Echo sounder transducers
Determining the location the transducer
answer to the question “where to install the transducer”
cannot be given.
The physical location of the transducer depends
on the vessel's design and construction, how the hull is shaped, and
how the water runs along the hull. There are however a number of important
guidelines, and some of these are even conflicting.
here must be considered as general advice. Each transducer installation
must be handled separately depending on the characteristics of the
transducer and the design of hull.
Summary and general recommendations
Some of the installation
guidelines provided may be conflicting. Each vessel must be treated
individually in order to find the best compromise.
the most important factor is to avoid air bubbles in front of the
transducer face. For this reason, the recommended transducer location
is normally in the fore part of the hull, well ahead of the noise
created by the bow wave. The maximum distance from the bow is normally
equal to one third of the total water line length of the hull.
- Inclination angle
- Hull length at water line
- Maximum 1/3 of the hull length at water line (C)
If the vessel hull has a bulbous bow, this may well be a good
transducer location, but also in this case the flow pattern of the
aerated water must be taken into consideration. Often the foremost
part of the bulb is preferable.
Typical location on a bulbous
- Transducer location
This applies to the vessel in normal trim and speed. Under
no circumstances should the transducer be tilted backwards when the
vessel is moving at an appreciable speed. Mounting screws must never
be extruding from the transducer, and the space around the screws
must be filled with a compound or a locking ring.