Position detection apparatus including a circuit for receiving a

Details Position detection apparatus including a circuit for receiving a Position detection apparatus including a circuit for receiving a

1994-09-30

1996-12-31

O'Shea, Sandra L.

Electricity: measuring and testing

Magnetic

Displacement

32420721, 32420724, G01B 702, G01D 516, G01D 5246

Patent

active

055897690

ABSTRACT:
A member having a magnet attached is moveable along a path which has an array of magnetic field sensors adjacent the path. Each sensor provides a bipolar output signal as the magnet passes. A plurality of sensors provide a plurality of output signals for a first position of the magnet. Electronic means fit the plurality of output signals to a first curve having a crossover point to determine the first position.

REFERENCES:
patent: 4591784 (1986-05-01), Kolitsch et al.
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patent: 4879511 (1989-11-01), Leon
patent: 5216363 (1993-06-01), Masaaki
patent: 5239474 (1993-08-01), Eaton, Jr. et al.
patent: 5270645 (1993-12-01), Wheeler et al.
patent: 5351028 (1994-09-01), Krahn
patent: 5390109 (1995-02-01), Takemoto et al.

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