High-temperature optical rotary and linear position sensor

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system

Reexamination Certificate

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Details

C250S231140, C356S614000

Reexamination Certificate

active

06919559

ABSTRACT:
A device and method capable of measuring the optical rotary and linear position of items, that is reliable, accurate and capable of operating in harsh environments. The present invention utilizes optics to measure rotary and linear position. Unlike the prior art the present invention relies on the optical angle to determine position rather than an analog signal or intensity. Because of this, the present invention is capable of providing accurate results in high temperature, harsh and dirty environments. Further, the present invention reduces the need for time consuming and costly replacements at the sensing end.

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