54
404776/A
Related topics
Streamlined housing mounted externally on a steel hull, page 41
Streamlined housing mounted externally on a wooden or polyester hull, page 44
Mounting the transducer on a steel hull, page 26
Mounting the transducer on a wooden or polyester hull, page 28
Mounting the transducer on a blister or drop keel, page 30
Use a suitable inclination angle
Ideally, the transducer face should be mounted in parallel with the sea surface when the
vessel is in normal trim, as this will provide the most accurate echo information. However, it
is also very important that the water flow over the transducer face is laminar.
In order to ensure laminar flow, the transducer
face may be tilted slightly upwards in relation
to the water flow. This allows the flowing
water to meet the face directly, and assures
laminar flow.
The inclination angle must however be determined carefully. The angle must be small on
transducers with a narrow beam angles. As a rule of thumb, mount transducers with beam
angles smaller than seven degrees with minimum inclination angle. The smaller beam angle
your transducer has, the smaller the inclination angle can be.
Note
Ensure that you do not mount the transducer with a negative inclination angle. This may
cause turbulence under the transducer face, and reduced echo sounder performance.
Related topics
Streamlined housing mounted externally on a steel hull, page 41
Streamlined housing mounted externally on a wooden or polyester hull, page 44
Mounting the transducer on a steel hull, page 26
Mounting the transducer on a wooden or polyester hull, page 28
Mounting the transducer on a blister or drop keel, page 30
Simrad ES38-18/200–18C Installation manual