发明名称 |
OPTICALLY PUMPED MAGNETOMETER AND METHOD OF MEASURING MAGNETIC FORCE |
摘要 |
<p>An optically pumped magnetometer includes: a modulation unit which allows rectangular wave modulation to an angle of a polarization plane of probe light; a detector for detecting a change of the angle of the polarization plane of the probe light transmitted through a cell; and a differential circuit for obtaining a difference in light intensity between components separated by a polarization splitter. Thus, both a reduction of a light intensity noise of the probe light and a separation and reduction of a noise defined by an inverse of a frequency in a low frequency area can be achieved.</p> |
申请公布号 |
WO2013147296(A1) |
申请公布日期 |
2013.10.03 |
申请号 |
WO2013JP59802 |
申请日期 |
2013.03.26 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
ICHIHARA, SUNAO;KOBAYASHI, TETSUO;ISHIKAWA, KIYOSHI |
分类号 |
G01R33/26 |
主分类号 |
G01R33/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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