Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982spie..331..243k&link_type=abstract
IN: Instrumentation in astronomy IV; Proceedings of the Fourth Conference, Tucson, AZ, March 8-10, 1982 (A83-31976 14-35). Belli
Astronomy and Astrophysics
Astronomy
5
Pointing Control Systems, Reflecting Telescopes, Astronomical Spectroscopy, Mechanical Drives, Minicomputers, Mirrors, Mounting, Numerical Control, Remote Control, Servomechanisms
Scientific paper
The 1.4 m CoudeAuxiliary Telescope (CAT) was designed as an auxiliary telescope for the ESO 3.6 m telescope. It will be used together with the CoudeEchelle Spectrograph (CES) whenever the 3.6 m instrument is used in the Cassegrain or prime focus. The main objective of this arrangement is to increase the operating time of the CES. The telescope has been equipped with a direct drive system consisting of a torque motor connected directly to the shaft without any reduction gear. The total weight of the CAT is only 16 tons. The optical system in the CAT has only three reflecting surfaces. The control system is built around a minicomputer, which is connected to the telescope through a standard ESO interface system.
Klim K.
Ziebell M.
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