APPLIED ACOUSTICS S-Boom System User manual
S-Boom System
Operation Manual
S-Boom Operation Manual
CAT-0303-8000/3
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Revision History
Issue Change
No. Reason for change Date
A N/A Draft 19/12/11
1 1158
Junction box layout and interlock wiring added.
Amend interlock splice & HV3000 cable. 27/06/12
2 1300
Addition of recommended lifting arrangement for the CAT303
Drawing updates 14/03/13
3 1416
New boomer plate model (AA252) added.
Addition of negative connection HV Junction Box plates.
Other minor amendments 17/12/13
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Table of Contents
REVISION HISTORY......................................................................................................................................... 2
1.INTRODUCTION TO THE S-BOOM SYSTEM ........................................................................................ 5
2.COMPONENTS ........................................................................................................................................ 6
3.THEORY OF OPERATION....................................................................................................................... 6
4.PULSE SIGNATURE................................................................................................................................ 7
5.DIMENSIONS ........................................................................................................................................... 8
6.CATAMARAN ASSEMBLY...................................................................................................................... 9
7.CONFIGURATION.................................................................................................................................. 13
HVJ3000 JUNCTION BOX LAYOUT .................................................................................................................. 14
HVJ3000 JUNCTION BOX BUZZ BAR ARRANGEMENT ....................................................................................... 15
S-BOOM TRIPLE BOOMER ARRANGEMENT (POSITIVE CONNECTION)................................................................. 15
DOUBLE BOOMER ARRANGEMENT (POSITIVE CONNECTION)............................................................................. 15
SINGLE BOOMER ARRANGEMENT (POSITIVE CONNECTION) .............................................................................. 16
TRIPLE BOOMER ARRANGEMENT (NEGATIVE CONNECTION).............................................................................. 16
DOUBLE BOOMER ARRANGEMENT (NEGATIVE CONNECTION)............................................................................ 17
SINGLE BOOMER ARRANGEMENT (NEGATIVE CONNECTION)............................................................................. 17
8.CABLING................................................................................................................................................ 18
HVJ3000 JUNCTION BOX INTERLOCK WIRING ................................................................................................. 18
INTERLOCK CABLING SUBSEA ......................................................................................................................... 19
AA252 THERMAL INTERLOCK WIRING ............................................................................................................. 20
HVC3000 CABLE........................................................................................................................................... 21
9.DEPLOYMENT / INSTALLATION.......................................................................................................... 22
LIFTING ARRANGEMENT.................................................................................................................................. 23
10.MAINTENANCE PROCEDURES........................................................................................................ 24
11.END OF LIFE RECYCLING / DISPOSAL........................................................................................... 24
12.SPECIFICATION................................................................................................................................. 25
PHYSICAL....................................................................................................................................................... 25
SOUND OUTPUT ............................................................................................................................................. 25
COMPATIBILITY............................................................................................................................................... 25
ELECTRICAL INPUT ......................................................................................................................................... 25
S-Boom Operation Manual
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Thank you for choosing Applied Acoustic Engineering as one of your subsea equipment suppliers.
We hope you experience many years of reliable operational use from our products.
If you do encounter any technical issues with any of our products then please don’t hesitate to
contact our Technical Team via the following methods.
Tel: +44 (0)1493 440355
Fax: +44 (0)1493 440720
Applied Acoustic Engineering Ltd has made every effort to ensure that the information contained in this
manual is correct at time of print. However our policy of continual product improvement means that we
cannot assume liability for any errors which may occur.
These written instructions must be followed fully for reliable and safe operation of the equipment that
this manual refers to. Applied Acoustic Engineering Ltd cannot be held responsible for any issues
arising from the improper use or maintenance of equipment referred to in this manual or failure of the
operator to adhere to the instructions laid out in this manual. The user must be familiar with the
contents of this manual before use or operation.
S-Boom Operation Manual
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1. Introduction to the S-Boom System
The S-Boom system is a high power hi-resolution repeatable sound source and when deployed
with a CSP-S 1200, the system can be operated at fast repetition rates. The transmitted energy
is focused by the array geometry to improve the directivity and beam pattern giving an
improvement over traditional seismic sound sources.
The frequency of operation and transmitted power levels allow the system to be used with both
single and multi-channel streamer hydrophone arrays for high resolution geological surveys for
construction, mapping, research and geo hazard.
The S-Boom sound source consists of 3 AA252 boomer plates complete with thermal interlock
for safe operation, a HVC3000 cable and a CAT303 catamaran. The system is powered by the
CSP range of seismic power supplies.
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2. Components
3 x AA252 boomer plates complete with thermal interlock for safe operation.
HVC3000 High Voltage Cable complete with HVJ3000 Junction Box.
CAT303 Catamaran
3. Theory of Operation
Each of the AA252 Boomer plates consist of an electrical coil, which is magnetically coupled to
the plate (metallic disc) situated behind a diaphragm. Energy contained in the electrical
storage capacitors in the CSP unit is discharged into the Boomer plate coil. This creates a
mechanical response on the diaphragm plate due to eddy currents on the plate. The resultant
acoustic pressure pulse is broad spectrum in nature. The Acoustic Pulse shape and
reverberation is controlled by damping springs.
Using a single CSP-S power source for all of the boomer plates results in the timing of the
transmissions being accurate to 2µs. Combining the 3 Boomer plates in a planar array forms a
directional beam pattern with a ~6dB improvement in directivity index compared to a single
Boomer plate. The resulting sound pressure level is increased whilst retaining resolution.
S-Boom Frequency Response
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4. Pulse Signature
Typical S-Boom Pulse Signature at 1000J
Pulse Width = 300 uSec
V peak to peak = 2.7 V
Source Level = 1.34462 V/Bar At2.5M
222.572 dB re 1.0V/uPa At2.5M
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5. Dimensions
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6. Catamaran Assembly
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S-Boom Operation Manual
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7. Configuration
The Boomer Plates are configured in a planar array and identified through the HVC3000 cabling to
the HVJ3000 Junction Box by colour code.
Forward AA252 = RED
Middle AA252 = YELLOW
Aft AA252 = BLUE
The S-Boom can be configured from the HVJ3000 Junction Box to use 1, 2 or 3 of the fitted
Boomer plates.
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HVJ3000 Junction Box Layout
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HVJ3000 Junction Box Buzz Bar Arrangement
Before attempting to configure the HVJ3000 junction box with any of the following arrangements,
ensure that all HV equipment is turned off and the HV cable from the CSP unit is disconnected.
Please note that the two bottom right studs are not common connections and must be used to
store the HV buzz bars when not in use.
S-Boom Triple Boomer Arrangement (Positive Connection)
Double Boomer Arrangement (Positive Connection)
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Single Boomer Arrangement (Positive Connection)
Triple Boomer Arrangement (Negative Connection)
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Double Boomer Arrangement (Negative Connection)
Single Boomer Arrangement (Negative Connection)
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8. Cabling
HVJ3000 Junction Box Interlock Wiring
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Interlock Cabling Subsea
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AA252 Thermal Interlock Wiring
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