 10.11889/j.0253-3219.2014.hjs.37.040101.
霍尔探头低温标定装置是对霍尔探头进行低温下磁测性能标定的实验工具。标定装置内,探头的导冷结构的温度分布以及低温下的冷缩变形对霍尔探头标定的准确性有直接的影响。本文运用有限元模拟软件对霍尔探头低温标定装置的导冷结构进行了稳态热分析和冷缩变形分析;对低温下霍尔探头的焦耳效应进行了模拟,研究了霍尔探头的焦耳效应对其标定温度的影响。当制冷机二级冷头温度为4.42 K时,霍尔探头温度模拟结果为6.75 K,霍尔探头轴向冷缩量模拟结果为1.11 mm,实验结果霍尔探头温度6.55 K,模拟结果可靠。
Background: The cryogenic calibration system of Hall probe is an important tool for high precision magnetic measurement at low temperature. Purpose: In order to setup the calibration system
simulations are performed to study the temperature distribution and thermal deformation of the conduction components which have a direct impact on the Hall probe calibration. Methods: Finite element method was used to the steady thermal analysis and cold deformation analysis. Joule effect of the Hall sensor at low temperature was simulated
and temperature differences from the Joule effect were then figured out. Results: When the temperature of the secondary cold head is 4.42 K
the simulated temperature of the Hall probe is 6.75 K
and the simulation result of Hall probe axial deformation is 1.11 mm. Experimental result of the temperature of hall probe is 6.44 K. Conclusion: The simulation result is reliable and can provide the basis for Hall probe temperature correction.Cited
0
浏览量
22
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621