For motion feedback measurements in high and ultra-high vacuum applications, NUMERIK JENA’s LIK 2 optical linear encoder series could provide the solution. Designed for environments with only 10-9 mBar of pressure, the 30mm x 11mm x 6mm sensor has a 20 micron grating period with the graduation applied to either a glass or steel scale substrate. With the ability to withstand a bake out for 12 hours at 130°C, the scanning units can provide a 1 V peak-to-peak or TTL output with resolutions down to 50 nanometers.
For more information about NUMERIK JENA’s LIK 2 optical linear encoder series, available in North America through HEIDENHAIN CORPORATION, contact is Kevin Kaufenberg (847-490-0387 or kkaufenberg@heidenhain.com).