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doppler effect/shift/principle/phenomenon
The apparent change in the frequency of sound or electromagnetic radiation due to relative motion between the source & the observer.
Uses:
1) Of diagnostic value in cardiology & obstetrics
2) used in radar:
a) to distinguish between stationary & moving targets
b) to provide information concerning their velocity, by measuring the frequency shift between the emitted & the reflected radiation
[from Johann Christian Doppler, Austrian mathematicican & physicist]
Related
doppler sonography/ultrasonography (DUS)
General
ultrasound (US, UTZ)
References
- Stedman's Medical Dictionary 27th ed, Williams &
Wilkins, Baltimore, 1999.
- Clinically Oriented Anatomy, 4th edition, KL Moore &
AF Dalley (eds), Lippincott Williams & Wilkins, Philadelphia,
PA 1999.
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