发明名称 |
Assembly for measuring movement of and a torque applied to a shaft |
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. |
申请公布号 |
US7024946(B2) |
申请公布日期 |
2006.04.11 |
申请号 |
US20040763499 |
申请日期 |
2004.01.23 |
申请人 |
DELPHI TECHNOLOGIES, INC. |
发明人 |
NEHL THOMAS WOLFGANG;VAN STEENKISTE THOMAS HUBERT;SMITH JOHN R.;FULLER BRIAN K;OMEKANDA AVOKI M.;MORELLI DONALD T.;MANTESE JOSEPH V. |
分类号 |
G01L3/10 |
主分类号 |
G01L3/10 |
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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