Infrared observations of the solar system in support of Large Aperture Infrared Telescope (LARITS): Calibration. Appendices

Details Infrared observations of the solar system in support of Large Aperture Infrared Telescope (LARITS): Calibration. Appendices Infrared observations of the solar system in support of Large Aperture Infrared Telescope (LARITS): Calibration. Appendices

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990utah.reptr....s&link_type=abstract

Final Technical Report, 1 Jul. 1985 - 28 Feb. 1989 Utah Univ., Salt Lake City. Dept. of Mechanical Engineering.

Astronomy and Astrophysics

Astronomy

Apertures, Calibrating, Infrared Astronomy, Infrared Detectors, Infrared Telescopes, Astronomical Observatories, Automatic Control, Infrared Tracking, Mirrors, Optical Tracking, Portable Equipment, Stepping Motors, Tracking (Position)

Scientific paper

An infrared (IR) optics package designed for a IR detector calibration survey will be used in conjunction with the 90 inch telescope at the University of Wyoming, or as a portable, stand along unit. An important part of this instrument package is a mechanical light beam chopper which rotates with a fixed phase relation with respect to a wobbling secondary mirror in the telescope. A control circuit synchronizes the chopper to an external signal when used at the Wyoming site, or generates an internal reference frequency when used as a portable system. The portable system consists of a small equatorial telescope mount to support the same IR instrumentation package, which is used without additional optics. An automated positioning and tracking system encorporates a personal computer to control the environment of the telescope mount via stepper motors attached to the drive axis. The computer is also used to record all data on floppy disc for both fixed and portable systems.

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