Measuring apparatus for determining the position of a movable el

Details Measuring apparatus for determining the position of a movable el Measuring apparatus for determining the position of a movable el

1992-08-31

1994-03-29

Messinger, Michael

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

345180, G01V 904

Patent

active

052987370

ABSTRACT:
A measuring apparatus for determining the position of a movable element with respect to a pair of spaced reference means, e.g. mirrors, rotatable around parallel shafts. The movable element emits a light beam from a position to both mirrors. As a result of the rotation, the two mirrors convert the reflected light beam into a light pulse series. Each of these light pulse series is detected by a detector, which detected light pulse series are supplied to a processing unit for calculating from the light pulse series and from a starting pulse the position of the movable element with respect to both mirrors.

REFERENCES:
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patent: 4949079 (1990-08-01), Loebner
patent: 5012049 (1991-04-01), Schier
patent: 5073770 (1991-12-01), Lowbner
patent: 5126513 (1992-06-01), Wang et al.
patent: 5164585 (1992-11-01), Lieu

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