scholarly journals On the possibility of using thermal vision cameras for observations of meteors and other atmospheric formations in long wave infrared

2019 ◽  
pp. 33-38
Author(s):  
P. Kozak ◽  
L. Kozak
Keyword(s):  
Near Infrared ◽  
Low Cost ◽  
Ultra Violet ◽  
Short Wave ◽  
Infrared Observations ◽  
Long Wave ◽  
Thermal Vision ◽  
And Inversion ◽  
The Given ◽  
Long Wave Infrared

The characteristics of the modern low-cost thermal vision cameras for possible observations of meteors and other atmospheric formations in long wave infrared spectrum range of 8-14 μm are investigated. An overview of meteor observations in non-traditional spectrum ranges: ultra-violet, near infrared, short wave, mid wave, and long wave infrared is done. A short description of the modern instruments for infrared observations is presented. By the example of a modern inexpensive model of thermal vision camera of the lower price segment there are presented results of test observations of clouds, possible atmospheric bolide tails and inversion t tracks of airplanes, meteors, and thunderstorm discharges. A short analysis of technical characteristics of the selected model, and corresponding software is given, the merits and demerits of the given type of observational instruments are analyzed as well. The conclusion for outlook of using in the future the thermal vision cameras in meteor astronomy and geophysics is done.

scholarly journals Ga-La-S-Se glass for visible and thermal imaging

2017 ◽  
Vol 6 (2) ◽  
Author(s):  
Andrea Ravagli ◽  
Christopher Craig ◽  
John Lincoln ◽  
Daniel W. Hewak
Keyword(s):  
Thermal Imaging ◽  
Chalcogenide Glasses ◽  
Infrared Imaging ◽  
Low Cost ◽  
Short Wave ◽  
Infrared Transmission ◽  
New Family ◽  
Near Net Shape ◽  
Se Glass ◽  
Long Wave Infrared

AbstractChalcogenide glasses are emerging as important enabling materials for low-cost infrared imaging by virtue of their transparency in the key short-wave infrared (SWIR) to long-wave infrared (LWIR) bands and the ability to be mass produced and molded into near-net shape lenses. In this paper, we introduce a new family of chalcogenide glasses, which offer visible as well as infrared transmission and improved thermal and mechanical properties. These glasses are based on Ga

Earth Long-Wave Infrared Emission, New Ways to Harvest Energy

2015 ◽  
pp. 1-25
Author(s):  
Luciano Mescia ◽  
Pietro Bia ◽  
Onofrio Losito
Keyword(s):  
Low Cost ◽  
Dielectric Substrate ◽  
Infrared Emission ◽  
Long Wave ◽  
Challenges And Opportunities ◽  
Future Challenges ◽  
Recent Developments ◽  
Potential Applications ◽  
Long Wave Infrared ◽  
Thz Antennas

This chapter summarizes the physical properties of THz antennas, provides a summary of some of the most important recent developments in the field of energy harvesting of Earth long-wave infrared radiation, discusses the potential applications and identifies the future challenges and opportunities. In particular, a THz antenna is designed in order to transform the thermal energy, provided by the Sun and re-emitted from the Earth, in electricity. The proposed antenna is a square spiral of gold printed on a low cost dielectric substrate. Simulations have been conducted in order to investigate the behavior of the antenna illuminated by a circularly polarized plane wave with an amplitude chosen according to the Stefan-Boltzmann radiation law. Moreover, these THz antennas could be coupled with other components to obtain direct rectification of T radiation. As a consequence, these structures further optimized could be a promising alternative to the conventional photovoltaic solar cells.

scholarly journals Lithological mapping of East Tianshan area using integrated data fused by Chinese GF-1 PAN and ASTER multi-spectral data

2018 ◽  
Vol 10 (1) ◽  
pp. 532-543 ◽  
Author(s):  
Min Yang ◽  
Lei Kang ◽  
Huaqing Chen ◽  
Min Zhou ◽  
Jianghua Zhang
Keyword(s):  
Spectral Resolution ◽  
Near Infrared ◽  
Thermal Emission ◽  
Low Cost ◽  
Short Wave ◽  
Support Vector ◽  
Tianshan Mountain ◽  
Multispectral Data ◽  
Fusion Data ◽  
East Tianshan

Abstract The East Tianshan Mountain is one of the most important gold ore forming zones in northwestern China and central Asia. The Chinese GaoFen-1 (GF-1), the first Chinese high resolution satellite, is characterized by its 2-m resolution PAN data. The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), the well-known earth observation satellite, is advanced by its finer spectral resolution owing 9 bands in the visible and near infrared (VNIR) to the short-wave infrared (SWIR) region. In this study, we fused the GF-1 PAN and the ASTER multispectral data using the well-known Gram-Schmidt Pan Sharpening (G-S) method to produce a new data with both high spatial and spectral resolution. Then different lithological units were mapped respectively using the fusion data, the ASTER data and the WorldView-3 data by support vector machine (SVM) method. In order to assess this fusion data, a comparison work was executed among the three mapping results. The comparison work indicated that lithological classification using the new fusion data is an efficient, robust and low cost method, and it could replace the WV-3 data in some large sale geological work.

scholarly journals EFFECTS OF GLOBAL WARMING

2015 ◽  
Vol 3 (9SE) ◽  
pp. 1-2
Author(s):  
Basanti Jain
Keyword(s):  
Global Warming ◽  
Short Wave ◽  
Average Temperature ◽  
The Past ◽  
The Earth ◽  
Long Wave ◽  
The World ◽  
Abnormal Increase ◽  
Ionizing Radiations ◽  
Long Wave Infrared

The abnormal increase in the concentration of the greenhouse gases is resulting in higher temperatures. We call this effect is global warming. The average temperature around the world has increased about 1'c over 140 years, 75% of this has risen just over the past 30 years. The solar radiation, as it reaches the earth, produces "greenhouse effect" in the atmosphere. The thick atmospheric layers over the earth behaves as a glass surface, as it permits short wave radiations from coming in, but checks the outgoing long wave ones. As a result, gradually the atmosphere gets heated up during the day as well as night. If such an effect were not there in the atmosphere the ultraviolet, infrared and other ionizing radiations would have also entered our atmosphere and the very existence of life would have been endangered. The ozone layer shields the earth from the sun's harmful ultraviolet radiations. The warm earth emits long wave (infrared)   radiations, which is partly absorbed by the green house gaseous blanket. This atmospheric blanket raises the earth’s temperature.

Earth Long-Wave Infrared Emission, New Ways to Harvest Energy

2017 ◽  
pp. 1875-1899
Author(s):  
Luciano Mescia ◽  
Pietro Bia ◽  
Onofrio Losito
Keyword(s):  
Low Cost ◽  
Dielectric Substrate ◽  
Infrared Emission ◽  
Long Wave ◽  
Challenges And Opportunities ◽  
Future Challenges ◽  
Recent Developments ◽  
Potential Applications ◽  
Long Wave Infrared ◽  
Thz Antennas

This chapter summarizes the physical properties of THz antennas, provides a summary of some of the most important recent developments in the field of energy harvesting of Earth long-wave infrared radiation, discusses the potential applications and identifies the future challenges and opportunities. In particular, a THz antenna is designed in order to transform the thermal energy, provided by the Sun and re-emitted from the Earth, in electricity. The proposed antenna is a square spiral of gold printed on a low cost dielectric substrate. Simulations have been conducted in order to investigate the behavior of the antenna illuminated by a circularly polarized plane wave with an amplitude chosen according to the Stefan-Boltzmann radiation law. Moreover, these THz antennas could be coupled with other components to obtain direct rectification of T radiation. As a consequence, these structures further optimized could be a promising alternative to the conventional photovoltaic solar cells.

Design and Fabrication of Short-Wave /Long-Wave Infrared Dichroic Beam Splitter

2010 ◽  
Vol 30 (2) ◽  
pp. 597-601
Author(s):  
章岳光 Zhang Yueguang ◽  
王颖 Wang Ying ◽  
孙雪铮 Sun Xuezheng ◽  
沈伟东 Shen Weidong ◽  
刘旭 Liu Xu ◽  
...  
Keyword(s):  
Beam Splitter ◽  
Short Wave ◽  
Long Wave ◽  
Long Wave Infrared
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