A company known for long-lasting miniature scales and small profile scanning units now manufactures a line of encoders that are non-magnetic. These linear and rotary encoders have been tested in environments up to six Tesla and have no influence on the machine environment. The encoders can also withstand a high magnetic environment without loss of accuracy or resolution and are mechanically stable. Non-magnetic encoders are commonly found in MRI machines, as well as semiconductor and microscopy fields.
The non-magnetic LIK linear series has a 20 micron graduation on glass while digital versions output resolutions to 50 nanometers. Digitizing electronics reside in the connector.
The LIK series is said to provide excellent motion feedback for high magnetic environments thanks to sufficient mounting tolerances in the scanning unit in relation to the 20 micron scale, and three ways to mount the scanning unit.
The RIK rotary series is a kit style bearingless rotary encoder that includes a disk with various diameters and line counts, and non-magnetic scanning units to match those diameters. Various sized aluminum disks containing a 20 micron graduation can be epoxied to a hub. Manufacturer Numerik Jena can also fix disks to custom hubs at the factory with exact specifications and lowest run-out errors.
Filed Under: Encoders, News