发明授权
US07024946B2 Assembly for measuring movement of and a torque applied to a shaft
失效
用于测量施加到轴的运动和扭矩的组件
- 专利标题: Assembly for measuring movement of and a torque applied to a shaft
- 专利标题(中): 用于测量施加到轴的运动和扭矩的组件
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申请号: US10763499申请日: 2004-01-23
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公开(公告)号: US07024946B2公开(公告)日: 2006-04-11
- 发明人: Thomas Wolfgang Nehl , Thomas Hubert Van Steenkiste , John R. Smith , Brian K Fuller , Avoki M. Omekanda , Donald T. Morelli , Joseph V. Mantese
- 申请人: Thomas Wolfgang Nehl , Thomas Hubert Van Steenkiste , John R. Smith , Brian K Fuller , Avoki M. Omekanda , Donald T. Morelli , Joseph V. Mantese
- 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. McBain
- 主分类号: G01L3/10
- IPC分类号: G01L3/10
摘要:
The subject invention provides an assembly for measuring movement of and a torque applied to a shaft extending between first and second ends and being hollow, specifically for measuring rotation and twisting of the shaft. A permanent magnet is disposed within the shaft for producing a parallel magnetic field emanating radially from the shaft. A sensor mechanism is positioned adjacent the shaft to detect the magnetic flux produced in response to the shaft being moved. The sensor mechanism includes a magnetostrictive (MR) material disposed annularly about the shaft and extends between first and second edges. A flux collector extends beyond the first and second edges of the magnetostrictive material to direct the magnetic flux through a Hall sensor to detect an axial component of the magnetic flux in response to twisting. A positional ring extends annularly around and spaced from the shaft and a positional sensor is disposed between the positional ring and the shaft for measuring a radial component of the magnetic flux in response to rotating.