To meet the increasing demand for reliable, low cost linear encoding, Renishaw works closely with our associate company RLS d.o.o., to produce a range of robust magnetic linear encoders and magnetic ring encoder systems for precision position feedback (for rotary applications, we also offer a range of magnetic rotary encoders).
Both systems are designed for use in harsh environments, such as woodworking, stone-cutting, sawing, metalworking, textiles, packaging, plastics processing, automation and assembly systems, laser/flame/water-jet cutting, and electronic chip/board production.
For linear encoding, a differential magnetoresistive sensor detects the magnetic signature of the magnetised scale, producing a sine and cosine signal as it moves along the scale. These analogue signals can then be interpolated internally to produce a range of resolutions to 1 um.
The same principle of operation can also be used for rotative measurements, be it full revolution or partial arc. For measurements requiring a full revolution special magnetic rings are used, whilst for partial arc measurements with a diameter of more than 60 mm the same magnetic scale as for linear measurements can be used.
Find full technical details of Renishaw's range of magnetic linear and magnetic ring encoders by clicking the links below to the main RLS d.o.o. website, speak directly to your local Renishaw office, or request further details.