Title :
Correcting secondary mirror surface errors in Noto 32 m radiotelescope using the ´active´ primary mirror
Author :
Bolli, P. ; Grueff, G.
Author_Institution :
Inst. of Radio Astron., Italian Nat. Res. Council, Bologna, Italy
fDate :
3/6/2003 12:00:00 AM
Abstract :
Some results are presented of a successful attempt to correct the surface manufacturing errors on the secondary mirror of the Noto 32 m radiotelescope by means of a new primary mirror, the shape of which is controlled by 244 electromechanical actuators. During a 43 GHz Jupiter observation, the technique yielded a 22% gain increase.
Keywords :
actuators; error compensation; radiotelescopes; reflector antennas; 32 m; 43 GHz; Cassegrain antenna; Noto radiotelescope; active primary mirror; electromechanical actuators; gain improvement; mirror surface errors correction; secondary deformations; secondary mirror surface errors; surface manufacturing errors;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030285
