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Shutter mechanism for spacecraft spectrophotometer (1972)

Weilbach, A.

In: CASI

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Publication Date: 2005-11-30

Description: A shutter mechanism is described for the backscatter ultraviolet spectrophotometer experiment on the Nimbus D satellite. The purpose of the experiment is to determine spatial distribution of atmospheric ozone from measurements of ultraviolet radiation backscattered by the earth's atmosphere. The system consists of two independent, rotary cylinder shutters, controlled by a dual star Geneva mechanism, and driven by a single stepper motor. A single driver controls a combination of two independently driven Geneva stars. Design considerations involved the use of low friction, nonmetallic materials.

Keywords: INSTRUMENTATION AND PHOTOGRAPHY

Type: NASA. Ames Res. Center 6th Aerospace Mech. Symp.; p 95-100

Format: text

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