Mechanical design of GHIS brassboard

Darryl E. Weidler

doi:10.1117/12.254131

18 October 1996 Mechanical design of GHIS brassboard

Darryl E. Weidler

Proceedings Volume 2812, GOES-8 and Beyond; (1996) https://doi.org/10.1117/12.254131
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

The GHIS optics assembly was designed as a replacement for the filter wheel assembly in an upgraded GOES Sounder sensor of the year 2000 +. An overview of the entire effort is presented elsewhere in these proceedings. The assembly includes miniature optics consisting of a Michelson interferometer with compatible input and output optics. It is to be aligned at room temperature and operated at -55 degrees C without realignment; therefore, an athermal design approach was chosen. Several aspects of the opto-mechanical design will be discussed herein, namely: the support, attachment, and adjustment of the miniature optics; investigation and fabrication of various types of aluminum mirrors; a remotely adjusted mirror for on-orbit alignment using PZT actuators; a moving-mirror supported on a leaf- spring, flexure mechanism moved by a voice-coil actuator; a laser, reference-beam, optical assembly, with fiber optic input and output, to control the velocity and position of the moving-mirror; the support structure; and the thermal control design.

Citation Download Citation

Darryl E. Weidler "Mechanical design of GHIS brassboard", Proc. SPIE 2812, GOES-8 and Beyond, (18 October 1996); https://doi.org/10.1117/12.254131

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