Zobrazeno 1 - 10
of 33
pro vyhledávání: '"James R. Lhota"'
Publikováno v:
Nondestructive Testing and Evaluation. 22:113-126
Flash thermography data is typically interpreted as either a sequence of images, or a collection of pixel time histories acquired after flash heating of the surface. Modelling of the process typically requires a detailed understanding of the thermoph
Publikováno v:
AIP Conference Proceedings.
Nuclear power plants are required to operate at a high level of safety. Recent industry and license renewal commitments aim to further increase safety by requiring the inspection of components that have not traditionally undergone detailed inspected
Publikováno v:
Insight - Non-Destructive Testing and Condition Monitoring. 48:298-301
The Thermographic Signal Reconstruction (TSR) method has become a widely accepted approach to processing and interpreting active thermography data, since its introduction six years ago. Initially, the technique was used to create compact, noise-free
Publikováno v:
Insight - Non-Destructive Testing and Condition Monitoring. 46:210-213
Recent advances in thermographic signal processing, dedicated excitation hardware and improvements in the underlying camera and computer technology have made pulsed thermography a viable tool for non-destructive testing in a wide variety of applicati
Publikováno v:
Thermosense XXXI.
Although active thermography has traditionally been regarded as a qualitative NDT method, its potential for quantitative measurement of thermophysical properties including wall thickness, flaw size and depth, thermal diffusivity or effusivity has bee
Publikováno v:
SPIE Proceedings.
Since its introduction 5 years ago, the Thermographic Signal Reconstruction (TSR) method has become a widely accepted approach to processing and interpreting active thermography data. Although the technique generates a noise free replica of an experi
Publikováno v:
Thermosense XXVII.
Flash thermography is widely used to inspect Thermal Barrier Coatings (TBC) during manufacturing and maintenance for defects such as delamination or contamination. However, attempts to use thermography to quantify TBC thickness have been less success
Autor:
Steven M. Shepard, James R. Lhota
Publikováno v:
Thermosense XXVII.
In conventional flash thermography a brief pulse of light with a full width half maximum duration of 2-4 ms is applied to the surface of a solid sample and the surface temperature response is recorded with an infrared camera. In practice, the flash d
Autor:
Steven M. Shepard, James R. Lhota
Publikováno v:
AIP Conference Proceedings.
In conventional flash thermography a pulse of light with a full width half maximum duration of 2–4 ms is applied to the surface of a solid sample and the surface temperature response is recorded with an infrared camera. Typically only the flash amp
Publikováno v:
SPIE Proceedings.
In various studies, thermographic methods have been used to measure thermophysical properties of materials. The most widely used such method is the Parker flash technique for diffusivity measurement, in which the transit time of a heat pulse applied