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Journal of Theoretical and Applied Mechanics
2012 Vol. 50 nr 2 377-398
PL Wzrost temperatury w materiale związany z plastycznym odkształcaniem może być rejestrowany różnymi metodami, w tym m.in. techniką termografii podczerwieni (IRT). Prezentowana praca poświęcona jest badaniom wzrostu temperatury przy różnym tempie odkształceń i temperatury początkowej próbek wykonanych[...]
EN The temperature increase associated with plastic deformation of a material under loading may be measured using several techniques such as infrared thermography (IRT). The present work investigates the temperature increase at different high strain rates and initial test temperatures, using an alumini[...]
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Opto - Electronics Review
EN The article presents the results of research developing methods for determining the coefficient of thermal diffusivity of thermal insulating material. This method applies a periodic heating as an excitation and an infrared camera is used to measure the temperature distribution on the surface of test[...]
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Problemy Techniki Uzbrojenia
PL W artykule przedstawiono statystyczne kryteria zwiększające efektywność wykrywania defektów w badaniach nieniszczących materiałów kompozytowych z zastosowaniem metod termografii w podczerwieni, tworzenia map defektów i rozpoznawania obrazów. Przeanalizowano również wpływ szumów i zakłóceń na wyniki [...]
EN Statistical criteria improving effectiveness of detection of defects in nondestructive testing of composite materials by IR thermography methods and creating defect maps and recognition of pictures are presented in the paper. The influence of noises and disturbances on results of these testing was a[...]
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Problemy Techniki Uzbrojenia
PL W artykule, na podstawie prac naukowo-badawczych autora oraz danych literaturowych, przedstawiono stosowane metody i techniki termografii w podczerwieni w badaniach nieniszczących materiałów kompozytowych. Podano ich możliwości, zalety oraz ograniczenia wynikające zarówno z fizyki wykorzystywanych z[...]
EN Nondestructive testing methods and techniques of composite materials by IR thermography on basis of scientific and research works of author as well as literature data are presented in the paper. Their possibilities and advatages as well as limitations resulting both with used phisics phenomena and s[...]
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Measurement Automation Monitoring
2017 Vol. 63, No. 3 115--118
EN A long time operation of pipelines can lead to the reduction of their wall thickness. This process is accelerated by high temperature and variable pressure of the transported medium and can finally cause mechanical failures along with leaks and danger of explosion. The aim of this paper is to presen[...]
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Machine Graphics and Vision
EN When using infrared thrmography to perform convective heat transfer measurements, it is necessery to restore the thermal images because of thier degradation which is due to the heat flux sensor, the environment and the temperature sensor. This problem is addressed herein. Besides, infrared thermogra[...]
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Problemy Techniki Uzbrojenia
EN Selected results of research works for using infrared thermography for buried mines detection are presented in the paper. Developed numerical model describing heat and water transfer phenomenon in the soil has been verified by laboratory experiment.
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Machine Dynamics Problems
EN This paper is a contribution into a wider discussion about nondestructive testing in material engineering. The aim of described research is the enhancement of experimental possibilities for subsurface defects detection in materials, products and structures by using an infrared scanning detector came[...]
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Journal of Theoretical and Applied Mechanics
2002 Vol. 40 nr 2 317-337
PL Przedstawiono oryginalną technikę pomiaru przyrostu temperatury w strefie ścinania w trakcie quasistatycznego obciążenia metalowych blach. Stanowisko badawcze do przeprowadzenia takich badań zostało skonstruowane w IPPT PAN w Warszawie. Badano blachy stalowe typu ES (Enhanced Formability), używane w[...]
EN An original technique to measure the temperature increase in the shear zone during quasi-static loading of a sheet metal is reported. The set-up used to perform such a test has been developed in IPPT-Warsaw (Gadaj et al., 1996). The tested material is a ES sheet steel (Enhanced Formability) used in [...]
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Acta of Bioengineering and Biomechanics
EN This work aims to study the usability of infrared thermography in swimming for the purpose of quantifying the influence of the swimming style on the cartographies of cutaneous temperatures of a swimmer. Only one subject took part in the experimental protocol, who was to accomplish a 4 × 100 m 4 medl[...]
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Opto - Electronics Review
EN Aerial thermography is performed from a low-cost aerial vehicle, copter type, for the acquisition of data of medium-size areas, such as neighbourhoods, districts or small villages. Thermographic images are registered in a mosaic subsequently used for the generation of a thermographic digital terrain[...]
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Opto - Electronics Review
EN This paper presents and assesses an inverse heat conduction problem (IHCP) solution procedure which was developed to determine the local convective heat transfer coefficient along the circumferential coordinate at the inner wall of a coiled pipe by applying the filtering technique approach to infrar[...]
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Transactions of the Institute of Fluid-Flow Machinery
2015 nr 128 97--118
EN This paper presents results of flow boiling heat transfer in two parallel asymmetrically heated vertical minichannels. The heating element for Fluorinert FC-72 flowing in the minichannels was a thin foil with an enhanced surface on the side in contact with the fluid. The channels were observed from [...]
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Archives of Metallurgy and Materials
2012 Vol. 57, iss. 4 1111-1116
PL W niniejszej pracy początek lokalizacji odkształcenia plastycznego wyznaczono przy użyciu dwóch niezależnych metod bazujących na analizie pola odkształceń i pola temperatury. Pole odkształceń wyznaczono na podstawie przemieszczeń markerów zarejestrowanych przy użyciu kamery w świetle widzialnym. Jed[...]
EN In the present paper the onset of plastic strain localization was determined using two independent methods based on strain and temperature field analysis. The strain field was obtained from markers displacement recorded using visible light camera. In the same time, on the other side of the specimen,[...]
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Journal of KONES
2014 Vol. 21, No. 2 243--250
EN Recently the composite materials have been often applied in designs of light ballistic protections as the progress in domain of polymers chemistry has made possible the production of materials providing efficient protection against small arms bullets and fragments. Usually the composites apply texti[...]
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Pomiary Automatyka Kontrola
PL W pracy [1] przedstawiono ogólne podejście do symulacyjnej analizy niepewności algorytmu przetwarzania toru pomiarowego kamery termowizyjnej, na przykładzie kamery ThermaCAM PM 595. Przeprowadzono tu analizę wpływu wartości współczynnika korelacji pomiędzy zmiennymi wejściowymi modelu pomiaru dla ws[...]
EN The simulation analysis of uncertainty of the processing algorithm of measurement path of infrared cam-era ThermaCAM PM 595 was described in the paper [1]. The analysis deals with the case, when the object emissivity is high enough (close to one). In this paper there was presented results of simulat[...]
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Pomiary Automatyka Kontrola
2009 R. 55, nr 11 868-873
PL W artykule przedstawiono zarys teorii błędów i niepewności występujących podczas bezstykowego pomiaru temperatury a pomocą kamery termowizyjnej. Wskazano na różnicę pomiędzy pojęciami błędu i niepewności. Dodatkowo przeprowadzono dyskusję źródeł powstawania błędów i niepewności w tego typu pomiarach[...]
EN In the paper there is presented an outline of the theory of errors and uncertainties for non-contact temperature measurements with an infrared camera. The paper begins with an introduction. In this section, the model of the infrared camera measurement path is described and a difference between the e[...]
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Pomiary Automatyka Kontrola
2009 R. 55, nr 11 878-881
PL Omówiono główne czynniki wpływające na wybór zakresu spektralnego kamery termowizyjnej do badań w mikroelektronice: parametry katalogowe kamer, przebiegi krzywych kalibracyjnych oraz własności promienne mikroukładów. Dla oceny kamer opracowano procedurę i obliczono niepewność standardową pomiaru emi[...]
EN In microelectronics the accuracy of infrared thermography very often depends strongly on the IR camera spectral range. Cameras with different spectral ranges are usually compared using the uncertainty of temperature measurements. There are several works devoted to calculating this uncertainty. Unfor[...]
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Computer Assisted Mechanics and Engineering Sciences
EN Thermovision is more and more often used in machinery and apparatus diagnostics. With the aid of a thermographic camera non-contact simultaneous temperature measurements can be carried out at many points of an object and they can be recorded in a form of a thermographic image. The thermographic imag[...]
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Computer Assisted Mechanics and Engineering Sciences
EN A non-destructive method of damage detection based on heat transfer experiments and 2-D Discrete Wavelet Transform (DWT) is discussed. In this paper real experiments with the use of thermography measurement techniques are substituted by numerically simulated experiments. The plates were modeled as 2[...]
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