发明名称 |
ELECTROMAGNETIC SENSOR AND CALIBRATION THEREOF |
摘要 |
Embodiments of the present invention provide an electromagnetic sensor (400) for detecting a microstructure of a metal target, comprising: a magnetic device (410, 420) for providing an excitation magnetic field; a magnetometer (430) for detecting a resultant magnetic field induced in a metal target; and a calibration circuit (450, 551, 552, 553, 554) for generating a calibration magnetic field for calibrating the electromagnetic sensor, wherein the calibration reference magnetic field is generated by an electrical current induced in the calibration circuit by the excitation magnetic field. |
申请公布号 |
WO2012146930(A3) |
申请公布日期 |
2013.06.20 |
申请号 |
WO2012GB50930 |
申请日期 |
2012.04.27 |
申请人 |
THE UNIVERSITY OF MANCHESTER;PEYTON, ANTHONY JOSEPH;YIN, WULIANG;DICKINSON, STEPHEN JOHN |
发明人 |
PEYTON, ANTHONY JOSEPH;YIN, WULIANG;DICKINSON, STEPHEN JOHN |
分类号 |
G01N27/72;G01N33/20;G01R33/00 |
主分类号 |
G01N27/72 |
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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