2D-temperature imaging of single droplets and sprays using thermographic phosphors

Autor:	Alaa Omrane, Gustaf Särner, Marcus Aldén
Rok vydání:	2004
Předmět:	Framing (visual arts) Materials science Physics and Astronomy (miscellaneous) business.industry General Engineering General Physics and Astronomy Phosphor Laser Temperature measurement Fluorescence spectroscopy law.invention Optics law Thermography Ultrasonic sensor business Phosphorescence
Zdroj:	Applied Physics B. 79:431-434
ISSN:	1432-0649 0946-2171
Popis:	A novel 2D-technique for temperature visualization of single droplets and sprays is presented. Laser induced emission from thermographic phosphor seeded to the investigated liquid was detected by a fast framing camera. The subsequent phosphorescence images measured by seven consecutively gated CCD detectors allowed pixel-to-pixel lifetime evaluation of the phosphorescence emission. The temperature at each pixel position was evaluated using a calibration procedure of temperature against lifetime. These measurements were applied first to a free falling water based droplet, then to a suspended droplet in an ultrasonic levitator. Finally, the technique was applied to spray.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::25de669b3c6b81953c4f2b1ca6f3c9ec https://doi.org/10.1007/s00340-004-1584-5 Zobrazit plný text záznamu Plný text ve formátu PDF