Fiber-Optic Laser Encoder

    July 27, 2006
    The RLE20 fiber-optic laser encoder offers picometer resolution, differential measurements, and parts-per-billion laser-frequency stability.

    Fiber optics deliver laser light directly to the measurement axes, eliminating the need for multiple remote beam splitters, benders, and adjustable mounts. The RLE20 is suitable for X-Y positioning systems that require precision control over two axes from a single laser source. The interferometer system and components provide subnanometer nonlinearity and resolution of 38 pm. The system provides positional output signals in differential digital RS-422 and/or 1-Vpp sine/cosine formats and digital outputsignal resolution up to 10 nm.

    Renishaw Inc.,
    4277 Trillium Blvd., Hoffman Estates, IL 60192,
    (847) 286-9953, renishaw.com/encoders

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