Interferometric Laser Encoders for Precision Positioning

Laser encoders measure the position and displacement of a moving axis and convert it into digital or analog signals that motion controllers and drive systems use for closed-loop control. Dynatronic’s interferometric laser encoders use wavelength-based measurement on a photonic integrated chip to deliver accuracy of up to ±1 ppm and resolution down to 0.1 nm, over travel lengths from 0.1 m up to 100 m, with no physical scale to splice and no precision optical alignment. Available in sealed and open-frame versions with BiSS-C, SSI, TTL, and 1 Vpp interfaces, they integrate directly with existing machine and stage controls. These encoders are designed for semiconductor motion stages, precision machine tools, linear motor modules, and coordinate measuring machines.