Echo sounders - Transducers (Magnetostrictive, Electrostrictive, and Piezoelectric)

This video uses animations to explain the different types of transducers used for echo sounding devices used on ships. Echo sounders are used on ships to measure the under-keel clearance and the depth of water for safe navigation to take place. Links to the previous videos on the topic of echo sounder is provided below: Working principle of echo sounder: https://www.youtube.com/watch?v=HoCRBdHt8O4&t=21s Displays of echo sounder: https://youtu.be/Dg78mVUECnY Operational controls of the echo sounder: https://youtu.be/zQ13MPdTeGM