Optical angle encoders

High accuracy, superior metrology, easy integration.

Renishaw’s range of optical angle encoders include absolute and incremental versions, with accuracy to ±1 arc second, resolution to 0.00075 arc seconds and speeds up to 36000 rev/min.

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RESM montageDesigned for demanding rotary applications that need long-term reliability and high dynamic performance, the RESR, RESM and RESA angle encoders feature high-accuracy graduations marked directly onto a stainless-steel ring. Available in a range of 20 diameters (from Ø52 mm to Ø550 mm) and with custom sizes or even larger diameters available on request, Renishaw's range of absolute and incremental angle encoders have a low cross-section and a large internal diameter to position easily around large internal rotors, payloads or services.

The angle encoder rings also feature a unique taper mount which corrects for eccentricity of the rotor/shaft and ensures excellent accuracy, offering easy and robust fine adjustment of the ring's form and all installation tolerances. In addition, the angle encoder rings offer a very low moment of inertia ensuring that whatever the installation, the system can be positioned with minimal torque and maximum speed.

REXM and REXA ultra-high accuracy rings provide even higher performance, offering ±1 arc second total installed accuracy when used with dual readheads.

Downloads

  • [180.9MB] SiGNUM™ Software version 5.0.

    SiGNUM software version 5.0 (released January 2012) - required to optimise installation and set-up of SiGNUM rotary and linear encoders and provides a quick and comprehensive system calibration. The SiGNUM Si interface is connected to the PC via a mini USB connector and the software provides real-time diagnostics to simplify installation and system maintenance.

  • [31.8MB] SiGNUM™ Software version 5.0.

    SiGNUM software version 5.0 (released January 2012) - required to optimise installation and set-up of SiGNUM rotary and linear encoders and provides a quick and comprehensive system calibration. The SiGNUM Si interface is connected to the PC via a mini USB connector and the software provides real-time diagnostics to simplify installation and system maintenance.

  • [39.5MB] Offline Encoder product configurator

    An offline version of the Encoder product configurator. Available for download

Next steps

Contact us online if you require more information or you have a pricing query, or alternatively you may like to speak directly to your local Renishaw office.