Now playing · 08 Ultrasound
Doppler shift
Δf = 1623 Hz
Δ
f
=
2
v
f
0
cos
θ
c
\Delta f = \frac{2 v f_0 \cos\theta}{c}
Δ
f
=
c
2
v
f
0
cos
θ
Frequency shift from flow speed and probe angle.
Laser