Electricity: measuring and testing – Magnetic – Displacement
Reexamination Certificate
2005-03-15
2005-03-15
Deb, Anjan K. (Department: 2858)
Electricity: measuring and testing
Magnetic
Displacement
C324S207260
Reexamination Certificate
active
06867583
ABSTRACT:
A displacement sensor precisely detects displacement of a moving body in a rectilinear movement direction even if the moving body rotates. The sensor includes a detector and a magnet. The cross sectional area of the permanent magnet in a plane perpendicular to an axis, which extends in the rectilinear movement direction, varies in the direction of movement. The permanent magnet is magnetized in the rectilinear movement direction. The detector is located so that magnetic flux passes through a detection face of the detector substantially perpendicularly.
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patent: 6175233 (2001-01-01), McCurley et al.
patent: 6211668 (2001-04-01), Duesler et al.
patent: 6222359 (2001-04-01), Duesler et al.
patent: 6304078 (2001-10-01), Jarrard et al.
patent: 6586929 (2003-07-01), Luetzow
Hariu Tetsuo
Mizutani Akitoshi
Nakamura Tsutomu
Takeda Kenji
Takeyama Hiroshi
Deb Anjan K.
Denso Corporation
Nippon Soken Inc.
Nixon & Vanderhye PC
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