| 超导岩样磁力仪的研制 |
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| 引用本文： | 何仁汉,薛寿清. 超导岩样磁力仪的研制[J]. 地球物理学报, 1987, 30(5): 504-513 |
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| 作者姓名： | 何仁汉 薛寿清 |
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| 作者单位： | 1. 同济大学海洋地质系, 上海;2. 中国计量科学研究院, 北京 |
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| 摘 要： | 超导岩样磁力仪是以超导量子干涉器（SQUID）为磁传感器用来测量岩样剩磁的仪器,是研究岩石磁学和古地磁学的重要手段。它比常规的古地磁仪器--无定向磁力仪、旋转磁力仪具有灵敏度高、响应时间短、动态范围大、又可三分量同时测量等优点,满足了弱磁岩样测量的要求。本文叙述了超导测磁的理论基础,仪器的组成,原理,研制情况及实测结果。
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| 关 键 词： | 超导量子干涉器 超导岩样磁力仪 约瑟夫森效应 Meissner效应 超导屏蔽 |
| 收稿时间： | 1985-09-17 |
STUDY AND CONSTRUCTION OF A SUPERCONDUCTING ROCK SAMPLE MAGNETOMETER |
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| HE REN-HAN XUE SHOU-QING. STUDY AND CONSTRUCTION OF A SUPERCONDUCTING ROCK SAMPLE MAGNETOMETER[J]. Chinese Journal of Geophysics, 1987, 30(5): 504-513 |
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| Authors: | HE REN-HAN XUE SHOU-QING |
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| Affiliation: | 1. Tongji University, Shanghai;2. National Institute of Metrology, Beijing |
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| Abstract: | A superconducting rock sample magnetometer (SRM), used for measuring the remanent magnetization of rock sample, is constructed using a SQUID magnetic sensor. This is an important equipment in research for rock magnetism and paleomagnetism. Compared with other routine instruments i.e. the astatic magnetometer and spinning magnetometer, SRM, this instrument has higher sensitivity, wider dynamic range and faster response time. Besides, it can measure up to three orthogonal components of magnetization of the sample simultaneously without rotating or vibrating the sample.This paper presents the theoretical basis of superconducting rock sample magnetometer using SQUID and the structure of the instrument as well as measurement results. |
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| Keywords: | SQUID SRM Josephson effect Meissner effect Superconducting shield. |
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