Balanced magnetic linear displacement sensor

Details Balanced magnetic linear displacement sensor Balanced magnetic linear displacement sensor

2006-08-08

2006-08-08

LeDynh, Bot (Department: 2862)

Electricity: measuring and testing

Magnetic

Displacement

C324S207240, C324S207260

Reexamination Certificate

active

07088095

ABSTRACT:
A magnetic linear displacement sensor. In accordance with one embodiment, the displacement sensor includes a Hall transducer element having a sensor plate surface and at least one magnet having a lengthwise dimension along which said Hall element detects a magnetic field component orthogonal to the sensor plate surface during displacement sensing. The magnet includes first and second pole faces disposed on opposite lengthwise sides thereof and a polarization axis aligned orthogonally with respect to the lengthwise dimension. The first pole face opposes the Hall, element and is characterized as having a non-planar surface contoured to generate a substantially linear orthogonal magnetic field component sensed by said Hall element during linear displacement sensing.

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PCT Notification of Transmittal of the International Search Report and the Written Opinion of the International Searching Authority, Date of Mailing: Jul. 1, 2005.

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