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SPRINT 700 INS

SPRINT 700 INS

SPRINT 700 is a combined solid-state Attitude and Heading Reference System (AHRS) and SPRINT Acoustically Aided Inertial Navigation System (AAINS). The instrument is comprised of three high grades, high reliability, commercially available, Ring Laser Gyros (RLG) and accelerometers. The sensors are also the standard for commercial aviation with a proven 15+ year track record. The AHRS requires no external aiding and can settle in 5 minutes or less in dynamic conditions.

Sonardyne International
Yateley, GB

Description

SPRINT 700 is a combined solid state Attitude and Heading Reference System (AHRS) and SPRINT Acoustically Aided Inertial Navigation System (AAINS). The instrument is comprised of three high grade, highly reliability, commercially available, Ring Laser Gyros (RLG) and accelerometers. The sensors are also the standard for commercial aviation with a proven 15+ year track record. The AHRS requires no external aiding and can settle in 5 minutes or less in dynamic conditions. INS adds advanced Aided Inertial Navigation that runs concurrently with the AHRS algorithm. This dual algorithm capability is unique in the market and allows for dual use from one inertial instrument, e.g. AHRS for ROV, INS for Survey. On-board data storage and backup battery functionality ensures continued operation and no data-loss even if communications or external power is lost.

Specifications

Other specifications

Graphical user interface

Y

Typical application

Subsea vehicle inertial navigation

Export restrictions

US Commerce controled

Environmental

Non-operating shock tolerance [g]

22

Operating shock tolerance [g]

10

Max. rotation speed [deg/s]

900

Min. operating temperature [Ā°C]

-20

Max. operating temperature [Ā°C]

55

Software

Name

SPRINT

Filtering

Y

Adaptable filter strength

Yes

Adaptable input signals

Y

Integrity monitoring of position input

Y

Integrity monitoring of log input

Y

Max. number of position input signals

3

Max. number of log input signals

1

Maximum latency of position input [ms]

10000

Uncertainty indicators given in output

std. dev

Uncertainty of time stamp for output [ms]

0.001

Doppler log aided uncertainty

Heading [deg]

0.1

Pitch [deg]

0.01

Roll [deg]

0.01

Heave [m]

0.02

Decrease in position accuracy [m/hr]

3

GNSS aided uncertainty

Heading [deg]

0.04

Pitch [deg]

0.01

Roll [deg]

0.01

Heave: constant part [m]

0.05

Heave: variable part [%]

5

Surge/sway [m]

0.05

General

Height [m]

0.26

Width [m]

0.205

Weight [kg]

18.5

Power consumption [W]

15

Splashproof casting

Y

Water resistant casting

Y

Water resistance [m]

6000

Mean time between failures [hr]

400000

Type of accelerometer

Closed-loop (force feedback) Q-Flex

Type of gyro

Ring Laser

Removable from base plate

Y

Type of application

Marine

Moving parts

N

EM log aided uncertainty

Heading [deg]

0.1

Pitch [deg]

0.01

Roll [deg]

0.01

Heave [m]

0.05

Surge/sway [m]

0.05

GNSS Positioning Sensor

Number of integrated GNSS receivers and antenna ports

0

Unaided uncertainty

Heading [deg]

0.1

Pitch [deg]

0.01

Roll [deg]

0.01

Heave [m]

0.05

Decrease in position accuracy [m/hr]

0.3

Data formats

NMEA formats

GGA; GLL; ZDA; VTG; ACK; HDT; THS; TXT; ALR

RTCM

N

Other

binary and ASCII messages

Inertial Measurement Unit

Accelerometer bias [Āµ-g]

200

gyro bias [deg/hr]

0.0035

Calibration procedure

IMU is factory calibrated - no user calibration required. DVL calibration procedure supplied

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