Mechanical Measurements of the ALMA Prototype Antennas

Details Mechanical Measurements of the ALMA Prototype Antennas Mechanical Measurements of the ALMA Prototype Antennas

2007-10-30

arxiv.org/abs/0710.5629v1

Astronomy and Astrophysics

Astrophysics

13 pages, 29 figures, to appear in IEEE Antennas and Propagation Magazine, vol 50, no. 2, April 2008

Scientific paper

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, are compared to the antenna specifications.

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