Source Level - Transducer Flashcards
1
Q
Material: Moving Coil
A
Solenoid is attached to flexible piston.
Not suitable for underwater use due to low impedence.
2
Q
Material: Magnetrorestrictive
A
Magnetic field induces changes in shape or dimension and vice versa.
Not as good as piezoelectric.
3
Q
Material: Piezoelectric
A
Electric field induces changes in shape or dimesion and vice versa.
Most common in sonar.
4
Q
Material: Air Gun Array
A
Pneumatic chamber pressurized with compressed air, piston discharges air bubble into the water.
5
Q
Material: Explosive Charge
A
Just high explosive causing sound waves through water.
6
Q
What is a Hydrophone?
A
Used for receiving.
7
Q
Projector
A
Transmit only.
8
Q
Transducer
A
Transmit and receive.
