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Proceedings Paper

The new classic instrument for the navy precision optical interferometer
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Paper Abstract

The New Classic instrument was built as a electronics and computer upgrade to the existing Classic beam combiner at the Navy Precision Optical Interferometer (NPOI). The classic beam combiner is able to record 32 of 96 available channels and has a data throughput limitation which results in a low duty cycle. Additionally the computing power of the Classic system limited the amount of fringe tracking that was possible. The New Classic system implements a high-throughput data acquisition system which is capable of recording all 96 channels continuously. It also has a modern high-speed computer for data management and data processing. The computer is sufficiently powerful to implement more sophisticated fringe-tracking algorithms than the Classic system, including multi-baseline bootstrapping. In this paper we described the New Classic hardware and software, including the fringe-tracking algorithm, performance, and the user interface. We also show some initial results from the first 5-station, 4-baseline bootstrapping carried out in January 2015.

Paper Details

Date Published: 4 August 2016
PDF: 8 pages
Proc. SPIE 9907, Optical and Infrared Interferometry and Imaging V, 990725 (4 August 2016); doi: 10.1117/12.2232682
Show Author Affiliations
A. M. Jorgensen, New Mexico Institute of Mining and Technology (United States)
H. R. Schmitt, U.S. Naval Research Lab. (United States)
J. T. Armstrong, U.S. Naval Research Lab. (United States)
E. K. Baines, U.S. Naval Research Lab. (United States)
R. Hindsley, U.S. Naval Research Lab. (United States)
D. Mozurkewich, Seabrook Engineering (United States)
G. T. van Belle, Lowell Observatory (United States)


Published in SPIE Proceedings Vol. 9907:
Optical and Infrared Interferometry and Imaging V
Fabien Malbet; Michelle J. Creech-Eakman; Peter G. Tuthill, Editor(s)

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