Welding and industry
Brazilian welding research with high-speed imaging and laser illumination
LABSOLDA, at UFSC, uses high-speed filming and CAVILUX HF illumination in the study of TIG and MIG/MAG welding variants.
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Articles
Materials and measurement
Stereophotogrammetry with synchronized LEDs
A setup with two high-speed cameras and synchronized LEDs for 3D digital image correlation, with very short effective exposures.
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Sensors and sensitivity
From light to the camera's digital signal
How the flow of photons reaching the sensor relates to the signal in electrons and to the digital values, and what this says about lighting and image formation.
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Lighting and synchronization
How pulsed lighting helps reduce rolling shutter artifacts
Why the sequential readout of a sensor can distort moving objects, and how pulsed, synchronized LEDs reduce these artifacts under specific acquisition conditions.
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Materials and measurement
2D digital image correlation with NCORR and MATLAB
An introduction to using high-speed sequences to calculate displacements and strains without contact, with NCORR, a tool that runs in MATLAB.
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