Physics – Optics
Scientific paper
Jul 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990spie.1235..108s&link_type=abstract
IN: Instrumentation in astronomy VII; Proceedings of the Meeting, Tucson, AZ, Feb. 13-17, 1990 (A91-29601 11-35). Bellingham, WA
Physics
Optics
6
Attitude Control, Balloon-Borne Instruments, Infrared Spectroscopy, Infrared Telescopes, Onboard Equipment, Airborne/Spaceborne Computers, Aluminum Alloys, Cassegrain Optics, Far Infrared Radiation, Mirrors, Power Amplifiers, Servocontrol
Scientific paper
The Japanese-made Balloon-borne Infrared Telescope (BIRT) designed for FIR astronomy is described. The BIRT system includes a 50-cm-diam telescope; an attitude-control system consisting of an attitude stabilization and a pointing and tracking subsystems; the ground support system consisting of four personal-computer systems; and electronics consisting of three small computer systems, servo circuits, power amplifiers, and other small circuits. Between 1985 and 1988, the BIRT has flown eight times, demonstrating that it is able to provide a suitable telescope observations on a stable platform with a long integration time. Structural diagrams of the BIRT overall system, the optical system, and the wobbling mechanism are presented along with a block diagram of the on-board electronics.
Maihara Toshinori
Nakagawa Takao
Okuda Haruyuki
Shibai Hiroshi
Yajima Nobuyuki
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