References of "Guiot, Marc"
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See detailFast Ambient Pressure Thermal cycling of space solar arrays samples under equivalent AM0 illumination conditions
Guiot, Marc ULg; Fernandez Lisbona, Emilio; Witteveen, Bob et al

Conference (2014, June 08)

Detailed reference viewed: 13 (1 ULg)
See detailCryogenic and Thermal Control for Vacuum Facilities Development in KARI
Guiot, Marc ULg; Jamotton, Pierre ULg; Grodent, Christophe ULg et al

in CURRAN (Ed.) 26th Aerospace Testing Seminar 2011: Los Angeles, California, USA, 29 - 31 March 2011 (2011, March 29)

Detailed reference viewed: 10 (1 ULg)
See detailTurn key fully controlled thermal system for space applications
Guiot, Marc ULg; Jamotton, Pierre ULg; Grodent, Christophe ULg et al

in Turn key fully controlled thermal system for space applications (2009, October 12)

Detailed reference viewed: 8 (3 ULg)
See detailThermal System for Phenix, the New ESTEC Thermal Vacuum Chamber
Grodent, Christophe ULg; Guiot, Marc ULg; Jamotton, Pierre ULg

in Fletcher K. (Ed.) ESA-SP-639 (2007, September)

Detailed reference viewed: 80 (14 ULg)
See detailThe Herschel-PACS Grating Drive and its controller
Renotte, Etienne ULg; Callut, Eric ULg; Guiot, Marc ULg et al

(2003)

The Photodetector Array Camera and Spectrometer (PACS), on board the Herschel Space Observatory, is designed for imaging and spectroscopy in the wavelength region between 60 and 210 gm. This paper reports ... [more ▼]

The Photodetector Array Camera and Spectrometer (PACS), on board the Herschel Space Observatory, is designed for imaging and spectroscopy in the wavelength region between 60 and 210 gm. This paper reports the design of the grating cryogenic mechanism of the PACS spectrometer and its remote controller (DEC/MEC) located on the outside of the Herschel cryostat. The PACS grating shall be capable of accurate positioning (4 arcsec) within a large angular stroke (40 arcdeg) in cryogenic environment (4.2 K). Technologies of actuators, position sensors, pivots, dry lubricants, servo-control and cryogenic test set-up are presented. At the other end of the Herschel 10-meter high-impedance cryogenic harness, the DEC/MEC consists of DSP processor-based electronics that control and synchronise the cold focal plane mechanisms and infrared detector arrays. The DEC/MEC operates an on board software running under a real-time operating system. Technologies involved in the control electronics are discussed and correlated to validation tests conducted with actual hardwares. [less ▲]

Detailed reference viewed: 96 (18 ULg)
See detailA Test Cryostat for Herschel-PACS Mechanism
Renotte, Etienne ULg; Barzin, Pascal ULg; Guiot, Marc ULg et al

in SCHÜRMANN B. (Ed.) ESA-SP-467 (2001, September)

The PACS Grating Assembly consists of a flat ruled grating of 320x80 mm²; its positioning mechanism; and launch-locking system. The Grating Assembly is part of the PACS Focal Plane Unit (FPU) and is ... [more ▼]

The PACS Grating Assembly consists of a flat ruled grating of 320x80 mm²; its positioning mechanism; and launch-locking system. The Grating Assembly is part of the PACS Focal Plane Unit (FPU) and is operated at liquid helium temperature (4K). It is remote-controlled from the Detector & Mechanism Controller (DEC/MEC), which is located on the Herschel Service Module. The grating shall be capable of accurate positioning (4 arcsec) within a large angular throw (40 arcdeg) and restricted dissipation to the 4K heat sink (< 5 mW). The development of the Grating mechanism controller has urged the need for a cryogenic simulator of the Grating Assembly with regard to the large change in value of mechanical and electrical characteristics between room temperature and liquid helium temperature. The simulator consists of a functional prototype of the Grating Assembly and a dedicated helium cryostat with appropriate interfaces. The test cryostat is a homemade facility (CSL) designed to cool down the prototype (and subsequent models) to liquid helium temperature. The test set-up also provides relevant instrumentation such as cryogenic temperature read-out, electrical feedthroughs toward the payload and optical viewport. [less ▲]

Detailed reference viewed: 37 (7 ULg)