A typical linear encoder consists of a scanning unit and a scale. The scale is generally glass and is cemented to a support, usually an aluminum extrusion. The scanning unit contains a light source, ...

Renishaw (www.renishaw.com) has developed new linear encoders that feature a special stainless steel scale, ultralow ±30 nm cyclic error, patented filtering optics ...

There are a growing number of applications, especially in the photonic and semiconductor industries, that need fast and accurate motion-control systems using high-quality signals with periods of 4 ...