optical linear encoder

Grating Ruler Grating ruler, also known as optical linear encoder,is a sensor that realizes high-precision displacement measurement using optical principles. It is commonly used to measure linear position, displacement and speed,and is applied in the closed-loop servo systems of CNC machine tools. ...

High Precision Glass Line Ruler High-precision glass line ruler is an optical precision measuring element that uses high-stability optical glass as the substrate and forms precise line patterns on the glass surface through high-precision photolithography,coating,etching and other processes.It ...