Design and critical technology breadboarding of a high-resolution thermal infrared radiometer (HRTIR)

Dominique Dubet; Alberto S. Menardi; Roland Meynart; Louis-Pascal Angebault; Jean-Paul Chamonal; Siegfried I. Craubner; Andrea Novi

doi:10.1117/12.185254

13 September 1994 Design and critical technology breadboarding of a high-resolution thermal infrared radiometer (HRTIR)

Dominique Dubet, Alberto S. Menardi, Roland Meynart, Louis-Pascal Angebault, Jean-Paul Chamonal, Siegfried I. Craubner, Andrea Novi

Author Affiliations +

Proceedings Volume 2209, Space Optics 1994: Earth Observation and Astronomy; (1994) https://doi.org/10.1117/12.185254
Event: Space Optics '94, 1994, Garmisch, Germany

Abstract

HRTIR for High Resolution Thermal Infrared Radiometer is an earth observation instrument candidate to the European Space Agency polar platform beyond Envisat 1. A preliminary design of the instrument has been performed in order to identify the most critical points and breadboard them. The instrument is a push broom concept providing an on ground spatial resolution of 50 m for a swath width of 50 km and a temperature sensitivity of 0.1 K in 3 spectral bands in the 8 to 12.5 micrometers range. A compact dioptric system has been selected for the optics and the focal plane consists of three linear arrays of 1000 HgCeTe photovoltaic elements hybridized on a CCD multiplexer and cooled down to 50 K inside a cryostat by mechanical cryocoolers. The HgCdTe IRCCD with a cut-off wavelength longer than 12.5 micrometers has been identified as the most critical technology and breadboarded. A complete detection chain with a long wavelength linear array of 222 pixels obtained by butting of three sub-arrays, a CCD multiplexer, a driving and processing electronics up to digital signal has been manufactured. The linear array is housed in a cryostat similar to the foreseen flight model but coupled to a laboratory cryogenic system. The IRCCD has been tested at unit level and the complete detection chain have been characterized in laboratory in conditions close to the flight. The test results have demonstrated the feasibility of the IRCCD at long wavelength with excellent performances. The instrument radiometric performances have been validated from the breadboard test results.

Citation Download Citation

Dominique Dubet, Alberto S. Menardi, Roland Meynart, Louis-Pascal Angebault, Jean-Paul Chamonal, Siegfried I. Craubner, and Andrea Novi "Design and critical technology breadboarding of a high-resolution thermal infrared radiometer (HRTIR)", Proc. SPIE 2209, Space Optics 1994: Earth Observation and Astronomy, (13 September 1994); https://doi.org/10.1117/12.185254

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
12 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Sensors

Electronics

Thermography

Signal detection

Calibration

Interference (communication)

Refractor telescopes

Show All Keywords

Keywords/Phrases

Search In:

Publication Years