The VLTI fringe sensors: FINITO and PRIMA FSU

被引：37

作者：

Gai, M ^{[1
]}

Menardi, S ^{[1
]}

Cesare, S ^{[1
]}

Bauvir, B ^{[1
]}

Bonino, D ^{[1
]}

Corcione, L ^{[1
]}

Dimmler, M ^{[1
]}

Massone, G ^{[1
]}

Reynaud, F ^{[1
]}

Wallander, A ^{[1
]}

机构：

[1] Osserv Astron Torino, Ist Naz Astrofis, I-10025 Pino Torinese, Italy

来源：

NEW FRONTIERS IN STELLAR INTERFEROMETRY, PTS 1-3 | 2004年 / 5491卷

关键词：

instrumentation : interferometers; techniques; interferometric; instrumentation : high angular resolution;

D O I：

10.1117/12.551495

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

FINITO is the first generation VLTI fringe sensor, optimised for three beam observations, recently installed at Paranal and currently used for VLTI optimisation. The PRIMA FSU is the second generation, optimised for astrometry in dual-feed mode, currently in construction. We discuss the constraints of fringe tracking at VLTI, the basic functions required for stabilised interferometric observations, and their different implementation in the two instruments, with remarks on the most critical technical aspects. We provide an estimate of the expected performance and describe some of their possible observing and calibration modes, with reference to the current scientific combiners.

引用

页码：528 / 539

页数：12

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