OPTICAL ENCODER SYSTEM
Jul 2009Renishaw Inc.Request Info
The Resolute optical encoder system unveiled by Renishaw Inc. produces 27-bit resolution at 36,000 rpm and 1-nm resolution at up to 100 m/s for linear and angle encoding applications. It uses a single-track optical scale and acquires absolute position immediately upon switch-on, eliminating the need for reference returns. Its optics read a fine-pitch 30-μm scale, resulting in low noise levels with jitter of <10 nm rms. The single track combines the absolute position and embedded phase information into a single code, eliminating the de-phasing problems associated with dual-track scales. The IP64-sealed read head enables wipe-clean recovery for reliability. Its temperature sensor measures heat buildup and signals an alarm if the temperature rises above 80 °C.