Title :
Mechanical Measurements of the ALMA Prototype Antennas
Author :
Greve, Albert ; Mangum, Jeff
Author_Institution :
Inst. de Radio Astron. Millimetrique, Domaine Univ., St. Martin d´´Heres
fDate :
4/1/2008 12:00:00 AM
Abstract :
The specifications of the Atacama large millimeter array (ALMA) have placed stringent requirements on the mechanical performance of its antennas. As part of the evaluation process of the VertexRSI and Alcatel EIE Consortium (AEC) ALMA prototype antennas, measurements of the path length, thermal, and azimuth bearing performance were made under a variety of weather conditions and observing modes. The results of mechanical measurements, reported here, were compared to the antenna specifications.
Keywords :
Aluminum; Antenna measurements; Antennas and propagation; Extraterrestrial measurements; Mechanical variables measurement; Observatories; Prototypes; Radio astronomy; Steel; Testing;
Journal_Title :
Antennas and Propagation Magazine, IEEE
DOI :
10.1109/MAP.2008.4562258
