New Line of 27-bit Resolution Absolute Optical Encoders from Renishaw

Renishaw’s RESOLUTE optical encoder system is 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 1nm at up to 100 m/s, for both linear and angle encoding applications.

RESOLUTE’s high performance is the result of a unique method of operation. Think of the readhead as an ultra-fast miniature digital camera, taking photos of a scale that consists of a long, non-repeating bar code. RESOLUTE analyzes these photos to determine position with extremely low noise (jitter) and SDE (Sub-Divisional Error). This increases encoder feedback fidelity and ensures smoother velocity control and positional stability.

Using a unique single-track optical scale, RESOLUTE 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 ideal for high-performance lathes, as well as slower-moving axes requiring the highest levels of precision and motion control integrity.

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