Doppler shift
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Doppler shift or dopplerDoppler effect is named after austrian physicist Christian doppler. In ultrasonography, it is defined as the change in frequency of sound wave due to a reflector moving towards or away from an object, which in the probecase of ultrasound is the transducer.
Doppler equation
F = 2fo ( v(v/c)cos(Q)
where:
- F is doppler frequency shift
- fo is transmitted frequency from ultrasound probe
- v is the velocity of moving reflector
- c is the velocity of sound in the medium
- Q is the angle between ultrasound beam and axis of flow
Etmyology
Named after Austrian physicist, Christian Doppler.
-<p><strong>Doppler shift </strong>or <strong>doppler effect </strong>is named after austrian physicist Christian doppler. In ultrasonography, it is defined as the change in frequency of sound wave due to a reflector moving towards or away from the probe.</p><h5>Doppler equation </h5><p>F = 2f<sub>o</sub> ( v/c )cos(Q)</p><p>where </p><ul>-<li>F is doppler frequency shift</li>-<li>f<sub>o </sub>is transmitted frequency from ultrasound probe</li>-<li>v is the velocity of moving reflector</li>-<li>c is the velocity of sound in the medium</li>-<li>Q is the angle between ultrasound beam and axis of flow.</li>-</ul>- +<p><strong>Doppler shift </strong>or <strong>Doppler effect </strong>is defined as the change in frequency of sound wave due to a reflector moving towards or away from an object, which in the case of ultrasound is the <a title="transducer" href="/articles/transducer">transducer</a>.</p><h4>Doppler equation </h4><p>F = 2f<sub>o</sub>(v/c)cos(Q)</p><p>where:</p><ul>
- +<li>F is doppler frequency shift</li>
- +<li>f<sub>o </sub>is transmitted frequency from ultrasound probe</li>
- +<li>v is the velocity of moving reflector</li>
- +<li>c is the velocity of sound in the medium</li>
- +<li>Q is the angle between ultrasound beam and axis of flow</li>
- +</ul><h4>Etmyology</h4><p>Named after Austrian physicist, <strong>Christian Doppler</strong>.</p>
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