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Tuesday, May 24, 2016
VOLUME -24 NUMBER 6
Publication Date: 06/1/2009
Front Page News
People in the News
Electronic Mfg. Services
Electronic Mfg. Products
Special Features: Components and Distribution
Product Preview: Atlantic Design/MDM
June 2009 Issue
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Renishaw Intros Line of Absolute Optical Encoders
Line of absolute optical encoders.
Hoffman Estates, IL — Renishaw's new Resolute
optical encoder system is described as the world's first true absolute encoder capable of 27-bit resolution at 36,000 rpm. The fine-pitch system offers excellent dirt immunity, while delivering market-leading resolution of just 1 nanometer at up to 100m/s, for both linear and angle encoding applications.
Using a special single-track optical scale, the encoder acquires absolute position immediately upon switch-on — without battery back-up — simplifying machine design by completely eliminating the need for reference returns. The system's ruggedness, ultra-high speed capability and exceptional resolution make it suitable for high-performance lathes, as well as slower-moving axes requiring the highest levels of precision and motion control integrity. The new encoder uses sophisticated new optics to read a fine-pitch, 30-µm scale, resulting in very low noise levels (jitter <10 nm rms) for outstanding positional stability. The enhanced detection technology intrinsically provides a very low sub-divisional error (SDE) of ±40nm. The result is better surface finish of machined parts from CNC machine tools, better scanning and velocity control, and rock-solid servo stiffness on linear motors or rotary direct-drives when holding position.
A comprehensive range of scale options permits great design flexibility with linear models of the Resolute system. RELA Invar spars offer "zero" expansion and ±1µm accuracy on lengths up to 1m. For high performance on long axes and significantly more robustness than glass scales, RSLA stainless steel spars have a total accuracy of ±4µm over 5m.
Contact: Renishaw, Inc., 5277 Trillium Boulevard, Hoffman Estates, IL 60192
847-286-9953 fax: 847-286-9974 E-mail: firstname.lastname@example.org Web:
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