Share Email Print
cover

Proceedings Paper

Cryostat mechanism design and fabrication
Author(s): Tony T. Young; Jeffrey W. Douglass; Klaus-Werner Hodapp; Hubert Yamada; Ev Irvin; Louis Robertson
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The harsh operating environment of high vacuum and extremely low temperature poses several challenges to cryogenic mechanisms. These challenges include out-gassing, physical property change of metal and nonmetal materials, differential thermal shrinkage of different materials. Many motorized cryogenic mechanisms have been designed and fabricated for various IR instruments at the Institute for Astronomy. These mechanisms include detector focus stages, filter wheels, 2 and 3-position bema selectors, lens switchers, grating tilt stages and gimbal mirror mounts. Cryogenic motors are used for all these mechanisms. The following topics will be discussed in this paper: motor selection, material selection, stress relieve and surface treatment, ball bearing and ball screw selection and treatment, bushing materials, lubrication methods, flex pivots, and Hall effect sensors.

Paper Details

Date Published: 16 August 2000
PDF: 9 pages
Proc. SPIE 4008, Optical and IR Telescope Instrumentation and Detectors, (16 August 2000); doi: 10.1117/12.395459
Show Author Affiliations
Tony T. Young, Institute for Astronomy/Univ. of Hawaii at Manoa (United States)
Jeffrey W. Douglass, Institute for Astronomy/Univ. of Hawaii at Manoa (United States)
Klaus-Werner Hodapp, Institute for Astronomy/Univ. of Hawaii at Manoa (United States)
Hubert Yamada, Institute for Astronomy/Univ. of Hawaii at Manoa (United States)
Ev Irvin, Institute for Astronomy/Univ. of Hawaii at Manoa (United States)
Louis Robertson, Institute for Astronomy/Univ. of Hawaii at Manoa (United States)


Published in SPIE Proceedings Vol. 4008:
Optical and IR Telescope Instrumentation and Detectors
Masanori Iye; Alan F. M. Moorwood, Editor(s)

© SPIE. Terms of Use
Back to Top