AOS Technologies AG had the opportunity to visit the MIT in Boston, exactly “The Edgerton Center” (https://edgerton.mit.edu/).
Beside the fact that it is the MIT, the Edgerton Center is the historical place all the high-speed photography and video has its beginning. The Center is named after Harold “Doc” Edgerton. During this visit, we met Jim Bales (Associate Director and Instructor Edgerton Center). Together with him we had the opportunity to shoot a color schlieren sequence with our new C-VIT Camera. This special technique allows to see the density change in air caused by thermal changes or the influence of different gases like helium or Sulfur hexafluoride.
These regions of changing air density are outlined with intense colors (Red on the left, Yellow on the top, Green on the right, and Blue on the bottom).
In this video, we strike a kitchen match on a matchbox (the box is held over the match) and light a candle. As the match is struck, it starts to burn, heating the air which causes the colors you see. Shortly after that, the yellow flame becomes visible.
As the candle lights, you see the plume of hot air rising, with its sides highlighted in red and green (yellow and blue mark the top and bottom of a parcel of heated air).
Credit: Dr. Jim Bales, MIT Edgerton Center; Mr. Dan Aronovitz, Tech Imaging.
Image captured with an AOS C-Vit high-speed video camera
http://www.aostechnologies.com/high-speed-imaging/high-speed-cameras/c-vit/
