Echo Sounder

Question 1

How does the Echo Sounder work?

Answer 1

 A signal is generated and sent to the transducer.
 The transducer sends a pulse out.
 The pulse touches the seafloor and reflects.
 Transducer received the reflection.
 Sends signal to the receiver.
 The receiver shows the display of the depth.

Question 2

How should the Echo Sounder be maintained?

Answer 2

 Transducer must be checked when the vessel is in dry dock.
 Calibration must be conducted periodically.

Question 3

What are the errors associated with an Echo Sounder?

Answer 3

 System errors (signal/transducer/ calibration).
 Operator errors (incorrect scale/ gain).
 Temperature, pressure, salinity errors.