µPAP 201-3 NEL
The μPAP Precision Acoustic Positioning system operates in SSBL mode (LBL is also possible) where it measures the distance and direction to subsea transponders and computes a 3D position in local coordinates or in geographical coordinates. I
Description
The μPAP Precision Acoustic Positioning system operates in SSBL mode (LBL is also possible) where it measures the distance and direction to subsea transponders and computes a 3D position in local coordinates or in geographical coordinates. It offers high accuracy but is smaller, more compact and easier to install on a vessel or other surface unit than larger acoustic positioning systems. The size, weight and ease of installation makes μPAP a more flexible solution ideal for a diverse range of applications including, Aquaculture, Seabed Survey, Seabed Cleaning, Marine Research, Diving Operations, Underwater Construction, ROV Operations, Shallow Water Seismic, Shallow Water Inspection, Ocean Renewable Energy and Salt to Fresh Water Production.
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Specifications
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Physical properties of transducer head
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Diameter [mm]
190
Height [m]
400
Min. external power [Voltage]
85
Max. external power [Voltage]
264
Max power consumption [W]
350
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System Parameters
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Frequency {kHz}
20-30
Spread spectrum technology
Y
Min. operation range {m}
1
Max. operation range {m}
995
Operation beam angle {deg}
160
Angle accuracy (degr) @ 20 dB
0.25
Focussed beam forming
Y
Focussed beam angle {degr}
22
Number of active elements
9
Number of transponder channels
560
Multi user functionality
Y
LBL-functionality
Y
Horizontal accuracy (in % of the water depth)
0.46
Vertical accuracy (in % of the water depth)
0.46
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Motion compensation
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Motion sensors compatible to the system:
Inbuild Seatex MRU-3
Required pitch uncertainty [deg}
0.08
Required roll uncertainty [deg]
0.08
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Speed of sound
-
Ray tracing
Y
Real-time integration of SV-profile
Y
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Deployment
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Outside deployment pole available
Y
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Mounting and deployment
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Mounting
Portable
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Used Sonar Methods
-
Type of system
SSBL Super Short Base Line
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General
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Date of first release
2015