Cryogenic tip-tilt mechanism for an astronomical instrument

The development of astronomical instruments has always been a field where precision engineering and optical design meet. Latest developments also involve the implementation of precision engineering and mechatronic control in cryogenic environments. With almost twenty years of experience in precision engineering, in both ambient and vacuum environments, Janssen Precision Engineering has over the years expanded its working field to the cryogenic environment. A recent activity is the development of a cryogenic tip-tilt mechanism for a future astronomical instrument.

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References

Order of frictions and stiffnesses…

For lumped systems consisting of different frictions and stiffnesses, there has been confusion in literature about hysteresis curves and virtual play for many decades.

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