Marine Dictionary & Glossary of Boating Terms

Transducer

Similar Terms: Transducers,T/ducer,ducer,T/D

An electronic sensing device mounted in a boat's bilge or at the bottom of the transom to provide data for a depth sounder. The transducer converts the electrical energy from the transmitter into sound energy, that becomes the Sonar Beam projected into the water.

Internally the transducer consists of one or more piezoelectric disks that expand by very minute amounts to create the sound wave. This mechanism, operates in reverse to convert the returning sonar wave into an electrical signal that is interpreted by the receiver.