Optical Chopper Assembly for the Mars Observer

Details Optical Chopper Assembly for the Mars Observer Optical Chopper Assembly for the Mars Observer

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aems.nasa..165a&link_type=abstract

In NASA. Ames Research Center, The 27th Aerospace Mechanisms Symposium p 165-180 (SEE N94-29627 08-15)

Computer Science

Infrared Radiometers, Light Modulation, Mars Observer, Modulators, Optical Equipment, Pressure Modulator Radiometers, Reflectors, Bearings, Mars (Planet), Mirrors, Motors, Planetary Mapping

Scientific paper

This paper describes the Honeywell-developed Optical Chopper Assembly (OCA), a component of Mars Observer spacecraft's Pressure Modulator Infrared Radiometer (PMIRR) science experiment, which will map the Martian atmosphere during 1993 to 1995. The OCA is unique because of its constant accurate rotational speed, low electrical power consumption, and long-life requirements. These strict and demanding requirements were achieved by use of a number of novel approaches.

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