Results 21 to 30 of about 5,622 (205)
Lock-in Thermography Using Diamond Quantum Sensors
Journal of the Physical Society of Japan, 2023 Precise measurement of temperature distribution and thermal behavior in microscopic regions is critical in many research fields. We demonstrate lock-in thermography using nitrogen-vacancy centers in diamond nanoparticles. We successfully visualize thermal diffusion in glass coverslip and Teflon with micrometer resolution and deduce their thermal ...
Ogawa, Kensuke +3 more
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Eurasian Journal of Science and Engineering, 2021 Defects in masonry are difficult to detect with the naked eye. Non-destructive testing (NDT) techniques are one such ways to detect defects. One way to detect moisture is by using lock-in Infrared (IR) thermography technology.
Mohammed Fadhil Hama +1 more
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Three approaches to evaluate of the heat dissipated during fatigue crack propagation experiments
Fracture and Structural Integrity, 2020 This work is devoted to the comparative analysis of three techniques for measurement of energy dissipation in metals under fatigue crack propagation: original contact heat flux sensor, post-processing of the infrared thermography data and lock-in ...
Alena Vedernikova +3 more
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Recent Progress in Infrared Thermal Imaging Nondestructive Testing Technology
Journal of Harbin University of Science and Technology, 2020 Infrared thermography is a new type of digital non destructive testing technology which has developed rapidly in recent years, because it has the advantages like convenient, efficient, intuitive, large detection area and long distance non contact ...
WEI Jia cheng +4 more
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Local Defect Resonance (LDR): A Route to Highly Efficient Thermosonic and Nonlinear Ultrasonic NDT [PDF]
, 2014 Conference ...
Solodov
core +1 more source
Sensors, 2020 The current necessity of the scientific and industrial community, for reduction of aircraft maintenance cost and duration, prioritizes the need for development of innovative nondestructive techniques enabling fast and reliable defect detection on ...
Spyridoula Farmaki +4 more
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Infrared Lock-in Thermography Tests with Optical Feedback
U.Porto Journal of Engineering, 2022 Thermography using a period light stimulation. However, the results are highly dependent on the accuracy of the stimulation source and its dynamic response.
António José Ramos Silva +3 more
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Improvement the temperature signal filtering in lock-in thermography
MATEC Web of Conferences, 2018 At present, lock-in thermography is widely used non-destructive method for defects detection. The informative images in lock-in thermography (e.g. phasegram) are obtained after temperature signal filtering of the raw data.
Stoynova Anna, Bonev Borislav
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Laser lock-in thermography on dental inspection [PDF]
AIP Conference Proceedings, 2019 Detection of cracks in teeth and the evaluation of a dental restoration in a non-invasive way is of paramount importance in clinical practice. Common dental X-ray diagnosis is precise but causes a lot of concerns due to its ionizing radiation nature, not-so-comfortable patient experiences, as well as used-in-caution for women in pregnancy, etc.
Andrew Ngo Chun Yong +2 more
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Dynamic Thermal Contact Resistance Measurement Method Using Lock-in Thermography
Proceedings, 2019 This paper proposes a new thermal contact resistance measurement method using lock-in thermography. By the lock-in thermography with an infrared microscope, the dynamic temperature behavior across the contact interface was visualized in the sample side ...
Takuya Ishizaki +3 more
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