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.

Page contentDownloadsCall your local office Contact us online

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.

Brochures

  • Brochure: Non-contact position encoders Brochure: Non-contact position encoders

    Renishaw offers a wide range of compact magnetic and optical encoders to meet the diverse requirements of industrial automation. This product brochure details an extensive selection of robust magnetic linear, ring and rotary encoders, optical incremental linear and rotary encoders, laser interferometers and our new range of optical absolute linear and rotary encoders.

    [8.2MB]

Articles

Downloads

  • 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.

    [40.1MB]
  • 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.

    [40.3MB]
  • Offline Encoder product configurator

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

    [2.1MB]

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.