USBLs and SSBLs

Alpha & Alpha Portable USBL

Entry Level, Compact USBL Available as a Desk Top Version or Portable, for True Flexibility

Easytrak Alpha and Alpha Portable are the compact version of the applied acoustics’ range of lightweight USBL tracking systems that use a vessel-mounted transducer array to calculate the position of a subsea target equipped with an acoustic beacon.

applied acoustics

Great Yarmouth, GB

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Description

Easytrak Alpha and Alpha Portable are the compact, entry-level versions of the applied acoustics’ range of lightweight USBL tracking systems that use a vessel-mounted transducer array to calculate the position of a subsea target equipped with an acoustic beacon. Quick to deploy the Alpha USBL systems are ideally suited for small subsea vehicle operations, the monitoring of close-range subsea targets or diver tracking.

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Specifications

Transponders: Dimensions {mm}

52 x 298

Dry weight {kg}

1.2

Depth rating {m}

600 (As standard)

Additional functions

Compatible with industry standard transponders

Physical properties of transducer head: Diameter [mm]

78.5

Height [m]

0.37

Min. external power [Voltage]

18

Max. external power [Voltage]

240

Max power consumption [W]

72

System Parameters: Frequency {kHz}

18-32

Spread spectrum technology

N

Min. operation range {m}

1

Max. operation range {m}

500

Operation beam angle {deg}

180

Angle accuracy (degr) @ 20 dB

2

Focussed beam forming

N

Number of active elements

5

Number of transponder channels

4

Multi user functionality

N

LBL-functionality

N

Horizontal accuracy (in % of the water depth)

3.5

Vertical accuracy (in % of the water depth)

3

Motion compensation: Motion sensors compatible to the system:

Supplied internal AHRS sensor only, Internal GPS provided but external GPS & heading supported.

Required pitch uncertainty [deg}

1

Required roll uncertainty [deg]

1

Interfaces: Compatible hardware

Serial Input/Output

Compatible software

Operation specific software

Real-time access procedure

Via Serial Data Out

Inertial interfacing

N

Speed of sound: Ray tracing

N

Real-time integration of SV-profile

N

Deployment: Inside deployment pole available

Y

Diam gate valve {mm}

120

Outside deployment pole available

N

Recommended distance below keel {m}

2