Visual Effects of Surface Emissivity in Thermal Imaging

Urzędowski, Arkadiusz; Wójcicka-Migasiuk, Dorota; Buraczyńska, Barbara

doi:10.12913/22998624/118103

Cited by 3 publications

(2 citation statements)

References 11 publications

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“…As part of the first stage, using PSC PI 1M camera and the FLIR thermal imaging camera a series of photos of the liquid metal was taken during the melting process for the assumed operating parameters of the furnace [23]. The use of the WebPlotDigitizer 4.1 program allowed to place points on the photos describing the resulting geometry.…”

Section: Determination Of the Surface Of A Liquid Alloymentioning

confidence: 99%

Influence of the Power of Various Types of Induction Furnaces on the Shape of the Metal Bath Surface

Smalcerz¹,

Węcki²,

Blacha³

2021

Adv. Sci. Technol. Res. J.

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The work shows the results of examinations conducted to ascertain the influence of the working power of a vacuum induction crucible furnace (ICF) and a furnace with a cold crucible (CCF), on the surface area of liquid Al-Zn alloy molten within these devices. It was determined that the increase of the value of this parameter causes the increase of the liquid alloys surface area. In the case of smelting alloy inside a crucible furnace the increase of power from 8 to 22 kW causes the increase of liquid alloy surface from 88 to 155 cm 2 . For a furnace with a cold crucible, the power increase from 70 to 130 kW causes the increase of the alloy surface from 280 to 330.3 cm 2 . For all power values a larger increase in surface area was observed in crucible furnaces (around two times). In cases of cold crucible furnaces, this increase was around 20%. Additionally, based on the examination results the way in which the surface area of liquid alloy can intensify the undesirable process of zinc fuming away, was discussed. It has been demonstrated that the process of zinc elimination from the examined alloy is more intensive while using a cold crucible induction furnace.

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Section: Determination Of the Surface Of A Liquid Alloymentioning

confidence: 99%

Influence of the Power of Various Types of Induction Furnaces on the Shape of the Metal Bath Surface

Smalcerz¹,

Węcki²,

Blacha³

2021

Adv. Sci. Technol. Res. J.

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“…The publications [19,20] describe the method of using a thermal imaging camera to measure the temperature of the machining zone. In both publications, the authors noted the advantages and disadvantages of this method of temperature measurement.…”

Section: Introductionmentioning

confidence: 99%

Influence of Grain Size and Feed Rate on Selected Aspects of Corundum Ceramic Grinding Using Spherical Diamond Heads

Szajna¹,

Bazan²

2021

Adv. Sci. Technol. Res. J.

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Temperature Accuracy Analysis by Land Cover According to the Angle of the Thermal Infrared Imaging Camera for Unmanned Aerial Vehicles

Lee

2022

IJGI

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Land surface temperature (LST) is one of the crucial factors that is important in various fields, including the study of climate change and the urban heat island (UHI) phenomenon. The existing LST was acquired using satellite imagery, but with the development of unmanned aerial vehicles (UAV) and thermal infrared (TIR) cameras, it has become possible to acquire LST with a spatial resolution of cm. The accuracy evaluation of the existing TIR camera for UAV was conducted by shooting vertically. However, in the case of a TIR camera, the temperature value may change because the emissivity varies depending on the viewing angle. Therefore, it is necessary to evaluate the accuracy of the TIR camera according to each angle. In this study, images were simultaneously acquired at 2–min intervals for each of the three research sites by TIR camera angles (70°, 80°, 90°). Then, the temperature difference by land cover was evaluated with respect to the LST obtained by laser thermometer and the LST obtained using UAV and TIR. As a result, the image taken at 80° showed the smallest difference compared with the value obtained with a laser thermometer, and the 70° image showed a large difference of 1–6 °C. In addition, in the case of the impervious surface, there was a large temperature difference by angle, and in the case of the water-permeable surface, there was no temperature difference by angle. Through this, 80° is best when acquiring TIR data, and if it is impossible to take images at 80°, it is considered good to acquire TIR images between 80° and 90°. To obtain more accurate LST, correction studies considering the external environment, camera attitude, and shooting height are needed in future studies.

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Visual Effects of Surface Emissivity in Thermal Imaging

Cited by 3 publications

References 11 publications

Influence of the Power of Various Types of Induction Furnaces on the Shape of the Metal Bath Surface

Influence of the Power of Various Types of Induction Furnaces on the Shape of the Metal Bath Surface

Influence of Grain Size and Feed Rate on Selected Aspects of Corundum Ceramic Grinding Using Spherical Diamond Heads

Temperature Accuracy Analysis by Land Cover According to the Angle of the Thermal Infrared Imaging Camera for Unmanned Aerial Vehicles

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