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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    Titel :

    Advanced Engraving Of Angle-Encoder Disks


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    01.06.1989



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Shaft Angle Encoder

    Di Pietro, A. R. / Maclay, W. R. | IEEE | 1966


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    Capacitive shaft-angle encoder

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    Electronic shaft-angle encoder

    Powell, J. A. | NTRS | 1977


    Rapidly-Indexing Incremental-Angle Encoder

    Christon, Philip R. / Meyer, Wallace W. | NTRS | 1989