Dish precision of a highly accurate radio telescope

Details Dish precision of a highly accurate radio telescope Dish precision of a highly accurate radio telescope

Jan 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977tmkf...35...17b&link_type=abstract

Technische Mitteilungen Krupp, Forschungsberichte, vol. 35, Jan. 1977, p. 17-31. In German.

Astronomy and Astrophysics

Astronomy

Millimeter Waves, Parabolic Reflectors, Radio Astronomy, Radio Telescopes, Structural Design, Accuracy, Antenna Design, Design Analysis, Interstellar Matter, Reflecting Telescopes, Reinforced Shells, Two Reflector Antennas

Scientific paper

The paper describes the design concept and development of a 4-meter precision radio telescope for the high-frequency region up to 300 GHz. Errors in the shape of the main dish due to static loads are analyzed, and the general features of a finite-element procedure for minimizing the rms deviations from the ideal paraboloid form under standard loads due to temperature and wind are described. Techniques for measuring the form precision of the dish are described. Special procedures for laying out the reflector surface yielded panel precisions of 0.05-0.06 mm rms.

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