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ANGLE ENCODERS

Photonics Spectra
Feb 2005
Renishaw Inc.Request Info
 
ANGLE ENCODERS The Signum encoder family from Renishaw Inc. offers high-speed, noncontact performance combined with intelligent signal processing and the In-Trac autophase bidirectional optical reference mark. The first model, the RESM optical encoder, delivers speeds of more than 3600 rpm and accuracy to ±0.5 arc sec with resolution and repeatability to 0.02 arc sec. It is designed for industrial applications. The signal processing ensures reliability and ±40-nm cyclic error, and the software enables optimum setup and real-time system diagnostics via a PC's USB port.


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GLOSSARY
optical encoder
A device designed to measure linear or rotary motion by detection of the movement of markings on a transparent medium past a fixed point of light. The encoder has a moving code plate, a glass disc with positional or angular information -- generally bit information and -- simple geometric optics for readout.
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