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Wyszukujesz frazę "sky temperature" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Method of Measurement of Low Sky Temperature Using Infrared Camera
Autorzy:
Kruczek, Tadeusz
Powiązania:
https://bibliotekanauki.pl/articles/114300.pdf
Data publikacji:
2019
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
thermovision measurements
open air space
radiation ambient temperature
radiation sky temperature
Opis:
During thermovision measurement in an open atmospheric space, the surroundings consists of two elements: the ground surface and apparent surface of the sky. To determine the equivalent ambient temperature it is necessary to know the temperature of the sky [3, 4]. It has been proposed to measure the temperature distribution of the sky using an infrared camera. However, such a measurement has a problem because often the temperature of the sky is too low to measure its value with an IR camera. The article presents a method for measuring the low temperature of the sky with a value outside the measuring range of the IR camera. The method consists in making a measurement with artificial values of measurement parameters that ensure obtaining the temperature value belonging to the measuring range of the camera. Then, using the developed algorithm, the obtained temperature value is converted to the actual conditions.
Źródło:
Measurement Automation Monitoring; 2019, 65, 1; 11-14
2450-2855
Pojawia się w:
Measurement Automation Monitoring
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of the Detector Characteristic on the Result of Sky Temperature Measurement with the Use of Long-Wave Infrared Camera
Autorzy:
Kruczek, T.
Powiązania:
https://bibliotekanauki.pl/articles/114666.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
thermovision infrared measurements
sky thermal radiation
sky temperature
characteristic of infrared camera detector
Opis:
During the temperature measurements by means of infrared camera the temperature of surrounding elements must be known. In the case of thermovision inspections of the objects exposed to open air space, the surroundings consists of two elements, it is the ground and hypothetical sky surface. The sky temperature measured by long-wave IR camera is of apparent character because it expresses the thermal radiation of the sky within the spectral operational range of this camera i.e. 7.5÷13 μm. The abovementioned spectral range is coincident with so called atmospheric window within which the thermal radiation of the sky is relatively low. The emissivity of atmosphere within this window is low in the central part and high near the limits of the aforementioned range. In relation with the detector characteristic of the IR camera it causes underestimation of the measured sky temperature. This work deals with the analysis of influence of the IR camera detector characteristic on the results of determination of sky temperature and its thermal radiation intensity.
Źródło:
Measurement Automation Monitoring; 2015, 61, 6; 173-175
2450-2855
Pojawia się w:
Measurement Automation Monitoring
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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