SaM - Measurements & Measurement Types for Ultrasonic Beams

$3$ Example of measurements:

1. Non-Contact Measurement.
2. Echography and Doppler Effect.
3. Non Destructive Testing.

$2$ Measurement Types:

1. Transmission.
   (2 devices that alternates between sending an reciving).
2. Echo mode. (the most important one)
   (1 device for both sensing and reciving).