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Signature55

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

General

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

Other specifications

Real-time interfacing

real-time observing

Min. external power [Voltage]

15

Max. external power [Voltage]

48

External battery container

Y

Auxiliary Sensors

Pressure

Y

Deployment method

Moving vessel

N

Bottom mount

Y

Inline string mooring

Y

Data Buoy

Y

Marine structures

Y

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

Standard Sensors

Temperature: min [°C]

-4

Temperature: max. [°C]

40

Temperature: uncertainty [°C]

0.1

Tilt: uncertainty [deg]

0.2

Compass type

Magnetic

Application

Typical applications

platform or buoy, long range, renewable energy,

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