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Proceedings Paper

Net flux sensors for the measurement of Mars surface radiation budget
Author(s): Linh Ngo Phong; Anas Alazzam; Michael G. Daly; Christian Proulx; Francois Châteauneuf
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Paper Abstract

This paper reports on a net flux sensor being devised as part of a network of meteorological sensors for the acquisition of surface data of Mars. The characteristics of the measuring configuration and source of error that drive the sensor design are examined. The pyranometers and pyrgeometers of the sensor use double platform microbolometers with gold black coating for the measurement of radiative fluxes in the spectral range from 0.3 to 50 μm. The microbolometer detector exhibits a typical responsivity of ~ 1.8×104 V/W and a time constant of ~ 14 ms at the pixel level. The reflectance data confirm that the gold black absorbs more than 98 % of the incident light in the range from 0.2 to 20 μm, while the absorptance exceeds 94% for wavelengths up to 100 μm. The detector transfer function is derived to assist in the characterization of net flux sensor. The experimental sensor modules, which differ in the spectral band and field of view, are designed to be interchangeable on the same node of a sensor network. The network is intended for the evaluation of the sensor performance and measurement configuration in analog field experiments.

Paper Details

Date Published: 15 February 2012
PDF: 12 pages
Proc. SPIE 8252, MOEMS and Miniaturized Systems XI, 82520A (15 February 2012); doi: 10.1117/12.909167
Show Author Affiliations
Linh Ngo Phong, Canadian Space Agency (Canada)
Anas Alazzam, Canadian Space Agency (Canada)
Michael G. Daly, York Univ. (Canada)
Christian Proulx, INO (Canada)
Francois Châteauneuf, INO (Canada)

Published in SPIE Proceedings Vol. 8252:
MOEMS and Miniaturized Systems XI
Harald Schenk; Wibool Piyawattanametha; Wilfried Noell, Editor(s)

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