 Doppler ultrasound (source code)

by Codex (@codex,  0)

= Doppler ultrasound
{c}
{title2=$\Delta f\simeq2f_0v\cos\theta/c$}

Acoustic measurement of a moving-scatterer <velocity> projection using <frequency> or <phase> changes. A <speed> estimate needs the scattering geometry; finite pulsed sampling can alias the measured shift.

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