发明授权
- 专利标题: Magnetostrictive strain sensor (airgap control)
- 专利标题(中): 磁致伸缩应变传感器(气隙控制)
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申请号: US11034440申请日: 2005-01-11
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公开(公告)号: US07234361B2公开(公告)日: 2007-06-26
- 发明人: Bruno P. B. Lequesne , Thaddeus Schroeder , Donald T. Morelli , Thomas A. Baudendistel
- 申请人: Bruno P. B. Lequesne , Thaddeus Schroeder , Donald T. Morelli , Thomas A. Baudendistel
- 申请人地址: US MI Troy
- 专利权人: Delphi Technologies, Inc.
- 当前专利权人: Delphi Technologies, Inc.
- 当前专利权人地址: US MI Troy
- 代理商 Scott A. McBaln
- 主分类号: G01B7/16
- IPC分类号: G01B7/16 ; G01B5/30
摘要:
A sensor assembly for measuring force along an axis (F) comprises an inductance coil extending around the axis (F) for establishing a loop of magnetic flux looping axially through the coil and extending around the axis (F) to define a donut shaped ring of magnetic flux surrounding the axis (F). A core of magnetostrictive material provides a primary path for the magnetic flux in a first portion of the loop of magnetic flux and a magnetic carrier provides a return path for magnetic flux in a second portion of the loop of magnetic flux as the magnetic flux circles the coil through the core and the carrier. A first interface extends radially between the core and the carrier whereby the core and the carrier are urged together at the interface in response to a force applied parallel to the axis (F). Various embodiments or combinations of the core and carrier are illustrated in FIGS. 3–7.
公开/授权文献
- US20060150743A1 Magnetostrictive strain sensor (airgap control) 公开/授权日:2006-07-13