发明名称 |
Systems of recording piston rod position information in a magnetic layer on a piston rod |
摘要 |
Described are systems of recording piston rod position information in a magnetic layer on the piston rod. A piston rod moving with respect to a cylinder has a magnetically hard layer formed thereon to provide a recording medium. A magnetic pattern is recorded in the magnetically hard layer. A magnetic field sensor senses the recorded magnetic pattern while the piston rod is moving with respect to the cylinder and generates signals in response to the magnetic pattern that are used to determine an instantaneous position of the piston rod.
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申请公布号 |
US2006038556(A1) |
申请公布日期 |
2006.02.23 |
申请号 |
US20050258308 |
申请日期 |
2005.10.25 |
申请人 |
SRI INTERNATIONAL |
发明人 |
LOW THOMAS P.;CLARK C. B.;PELRINE RONALD E.;ECKERLE JOSEPH S.;SMITH CHRIS |
分类号 |
G01B7/14;F15B15/28;G01D5/14 |
主分类号 |
G01B7/14 |
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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