EMIR electronics and mechanism control

Fernando Gago; Jose J. Diaz; Pablo Redondo; Carlos Gonzalez; Francis Beigbeder; Yvan Chapon; Francisco Garzon; Jesus Patron

doi:10.1117/12.550506

30 September 2004 EMIR electronics and mechanism control

Fernando Gago, Jose J. Diaz, Pablo Redondo, Carlos Gonzalez, Francis Beigbeder, Yvan Chapon, Francisco Garzon, Jesus Patron

Author Affiliations +

Proceedings Volume 5492, Ground-based Instrumentation for Astronomy; (2004) https://doi.org/10.1117/12.550506
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

EMIR is a multiobject intermediate resolution near infrared (1.0-2.5 microns) spectrograph with image capabilities to be mounted on the 10m Gran Telescopio de Canarias (GTC), located on the Spanish island of La Palma. This paper shows an overview of the EMIR electronics and mechanism control. First, a description of the detector (a Hawaii-2 array) electronics is given, which involves the use of commercial components (resistors, capacitors and operational amplifiers) working under cryogenic conditions (around 77K). This paper describes the particularities of the cold electronics, showing the problems found and the way to solve them. Preliminary results of the detector characterization are also presented in this paper. Secondly, an overview of the different mechanisms of the instrument is presented. They are cryogenic mechanisms with pretty stringent positioning requirements. The technological solutions used to meet the tight control requirements will be described.

Citation Download Citation

Fernando Gago, Jose J. Diaz, Pablo Redondo, Carlos Gonzalez, Francis Beigbeder, Yvan Chapon, Francisco Garzon, and Jesus Patron "EMIR electronics and mechanism control", Proc. SPIE 5492, Ground-based Instrumentation for Astronomy, (30 September 2004); https://doi.org/10.1117/12.550506

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