Characterization of the dimensional stability of advanced metallic materials using an optical test bench structure

Cheng Hsieh; Timothy P. O'Donnell

doi:10.1117/12.48860

1 December 1991 Characterization of the dimensional stability of advanced metallic materials using an optical test bench structure

Cheng Hsieh, Timothy P. O'Donnell

Author Affiliations +

Proceedings Volume 1533, Optomechanics and Dimensional Stability; (1991) https://doi.org/10.1117/12.48860
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

The performance requirements for long life, high-resolution ultraviolet and visible wavelength remote-sensing spacecraft instruments are very stringent with respect to dimensional stability. For example, full focus budges for instruments such as the Jet Propulsion Laboratory (JPL) CRAF/Cassini spacecraft imaging science subsystem and the California Institute of Technology/JPL Mars Observer Camera are in the range of 0.1 micrometers per centimeter of focal length. Advanced materials having low density, high specific strength and stiffness, and good dimensional stability offer design flexibility and new opportunities to develop more sophisticated remote sensing instruments. This paper reports a study to evaluate the dimensional stability of two classes of low-density, high specific strength metal matrix composites and an aluminum-lithium-magnesium metal alloy.

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Cheng Hsieh and Timothy P. O'Donnell "Characterization of the dimensional stability of advanced metallic materials using an optical test bench structure", Proc. SPIE 1533, Optomechanics and Dimensional Stability, (1 December 1991); https://doi.org/10.1117/12.48860

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