The RLE20 fiberoptic laser encoder system from Renishaw converts the laser interferometer from a complex scientific instrument into a simple production solution offering picometer resolution, differential measurements and part-per-billion laser frequency stability. The use of fiber-optics eliminates the need for multiple remote beam splitters, benders and adjustable mounts.
- Enables highest precision control over two axes from a single laser source
- Provides sub-nanometer non-linearity and resolution capability of 38 picometers
- Combines laser interferometers, detector units and adjustable mechanical mounts for beam alignment into a single compact unit
- Integral beam steering optic provides simple adjustment of beam angle
- Utilizes laser unit connected to detector head by 3 m fiber-optic cable
- Reduces installation time and equipment footprint by launching laser light through fiber-optics, using two aligned components to form complex axis positioning system
- Provides positional output signals in differential digital RS422 and/or 1Vpp sine/cosine formats
- Range of selectable resolutions, bandwidth limiting filters and hysteresis options available by ensuring direct interface to motion control systems with additional electronics
- Enables high and low resolution feedback signals simultaneously
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