Precision increased over mechanical engravers. Laser pulses timed according to rotational speed of rotor electrostatically suspended in vacuum marks angular-encoder disk mounted on lower end of rotor. Precision of timing circuitry and low rotational damping (damping time about 700 years in high vacuum) results in highly-precise angular intervals. System conceived to meet need for increased precision of angular measurements in advanced scientific instruments.


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    Title :

    Advanced Engraving Of Angle-Encoder Disks


    Contributors:

    Published in:

    Publication date :

    1989-06-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




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