SPRINT-Nav Mini (deep water)

Hybrid Acoustic-Intertial Navigator

SPRINT-Nav Mini fuses AHRS, DVL and depth data into a single, lightweight instrument, giving you fast, precise and robust guidance and control information. So, no more drifting off station because you’ve lost bottom lock and no more depth variation because your pressure sensor is affected by wave action. Factory pre-calibration makes commissioning worry free.

Sonardyne International

Yateley, GB

Description

Measuring in 215 mm in height, 149 mm in diameter and weighing in at approximately 3.6 kg in air – or 7.1 kg for the 4000 m depth version – for something so small, SPRINT-Nav Mini packs a big punch for observation-class, electric and drill support work-class ROVs. Use it also in support of unmanned systems working in GPS denied environments, as well as towfish, diver swim-boards and swimmer delivery vehicles.

SPRINT-Nav Mini is powered by the same hybrid acoustic-inertial navigation algorithm you’ll find inside our established SPRINT-Nav family. This combines the strengths of all the sensors contained within to provide robust, precise and accurate outputs. It continues to work even in challenging environments and provides a continuous stream of orientation, velocities, depth and altitude at up to 200 updates per second.

SPRINT-Nav Mini arrives pre-calibrated from the factory, meaning there is no need to manoeuvre your vehicle every time the unit is mobilised. SPRINT-Nav Mini does the thinking for you, all in a single plug-and-play unit. Turn it on, give it a latitude, and away you go. However, despite its extremely small size, it’s still a true north seeking gyrocompass which won’t drift over time unlike MEMS-based systems. The output can be fed directly to your own (or a third party) user interface or vehicle control software. The simple Web User Interface makes set up and configuration painless. It could not be any simpler.

Two versions of SPRINT-Nav Mini are available; a 300 metre, and a 4000 metre depth rated unit.

Specifications

Other specifications: Graphical user interface

Y

Typical application

Subsea vehicles, i.e. ROV, AUV, etc.

Distinguishable features

Smallest hybrid acoustic-inertial navigator in the market

Environmental: Non-operating shock tolerance [g]

30

Operating shock tolerance [g]

10

Min. operating temperature [°C]

-5

Max. operating temperature [°C]

55

Max. rotation speed [deg/s]

450

Doppler log aided uncertainty: Heading [deg]

0.5

Pitch [deg]

0.1

Roll [deg]

0.1

General: Type of application

Marine

Year of initial development

2020

Height [m]

0.215

Width [m]

0.149

Weight [kg]

7.1

Power consumption [W]

10

Splashproof casting

Y

Water resistant casting

Y

Water resistance [m]

4000

Min. Voltage (DC)

22

Max. Voltage (DC)

26

Type of accelerometer

MEMS

Type of gyro

FOG