The TONIC optical encoder from Renishaw (Hoffman Estates, IL) packs advanced optics and electronics into a compact read-head measuring 35 × 13.5 × 10 mm. Available in both linear and rotary versions, it supports applications from standard motion control to ultra-high precision stages.
The encoder operates at speeds up to 10 meters/sec and at temperatures to 70°C, while providing resolution to 5 μm. Two integral read-head LEDs provide quick and easy set-up and diagnostics. The encoder provides a bi-directionally repeatable index over its entire speed and temperature range without increasing overall system width. Integral dual limits are available, enabling users to select end-of-travel position.