دورية أكاديمية
An ultra-low magnetic field thermal demagnetizer for high-precision paleomagnetism
| العنوان: | An ultra-low magnetic field thermal demagnetizer for high-precision paleomagnetism |
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| المؤلفون: | Huafeng Qin, Xiang Zhao, Shuangchi Liu, Greig A. Paterson, Zhaoxia Jiang, Shuhui Cai, Jinhua Li, Qingsong Liu, Rixiang Zhu |
| المصدر: | Earth, Planets and Space, Vol 72, Iss 1, Pp 1-12 (2020) |
| بيانات النشر: | SpringerOpen, 2020. |
| سنة النشر: | 2020 |
| المجموعة: | LCC:Geography. Anthropology. Recreation LCC:Geodesy LCC:Geology |
| مصطلحات موضوعية: | Paleomagnetism, Thermal demagnetization, Furnace, AC magnetic field, Residual magnetic field, Heating wire structure, Geography. Anthropology. Recreation, Geodesy, QB275-343, Geology, QE1-996.5 |
| الوصف: | Abstract Thermal demagnetization furnaces are widely used paleomagnetic facilities for progressive removal of naturally acquired magnetic remanence or the imparting of well-controlled laboratory magnetization. An ideal thermal demagnetizer should maintain “zero” magnetic field in the sample chamber during thermal treatments. However, magnetic field noises, including the residual magnetic fields of the construction material and the induced fields caused by the alternating current (AC) in the heating element are always present, which can contaminate the paleomagnetic results at the elevated temperatures or especially for the magnetically weak samples. Here, we designed a new structure of heating wire named “straight core solenoid” to develop a new demagnetization furnace with ultra-low magnetic field noise. Simulation and practical measurements show that the heating current magnetic field can be greatly reduced by using the new technology. Thermal demagnetization experiments demonstrate that the new demagnetizer can yield low noise results even for weakly magnetic samples. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1880-5981 |
| Relation: | http://link.springer.com/article/10.1186/s40623-020-01304-0; https://doaj.org/toc/1880-5981 |
| DOI: | 10.1186/s40623-020-01304-0 |
| URL الوصول: | https://doaj.org/article/bae1e41d9f5e4d208b9e474c561728e1 |
| رقم الأكسشن: | edsdoj.bae1e41d9f5e4d208b9e474c561728e1 |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 18805981 |
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| DOI: | 10.1186/s40623-020-01304-0 |