Characterization of errors in the use of integrating-sphere systems in the calibration of scanning radiometers

2007 ◽  
Vol 46 (31) ◽  
pp. 7640 ◽  
Author(s):  
Charles K. Gatebe ◽  
James J. Butler ◽  
John W. Cooper ◽  
Matthew Kowalewski ◽  
Michael D. King
Keyword(s):  
Integrating Sphere

Study of the effect introduced by an integrating sphere on the temporal profile characterization of short laser pulses propagating through a turbid medium

2015 ◽  
Vol 54 (9) ◽  
pp. 2383
Author(s):  
Beatriz Morales-Cruzado ◽  
Francisco G. Pérez-Gutiérrez ◽  
Dirk Frederik de Lange ◽  
Ricardo Romero-Méndez
Keyword(s):  
Laser Pulses ◽  
Turbid Medium ◽  
Integrating Sphere ◽  
Temporal Profile ◽  
Short Laser Pulses

scholarly journals Design of an inexpensive integrating sphere student laboratory setup for the optical characterization of light sources

2015 ◽  
Vol 37 (1) ◽  
pp. 015302
Author(s):  
Frédéric B Leloup ◽  
Sven Leyre ◽  
Eva Bauwens ◽  
Toon Van den Abeele ◽  
Peter Hanselaer
Keyword(s):  
Optical Characterization ◽  
Integrating Sphere ◽  
Light Sources ◽  
Laboratory Setup ◽  
Student Laboratory

Optical characterization of pancreatic normal and tumor tissues with double integrating sphere system

2015 ◽  
Author(s):  
Tugba Kiris ◽  
Saadet Akbulut ◽  
Aysenur Kiris ◽  
Zuhal Gucin ◽  
Oguzhan Karatepe ◽  
...  
Keyword(s):  
Optical Characterization ◽  
Integrating Sphere ◽  
Tumor Tissues

Development and specification of an accurate cosine-behaviour responsivity radiometer head for infrared temperature radiation

2017 ◽  
Vol 84 (12) ◽  
pp. 769-778
Author(s):  
Richard Dieter Taubert ◽  
Christian Monte ◽  
Christoph Baltruschat ◽  
Marco Schulz ◽  
Jörg Hollandt
Keyword(s):  
Integrating Sphere ◽  
Systematic Determination ◽  
Subsequent Measurement ◽  
Temperature Radiation ◽  
Comparison Measurements

Abstract In the framework of a cooperation between the Physikalisch-Technische Bundesanstalt (PTB) and the European Leading Association of Radiant Gas Heaters Manufacturers (ELVHIS e. V.), an integrating sphere based radiometer head with a cosine-behaviour responsivity was developed. This type of radiometer is applied for the metrological characterization of gas-fired infrared radiant heaters according to the standards DIN EN 416-2 and DIN EN 419-2. A systematic determination of the reflectance/emittance of differently surface texturized plane samples and a subsequent measurement of the angular resolved responsivity of a dedicated manufactured radiometer head prototype series enabled the development of an optimized manufacturing specification in terms of the surface texturizing/electroplating for the integrating sphere. Through comparison measurements employing a second prototype series, manufactured by the PTB and a selected industrial workshop, the manufacturing specification was successfully validated.

Characterization of the integrating sphere for the on-ground calibration of the SIMBIOSYS instrument for the BepiColombo ESA mission

2014 ◽  
Author(s):  
Vania Da Deppo ◽  
Elena Martellato ◽  
Guglielmo Rossi ◽  
Giampiero Naletto ◽  
Vincenzo Della Corte ◽  
...  
Keyword(s):  
Integrating Sphere ◽  
Ground Calibration

scholarly journals Spectral characterization of mangrove leaves in the Brazilian Amazonian Coast: Turiaçu Bay, Maranhão State

2007 ◽  
Vol 79 (4) ◽  
pp. 683-692 ◽  
Author(s):  
Flávia Rebelo-Mochel ◽  
Flávio J. Ponzoni
Keyword(s):  
Avicennia Germinans ◽  
Spectral Characterization ◽  
Integrating Sphere ◽  
Red Mangrove ◽  
Hemispherical Reflectance ◽  
Reflectance Factor ◽  
Detached Leaves ◽  
Mangrove Trees ◽  
Mangrove Communities

Mangrove communities are tropical systems which have fewer species than tropical forests, especially in Latin America and display a single architecture, usually lacking the various strata commonly found in other forest ecosystems. The identification of mangrove communities by orbital data is not a difficult task but the most interesting challenge is to identify themselves by the dominant species. The first step toward that floristic identification is the spectral characterization of detached leaves. Leaves from four species of mangrove trees were spectrally characterized considering the Directional Hemispherical Reflectance Factor (DHRF) determined through radiometric measurements using an integrating sphere LICOR 1800 attached to a spectroradiometer SPECTRON SE-590. In the visible bands (0.45-0.69 µm) the button-shaped mangrove Conocarpus erectus was brighter and the red mangrove Rhizophora mangle was darker than the other two species which shows very close DHRF values. Otherwise the black mangrove Avicennia germinans and the white mangrove Laguncularia racemosa can be distinguished from one another in the Near Infra Red (NIR) region (0.76-0.90 µm and in this region of the spectrum the DHRF of C. erectus and R. mangle become very close.

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