CavLab at the University of Glasgow is using CAVILUX Smart to study focused ultrasound via high-speed shadowgraphy imaging with up to 10 Million frames per second. The video below shows the development of a 1.1MHz ultrasound field created by a needle hydrophone. The video is captured at 5 Million fps.
Shockwaves are very fast phenomena that can be studied with ultra-high-speed imaging. However, the small size and high speed of the object can create motion blur in the images. Cavitar’s laser illumination provides very short pulses that minimize the effect of motion blur while providing sufficient lighting for images taken at ultra-high-speed.
Kristoffer Johansen, Jae Hee Song, and Paul Prentice, CavLab, Cluster of Ultrasound Science, Technology and Engineering Research, University of Glasgow, UK, Characterising Focused Ultrasound via High Speed Shadowgraphic Imaging at 10 Million Frames Per Second, published at 2016 IEEE International Ultrasonics Symposium Proceedings
Cavelab katika Chuo Kikuu cha Glasgow inatumia CAVELUX Smart kusoma ultrasound iliyoelekezwa kupitia picha ya shadowgraphy ya kasi ya juu na hadi 10 milioni ya fremu kwa sekunde. Video ya chini inaonyesha maendeleo ya 1.1MHz ultrasound uwanja kuundwa na sindano hydrophone. Video hiyo ilichukuliwa kwa kasi ya fps milioni 5. Mawimbi ya mshtuko ni matukio ya haraka sana ambayo yanaweza kuchunguzwa kwa kutumia picha za mwendo wa kasi sana. Hata hivyo, ukubwa mdogo na mwendo wa juu wa kitu hicho unaweza kutokeza mwangaza usioonekana kwenye picha. Cavitar's laser taa hutoa pulses fupi sana kwamba kupunguza athari ya mwendo blur wakati kutoa taa ya kutosha kwa ajili ya picha kuchukuliwa katika ultra-high- kasi. Kristoffer Johansen, Jae Hee Song, na Paul Prentice, Cavelab, Cluster ya Ultrasound Sayansi, Teknolojia na Uhandisi Utafiti, Chuo Kikuu cha Glasgow, Uingereza, Characterizing Focused Ultrasound kupitia High Speed Shadowgraphic Imaging at 10 Million Frames Per Second, kuchapishwa katika 2016 IEEE International Ultrasound Symposium Proceedings.