Net flux sensors for the measurement of Mars surface radiation budget

Linh Ngo Phong; Anas Alazzam; Michael G. Daly; Christian Proulx; Francois Châteauneuf

doi:10.1117/12.909167

15 February 2012 Net flux sensors for the measurement of Mars surface radiation budget

Linh Ngo Phong, Anas Alazzam, Michael G. Daly, Christian Proulx, Francois Châteauneuf

Author Affiliations +

Proceedings Volume 8252, MOEMS and Miniaturized Systems XI; 82520A (2012) https://doi.org/10.1117/12.909167
Event: SPIE MOEMS-MEMS, 2012, San Francisco, California, United States

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.

Citation Download Citation

Linh Ngo Phong, Anas Alazzam, Michael G. Daly, Christian Proulx, and Francois Châteauneuf "Net flux sensors for the measurement of Mars surface radiation budget", Proc. SPIE 8252, MOEMS and Miniaturized Systems XI, 82520A (15 February 2012); https://doi.org/10.1117/12.909167

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