EMIR electronics and mechanism control

被引：4

作者：

Gago, F ^{[1
]}

Díaz, JJ ^{[1
]}

Redondo, P ^{[1
]}

González, C ^{[1
]}

Beigbeder, F ^{[1
]}

Chapon, Y ^{[1
]}

Garzón, F ^{[1
]}

Patrón, J ^{[1
]}

机构：

[1] Inst Astrofis Canarias, E-38200 San Cristobal la Laguna, Tenerife, Spain

来源：

GROUND-BASED INSTRUMENTATION FOR ASTRONOMY, PTS 1-3 | 2004年 / 5492卷

关键词：

EMIR; infrared detector; cold electronics; Hawaii-2; cryogenic mechanisms;

D O I：

10.1117/12.550506

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

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.

引用

页码：1280 / 1289

页数：10