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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 grade, highly reliability, commercially available, Ring

Sonardyne International Ltd.
Blackbushe Business Park
GU46 6GD Yateley
United Kingdom of Great Britain & Northern Ireland
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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

  • 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
  • Non-operating shock tolerance [g]
    22
  • Operating shock tolerance [g]
    10
  • Min. operating temperature [C]
    -20
  • Max. operating temperature [C]
    55
  • Max. rotation speed [deg/s]
    900
  • NMEA formats
    GGA; GLL; ZDA; VTG; ACK; HDT; THS; TXT; ALR
  • RTCM
    N
  • Other
    binary and ASCII messages
  • 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
  • Heading [deg]
    0.1
  • Pitch [deg]
    0.01
  • Roll [deg]
    0.01
  • Heave [m]
    0.05
  • Surge/sway [m]
    0.05
  • Heading [deg]
    0.1
  • Pitch [deg]
    0.01
  • Roll [deg]
    0.01
  • Heave [m]
    0.02
  • Decrease in position accuracy [m/hr]
    3
  • Heading [deg]
    0.1
  • Pitch [deg]
    0.01
  • Roll [deg]
    0.01
  • Heave [m]
    0.05
  • Decrease in position accuracy [m/hr]
    0.3
  • Accelerometer bias [ยต-g]
    200
  • gyro bias [deg/hr]
    0.0035
  • Calibration procedure
    IMU is factory calibrated - no user calibration required. DVL calibration procedure supplied
  • 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
  • Graphical user interface
    Y
  • Typical application
    Subsea vehicle inertial navigation
  • Export restrictions
    US Commerce controled
  • Number of integrated GNSS receivers and antenna ports
    0

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