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Doppler method

См. также в других словарях:

  • Doppler cooling — is a mechanism that can be used to trap and cool atoms. The term is sometimes used synonymously with laser cooling, though laser cooling includes other techniques. Contents 1 History 2 Brief Explanation 3 Detailed Explanation …   Wikipedia

  • Doppler spectroscopy — Diagram showing how a smaller object (such as an extrasolar planet) orbiting a larger object (such as a star) could produce changes in position and velocity of the latter as they orbit their common center of mass (red cross). Doppler spectroscopy …   Wikipedia

  • Doppler effect — Change of wavelength caused by motion of the source. An animation illustrating how the Doppler effect causes a car engine or siren to soun …   Wikipedia

  • Transcranial doppler — (TCD) is a test that measures the velocity of blood flow through the brain s blood vessels. Used to help in the diagnosis of emboli, stenosis, vasospasm from a subarachnoid hemorrhage (bleeding from a ruptured aneurysm), and other problems, this… …   Wikipedia

  • Continuous Scan Laser Doppler Vibrometry (CSLDV) — is a method of using a Laser Doppler Vibrometer (LDV) in which the laser beam is swept across the surface of a test subject to capture the motion of a surface at many points simultaneously. This is different from scanning laser vibrometry (SLDV)… …   Wikipedia

  • Ultrasound, Doppler — A form of ultrasound that can detect and measure blood flow. Doppler ultrasound depends on the Doppler effect, a change in the frequency of a wave resulting here from the motion of a reflector, the red blood cell. There are several kinds of… …   Medical dictionary

  • Spectroscopie Doppler — Méthode des vitesses radiales Diagramme montrant l influence d un petit objet (comme une planète) orbitant autour d un autre, beaucoup plus massif (comme une étoile). Le petit corps produit en effet des changement de vélocité sur le plus grand,… …   Wikipédia en Français

  • Planar Doppler velocimetry — (PDV), also referred to as Doppler Global Velocimetry (DGV), determines flow velocity across a plane by measuring the Doppler shift in frequency of light scattered by particles contained in the flow. The Doppler shift, Δfd, is related to the… …   Wikipedia

  • Zeeman-Doppler imaging — In astrophysics, Zeeman Doppler imaging is a tomographic technique dedicated to the cartography of stellar magnetic fields.This method makes use of the ability of magnetic fields to polarize the light emitted (or absorbed) in spectral lines… …   Wikipedia

  • Moving cluster method — In astrometry, the moving cluster method and the closely related convergent point method are means, primarily of historical interest, for determining the distance to star clusters. They were used on several nearby clusters in the first half of… …   Wikipedia

  • color flow Doppler imaging — a method for visualizing direction and velocity of movement, as of blood flow within the cardiac chambers or blood vessels: color coded flow direction and velocity information gathered by Doppler ultrasonography at multiple sites across the… …   Medical dictionary

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