Cryogenic Stuff (hardware) 1

[WilliamHerschel]

Trying to re-engineer a mechanism which is cooled to 77K. The motors and microswitches keep failing at these temps. I need to change things. Does anyone have any suppliers of cryogenic rated microswitches and encoders. I need high repeatability so need a datum switch and step counting is not working to well. Small ones are essential due to tight space sonstraints.

cheers

 

[Maui]

Try the following websites for information on motor drives and microswitches for use at cryogenic temperatures:

http://www.grc.nasa.gov/

http://WWW/spacemech/vol1.html

http://www.estec.esa.nl/conferences/FPD/info/tos-mm000127.html

Maui