DEVICE TO REPRODUCE ANGULAR SPEED (MEASURE OF ANGULAR SPEED) FROM MULTIDIGIT HOLOGRAPHIC MEASURE OF FLAT ANGLE Russian patent published in 2011 - IPC G01P3/36 

Abstract RU 2429490 C1

FIELD: physics.

SUBSTANCE: invention uses multidigit holographic measure of flat angle, that is, holographic prism that represents crystal with system of superimposed holograms written therein mounted at the center of rotary table, its angular speed being subject to control, and illuminated by coherent laser beam aligned with rotary table axis. Fan of diffracted beams results, said beams running from crystal centers. Crystal plane is perpendicular to reference beam. Angular (annular) scale is produced directly before each measurement by interaction between multicounty indicator with annular scale carrier, that is, panoramic photo electronic receiver.

EFFECT: improved metrological characteristics, higher reliability.

3 cl, 3 dwg, 2 tbl

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Authors

Granovskij Valerij Anatol'Evich

Kudrjavtsev Mikhail Dmitrievich

Ryskin Aleksandr Iosifovich

Shcheulin Aleksandr Sergeevich

Dates

2011-09-20Published

2010-04-08Filed