Photoacoustic Doppler Effect
(Sprache: Englisch)
High Quality Content by WIKIPEDIA articles! The photoacoustic Doppler effect, as its name implies, is one specific kind of Doppler effect, which occurs when an intensity modulated light wave induces a photoacoustic wave on moving particles with a specific...
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High Quality Content by WIKIPEDIA articles! The photoacoustic Doppler effect, as its name implies, is one specific kind of Doppler effect, which occurs when an intensity modulated light wave induces a photoacoustic wave on moving particles with a specific frequency. The observed frequency shift is a good indicator of the velocity of the illuminated moving particles. A potential biomedical application is measuring blood flow. Specifically, when an intensity modulated light wave is exerted on a localized medium, the resulting heat can induce an alternating and localized pressure change. This periodic pressure change generates an acoustic wave with a specific frequency. Among various factors that determine this frequency, the velocity of the heated area and thus the moving particles in this area can induce a frequency shift proportional to the relative motion. Thus, from the perspective of an observer, the observed frequency shift can be used to derive the velocity of illuminated moving particles.
Bibliographische Angaben
- 2010, 108 Seiten, Maße: 15 x 22 cm, Kartoniert (TB), Englisch
- Herausgegeben von Surhone, Lambert M.; Timpledon, Miriam T.; Marseken, Susan F.
- Verlag: Betascript Publishing
- ISBN-10: 6131070202
- ISBN-13: 9786131070204
Sprache:
Englisch
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