Digital holographic interferometry in the long-wave infrared and temporal phase unwrapping for measuring large deformations and rigid body motions of segmented space detector in cryogenic test

2016 ◽  
Vol 55 (12) ◽  
pp. 121723 ◽  
Author(s):  
Jean-François Vandenrijt ◽  
Cédric Thizy ◽  
Laurent Martin ◽  
Florent Beaumont ◽  
José Garcia ◽  
...  
Keyword(s):  
Rigid Body ◽  
Holographic Interferometry ◽  
Large Deformations ◽  
Phase Unwrapping ◽  
Temporal Phase ◽  
Long Wave ◽  
Rigid Body Motions ◽  
Long Wave Infrared

scholarly journals Digital Holographic Interferometry in the Long-Wave Infrared for the Testing of Large Aspheric Space Reflectors

Fringe 2013 ◽  
2014 ◽  
pp. 921-924
Author(s):  
Jean-François Vandenrijt ◽  
Cédric Thizy ◽  
Yvan Stockman ◽  
Patrick Queeckers ◽  
Frank Dubois ◽  
...  
Keyword(s):  
Holographic Interferometry ◽  
Long Wave ◽  
Long Wave Infrared

Long-wave infrared digital holographic interferometry with diffuser or point source illuminations for measuring deformations of aspheric mirrors

2014 ◽  
Vol 53 (11) ◽  
pp. 112309 ◽  
Author(s):  
Jean-François Vandenrijt ◽  
Cédric Thizy ◽  
Patrick Queeckers ◽  
Frank Dubois ◽  
Dominic Doyle ◽  
...  
Keyword(s):  
Point Source ◽  
Holographic Interferometry ◽  
Long Wave ◽  
Long Wave Infrared

scholarly journals Digital Holographic Interferometry by Using Long Wave Infrared Radiation (CO2 Laser)

2010 ◽  
Vol 24-25 ◽  
pp. 147-152 ◽  
Author(s):  
Igor Alexeenko ◽  
Jean François Vandenrijt ◽  
Marc Georges ◽  
Giancarlo Pedrini ◽  
Thizy Cédric ◽  
...  
Keyword(s):  
Co2 Laser ◽  
Spectral Range ◽  
Holographic Interferometry ◽  
Infrared Radiation ◽  
Experimental Results ◽  
Advantages And Disadvantages ◽  
Infrared Spectral Range ◽  
Long Wave ◽  
Infrared Spectral ◽  
Long Wave Infrared

We show how digital holographic interferometry in the Long Wave InfraRed spectral range (LWIR) can be used for the investigation of mechanical structures. The 10.6 μm radiation is produced by a CO2 Laser. Experimental results showing that the method can be used to locate defects in a panel are presented and advantages and disadvantages of this approach are discussed.

RxCADRE 2008: Wildfire Airborne Sensor Program - Lite uncalibrated long wave infrared image mosaics

2016 ◽  
Author(s):  
Andrew T. Hudak ◽  
Benjamin C. Bright ◽  
Robert L. Kremens ◽  
Matthew B. Dickinson ◽  
Matthew G. Alden
Keyword(s):  
Infrared Image ◽  
Long Wave ◽  
Long Wave Infrared

scholarly journals A Bi-Spectral Microbolometer Sensor for Wildfire Measurement

Sensors ◽  
2021 ◽  
Vol 21 (11) ◽  
pp. 3690
Author(s):  
Denis Dufour ◽  
Loïc Le Noc ◽  
Bruno Tremblay ◽  
Mathieu N. Tremblay ◽  
Francis Généreux ◽  
...  
Keyword(s):  
Low Resource ◽  
Long Wave ◽  
Radiative Power ◽  
Infrared Radiances ◽  
Moderate Scale ◽  
Long Wave Infrared ◽  
Detector Type ◽  
Experimental Burns ◽  
Fire Radiative Power

This study describes the development of a prototype bi-spectral microbolometer sensor system designed explicitly for radiometric measurement and characterization of wildfire mid- and long-wave infrared radiances. The system is tested experimentally over moderate-scale experimental burns coincident with FLIR reference imagery. Statistical comparison of the fire radiative power (FRP; W) retrievals suggest that this novel system is highly reliable for use in collecting radiometric measurements of biomass burning. As such, this study provides clear experimental evidence that mid-wave infrared microbolometers are capable of collecting FRP measurements. Furthermore, given the low resource nature of this detector type, it presents a suitable option for monitoring wildfire behaviour from low resource platforms such as unmanned aerial vehicles (UAVs) or nanosats.

Long-wave infrared sub-monolayer quantum dot quantum cascade photodetector

2020 ◽  
pp. 1-1
Author(s):  
Zhijian Shen ◽  
Zhuo Deng ◽  
Xuyi Zhao ◽  
Jian Huang ◽  
Lu Yao ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Quantum Cascade ◽  
Long Wave ◽  
Long Wave Infrared
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