K
Krishnendu Chatterjee
Researcher at Indian Institute of Technology Delhi
Publications - 12
Citations - 266
Krishnendu Chatterjee is an academic researcher from Indian Institute of Technology Delhi. The author has contributed to research in topics: Thermography & Chirp. The author has an hindex of 5, co-authored 12 publications receiving 224 citations.
Papers
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A comparison of the pulsed, lock-in and frequency modulated thermography nondestructive evaluation techniques
TL;DR: Pulsed, lock-in and frequency modulated thermography are three alternative nondestructive evaluation techniques. as discussed by the authors compared the defect imaging performance of these techniques using: matched excitation energy; the same carbon fiber composite test piece and infrared camera system.
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Image Enhancement in Transient Lock-In Thermography Through Time Series Reconstruction and Spatial Slope Correction
TL;DR: An image reconstruction algorithm that enables LI thermography tests in the transient regime and removes temperature gradients due to nonuniform heating and surface emissivity variation is proposed.
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LED optical excitation for the long pulse and lock-in thermographic techniques
TL;DR: In this article, high power light emitting diode (LED) arrays have been investigated as excitation sources for long pulse and lock-in thermography, and they were found to emit some IR radiation, although far less than conventional incandescent light sources.
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Prediction of blind frequency in lock-in thermography using electro-thermal model based numerical simulation
TL;DR: In this article, a study of blind frequency using electro-thermal model based numerical simulation on a piece of thermally anisotropic carbon fiber composite is presented, where the effect of paint layer, which is often applied to the sample surface for better thermal imaging is incorporated in the simulation.
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A novel pulse compression algorithm for frequency modulated active thermography using band-pass filter
TL;DR: In this paper, the authors proposed a novel pulse compression algorithm, in the context of frequency modulated thermal wave imaging, derived from a predefined reference pixel in a recorded video, which contains direct measurement of the excitation signal alongside the thermal image of a test piece.