Non-contact linear absolute position sensor

Details Non-contact linear absolute position sensor Non-contact linear absolute position sensor

2007-05-08

2007-05-08

Nguyen, Khai M. (Department: 2819)

Electricity: measuring and testing

Magnetic

Displacement

C324S207110, C324S207130, C324S207240, C341S013000, C341S015000

Reexamination Certificate

active

11268068

ABSTRACT:
A non-contact linear absolute position sensor includes a first magnetic encoder having n+1 pole pairs, a second magnetic encoder having n pole pairs and located and aligned with the first magnetic encoder so as to cover a linear distance. The magnetic encoders are affixed to a traveling body. Two pairs of Hall Effect sensors are located near each of the first and second magnetic encoders and are configured to generate linear position signals. A processor is provided to process the linear position signals to generate an output signal indicative of a linear absolute position of the traveling body.

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