optical line ruler

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 ...

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. ...

Film Ruler Film Ruler is essentially a high-precision optical reference tool,commonly used for dimensional inspection,alignment calibration and accuracy verification.In simple terms,it can be understood as a"transparent ruler with precise scales",but its precision and manufacturing process are far ...