发明申请
- 专利标题: Magnetically biased eddy current sensor
- 专利标题(中): 磁偏置涡流传感器
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申请号: US11045667申请日: 2005-01-28
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公开(公告)号: US20060038559A1公开(公告)日: 2006-02-23
- 发明人: Wayne Lamb , Curtis Johnson
- 申请人: Wayne Lamb , Curtis Johnson
- 专利权人: Honeywell International, Inc.
- 当前专利权人: Honeywell International, Inc.
- 主分类号: G01N27/82
- IPC分类号: G01N27/82
摘要:
Eddy currents arise when a conductive material moves through a magnetic field. Eddy currents, like all electric currents, generate a magnetic field. The generated magnetic field can be detected and measured through use of one or more magnetically biased GMR elements. In general, an eddy current sensor can be configured, which includes a magnet, and a first giant magnetoresistive element placed such that the magnetic field from the magnet biases the giant magnetoresistive element along its primary axis.