Research

Self tracing grating interferometer

Grating Interferometer

Brand: independent research

Introduction: Built based on self-traceable grating, it is mainly used for nano displacement measurement and relative position measurement. The interferometer uses a laser wavelength of 405nm, with a resolution of 0.3nm, a working distance of 2-100mm, and a maximum measurement speed of 2mm/s. The system uses the grating pitch as the measurement reference, and the grating pitch is directly traceable to the chromium leap frequency, so the system has the characteristics of traceability, and has high accuracy, repeatability and stability.