THE AMiBA HEXAPOD TELESCOPE MOUNT
| Autor: | Peter Oshiro, Klaus Willmeroth, Chao-Te Li, Yu-Wei Liao, Pierre Martin-Cocher, Hiroaki Nishioka, Philippe Raffin, Chih-Chiang Han, Shu Hao Chang, Guillaume Chereau, Konrad Pausch, Mark Birkinshaw, Pablo Altamirano, Michael Kesteven, Katy Lancaster, Chia-Hao Chang, Su-Wei Chang, Sandor M. Molnar, Kai-Yang Lin, F. Patt, Patrick M. Koch, K. Y. Lo, Homin Jiang, Fabiola Ibanez-Romano, Guo-Chin Liu, Derek Kubo, Ke-Jung Chen, Tashun Wei, Tzihong Chiueh, Fu-Cheng Wang, Yau-De Huang, Jiun-Huei Proty Wu, Robert N. Martin, Bob Romeo, Chih-Wei Locutus Huang, Ming-Tang Chen, Keiichi Umetsu, Paul T. P. Ho |
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| Rok vydání: | 2009 |
| Předmět: |
Universal joint
Physics Hexapod Cosmology and Nongalactic Astrophysics (astro-ph.CO) business.industry FOS: Physical sciences Astronomy and Astrophysics Astrophysics Mount law.invention Computer Science::Robotics Azimuth Telescope Photogrammetry Optics Space and Planetary Science law Control system Telescope mount Astrophysics - Instrumentation and Methods for Astrophysics business Instrumentation and Methods for Astrophysics (astro-ph.IM) Astrophysics - Cosmology and Nongalactic Astrophysics |
| Zdroj: | The Astrophysical Journal. 694:1670-1684 |
| ISSN: | 1538-4357 0004-637X |
| DOI: | 10.1088/0004-637x/694/2/1670 |
| Popis: | AMiBA is the largest hexapod astronomical telescope in current operation. We present a description of this novel hexapod mount with its main mechanical components -- the support cone, universal joints, jack screws, and platform -- and outline the control system with the pointing model and the operating modes that are supported. The AMiBA hexapod mount performance is verified based on optical pointing tests and platform photogrammetry measurements. The photogrammetry results show that the deformations in the inner part of the platform are less than 120 micron rms. This is negligible for optical pointing corrections, radio alignment and radio phase errors for the currently operational 7-element compact configuration. The optical pointing error in azimuth and elevation is successively reduced by a series of corrections to about 0.4 arcmin rms which meets our goal for the 7-element target specifications. Comment: Accepted for ApJ, 33 pages, 15 figures |
| Databáze: | OpenAIRE |
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