Signature55
> 1000 m current profiling range for stand-alone and online applications
The Signature55 ADCP is a current profiler that combines an ultralong range with a compact layout. Novel ADCP transducer design allows 1000 m profiles concurrent with slightly shorter-range, finer resolution measurements using two different frequencies in the same instrument.
Description
The Signature55 ADCP is a current profiler that combines an ultralong range with a compact layout. Novel ADCP transducer design allows 1000 m profiles concurrent with slightly shorter-range, finer resolution measurements using two different frequencies in the same instrument. The more than 90% lower power consumption (compared to similar ADCPs) also permits long-duration deployments operating on internal batteries only.
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Specifications
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General
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Year of last update
2015
Width [m]
0.65
Height [m]
3.13
Weight in air [kg]
55
Weight in water [kg]
26
Min. operating power [V]
12
Max. operating power [V]
48
Max. operating depth [m]
1500
Max. battery lifetime [days]
180
True Bottom Tracking Capability
N
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Other specifications
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Real-time interfacing
real-time observing
Min. external power [Voltage]
15
Max. external power [Voltage]
48
External battery container
Y
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Auxiliary Sensors
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Pressure
Y
-
Deployment method
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Moving vessel
N
Bottom mount
Y
Inline string mooring
Y
Data Buoy
Y
Marine structures
Y
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Doppler Current Profiler
-
Center working frequency [kHz]
55 or 75
Max. typical profiling range [m]
1000
Number of beams
3
Nadir angle [deg]
20
Max. Number of cells per beam
200
Min. blanking distance [m]
2
Max. ping rate [Hz]
1
Min. cell size [m]
5
Max. cell size [m]
20
Cell overlap [%]
50
Max. velocity [m/s]
5
Speed dependent uncertainty: horizontal [%]
1
Speed independent uncertainty: horizontal [cm/s]
0.5
Surface reference capability
Y
Compensation for sound speed
Y
Single ping rejection of outliers
Y
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Standard Sensors
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Temperature: min [°C]
-4
Temperature: max. [°C]
40
Temperature: uncertainty [°C]
0.1
Tilt: uncertainty [deg]
0.2
Compass type
Magnetic
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Application
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Typical applications
platform or buoy, long range, renewable energy,