20
401027/B
Where to install the transducer
Topics
Introduction to transducer location, page 20
Mount the transducer deep, page 20
Avoid protruding objects near the transducer, page 21
Keep the transducer far away from the propellers, page 22
Choose a transducer position far away from the bow thruster(s), page 22
Summary and general recommendations, page 22
Introduction to transducer location
A single 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.
Note
The information here must be considered as general advice. Each EM 712 installation
must be handled separately depending on the hull design and the other electrical and
mechanical systems installed on the vessel.
Mount the transducer deep
In order to achieve the best possible EM 712 performance, mount the transducer as
deep as possible under the vessel’s hull.
There are several reasons for this recommendation.
Flow noise
Consider the situations when the vessel is unloaded, and pitching in heavy seas. The
vessel is riding high, and the bow may even be lifted out of the water. This will cause a
lot of air to follow the shape of the hull.
The upper water layers of the sea contain a myriad of small air bubbles created by the
breaking waves. In heavy seas the upper 5 to 10 metres may be filled with air, and the
highest concentrations will be near the surface. Air bubbles absorb and reflect the sound
energy, and they may in worst cases block the sound transmission altogether.
Kongsberg EM 712 Installation manual
Содержание EM 712
Страница 1: ...401027 B June 2018 Kongsberg Maritime AS Kongsberg EM 712 Multibeam echo sounder Installation manual ...
Страница 68: ...68 401027 B Processing Unit Topics CBMF board dip switch setting page 69 Kongsberg EM 712 Installation manual ...
Страница 71: ...401027 B 71 216148 EM 712 Transducer TX1 dimensions Drawing file ...
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Страница 73: ...401027 B 73 221048 EM 712 Transducer TX2 dimensions Drawing file ...
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Страница 75: ...401027 B 75 219621 EM 712 Transducer RX1 dimensions Drawing file ...
Страница 76: ...76 401027 B Kongsberg EM 712 Installation manual ...
Страница 77: ...401027 B 77 216146 EM 712 Transducer RX2 dimensions Drawing file ...
Страница 78: ...78 401027 B Kongsberg EM 712 Installation manual ...
Страница 79: ...401027 B 79 223137 EM 712 Transducer mounting frame 0 5 degrees Drawing file ...
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Страница 85: ...401027 B 85 317812 EM 712 Casing w mounting frame 0 5 degrees Drawing file ...
Страница 86: ...86 401027 B 320320 EM 712 Casing w mounting frame 1 degree Kongsberg EM 712 Installation manual ...
Страница 87: ...401027 B 87 375817 EM 712 Combined casing w mounting frame 1 degree Drawing file ...
Страница 88: ...88 401027 B 331369 EM 712 Casing w mounting frame 2 degrees Kongsberg EM 712 Installation manual ...
Страница 89: ...401027 B 89 396402 EM 712 Transmitter Unit dimensions Drawing file ...
Страница 90: ...90 401027 B 212984 EM 712 Transmitter Unit mounting bracket Kongsberg EM 712 Installation manual ...
Страница 91: ...401027 B 91 396428 EM 712 Receiver Unit dimensions Drawing file ...
Страница 92: ...92 401027 B 385422 Processing Unit dimensions Kongsberg EM 712 Installation manual ...
Страница 93: ...401027 B 93 378828 Hydrographic Work Station dimensions Drawing file ...
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Страница 95: ...401027 B 95 371591 Rack installation kit dimenisons Drawing file ...
Страница 96: ...96 401027 B 370275 Remote Control Unit K REM dimensions Kongsberg EM 712 Installation manual ...
Страница 97: ...401027 B 97 Drawing file ...
Страница 98: ...98 401027 B 373962 Remote Control Unit K REM wiring diagram Kongsberg EM 712 Installation manual ...
Страница 112: ...112 401027 B RX array identification RX2 TX Unit identification 3 2 RX 3 4 2 RX 4 Kongsberg EM 712 Installation manual ...
Страница 163: ...401027 B 163 Certificates IEC 60945 IACS E10 Technical specifications ...
Страница 177: ...401027 B 177 7 Observe the handling rules for transducers Equipment handling ...
Страница 188: ... 2018 Kongsberg Maritime ...