Optical encoder

  • 06-May-2009 05:01 EDT

Renishaw’s RESOLUTE optical encoder system achieves 27-bit resolution at 36,000 rpm. The system offers good dirt immunity while delivering resolution of 1 nm at up to 100 m/s, for both linear and angle encoding applications. Using a single-track optical scale, it acquires absolute position immediately upon switch-on, without battery backup, thus simplifying machine design by eliminating the need for reference runs. The device is suited for high-performance lathes as well as slower moving axes requiring high levels of precision and motion control integrity. It uses sophisticated optics to read a fine-pitch, 30-µm scale, resulting in low noise levels with jitter less than 10 nm rms for good positional stability. Enhanced detection technology provides a low subdivisional err­or of ±40 nm, resulting in better surface finish of machined parts from CNC machine tools, better scanning and velocity control, and solid servo stiffness on linear motors or rotary direct-drives when holding position.­
HTML for Linking to Page
Page URL
Rate It
5.00 Avg. Rating

Read More Articles On

Researchers from Purdue University are studying the fundamental mechanisms behind a method that uses electrical fields to enhance ceramics-sintering processing, which could aid R&D of rechargeable lithium-ion batteries and fuel cells. The research also could shed light on a phenomenon called electromigration, which can affect the performance of electronic devices.
Industrial aluminum slabs are typically produced by blending small amounts of copper or manganese in a reservoir of molten aluminum that is rapidly cooled, a process known as direct-chill casting. Variations in the way these elements solidify can yield uneven results that weaken the final product.
Improvements to Airbus A320 passenger air nozzles could potentially contribute to program-wide benefits.
NASA has selected proposals for the creation of two multi-disciplinary, university-led Space Technology Research Institutes (STRIs) that will focus on the development of technologies critical to extending human presence deeper into our solar system. The new STRIs will bring together researchers from various disciplines and organizations to collaborate on the advancement of cutting-edge technologies in bio-manufacturing and space infrastructure.

Related Items

Technical Paper / Journal Article
Training / Education
Training / Education
Training / Education
Training / Education
Training / Education