Net flux sensors for the measurement of Mars surface radiation budget

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

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

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 ∼ 1.8×10 4 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.

Original languageBritish English
Title of host publicationMOEMS and Miniaturized Systems XI
DOIs
StatePublished - 2012
EventMOEMS and Miniaturized Systems XI - San Francisco, CA, United States
Duration: 24 Jan 201225 Jan 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8252
ISSN (Print)0277-786X

Conference

ConferenceMOEMS and Miniaturized Systems XI
Country/TerritoryUnited States
CitySan Francisco, CA
Period24/01/1225/01/12

Keywords

  • Mars meteorology
  • microbolometer
  • net flux sensor
  • surface radiation budget

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