1 Scale / ruler
2 Sound wave parameters setup
3 Sound wave generator
4 Speaker

1 Input
2 Pulse shape setup
3 Attenuation setup
4 Frequency coarse setup
5 Frequency fine setup
6 Display
7 Amplitude setup
8 Output

Sound wave parameters setup

1 Speaker
2 Rayleigh plate
3 Angular scale for the Rayleigh plate setup

1 Rayleigh plate angle setup
2 Angular scale

1 Rayleigh plate
2 Rayleigh plate holder

1 Laser beam spot
2 Scale / ruler