Experimental Research of First Feed-Support System of FAST

Details Experimental Research of First Feed-Support System of FAST Experimental Research of First Feed-Support System of FAST

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003exa....15..113y&link_type=abstract

Experimental Astronomy, v. 15, Issue 2, p. 113-122 (2003).

Astronomy and Astrophysics

Astronomy

1

Fast, Feed, Feed Support System, Large Radio Telescope, Scaled Model, Ska

Scientific paper

First feed support system, which is one of the key technologies of Five hundred meter Aperture Spherical Telescope (FAST) was discussed in this paper. A 1:30 scaled model (20 m × 20 m × 6 m) has been built to make systemic research on the feasibility of the system. The root mean square of pointing error of moving cable car was measured and the displacements of cable car within the wind speed of 8 m/s, which is the maximal wind speed of the place where the FAST will be located, were evaluated. Then the total maximal pointing error of cable car was computed. Experimental results demonstrate that the total pointing error of the cable car is less than 50 cm, the required pointing accuracy error of the system.

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