Delivering Trusted Solutions For Subsea Acoustics
Inertial Navigation & Motion Sensing
Acoustically Aided INS and Motion Sensing
Sonardyne’s aided inertial navigation systems are designed for the most demanding subsea survey, construction and vessel positioning applications.
At their centre is the Lodestar motion sensing instrument platform (Attitude and Heading Reference System-AHRS) which is tightly integrated with Sonardyne’s acoustic positioning components; providing power and control of surface and subsea transceivers as well as instruments such as Doppler Velocity Logs. The seamless integration of acoustics and inertial technologies exploits the long term accuracy and precision characteristics of acoustic positioning with the continuous availability and fast update rate from high grade inertial sensors.
DP-INS For Ranger 2 and Marksman
- Key Features
- Incorporates Sonardyne's 6G® Technology
- Incorporates Sonardyne's Wideband 2® signal Technology
- Dramatically faster and easier to set-up, calibrate and operate
- Single box solution for motion
sensor and gyrocompass - Provides an independent DP reference
- Ride through capability - resilient to effects such as aeration and noise
- LUSBL accuracy from a single transponder
- Independence from GPS disruptions
- Update rates to match DP model
- Three fold improvement over standard USBL repeatability
- Potential for fuel and operational savings
- Brochure
- DP-INS (PDF)
- DP-INS (Digital Version)
- Related Articles
- Dynamic Positioning Sea Trials for Oceaneering's Ocean Intervention
Lodestar Motion Sensor
- Key Features
- Single box solution for motion sensor and gyrocompass
- 0.1 degree heading accuracy
- 0.01 degree roll and pitch accuracy
- 5cm / 5% heave accuracy
- Fast follow up speed of 500/Sec
- Available in surface and subsea versions rated to 1000, 3000, 5000 metres
- Ethernet interface
- Transport approved Li-Ion battery back up as standard
- Flexible power input AC or DC
- On board 8GB memory (Expandable to 32GB)
- MTBF RLG >300,000 hours MTBF Lodestar >50,000 hours
- Datasheets
- Lodestar Surface
- Lodestar Subsea
- Related Articles
- USBL: The right attitude makes it perfect
- Heading in the right direction
- Subsea 7 completes record North Sea pipe bundle contracts using Sonardyne 6G technology
- Technologies for AUVs: Positioning, navigation, communication
Radian Motion Sensor (AHRS)
- Features & Benefits
- Miniature affordable marine high accuracy magnetic heading, pitch and roll sensor
- Surface or Subsea (300 or 3,000 Metre depth rating)
- Industry standard serial outputs
Supplied with advanced software - 18 to 50 Volt input range
Low power consumption - High update rate of 100Hz
- Low latency
Suitable for highly dynamic conditions as gyro compensated - Magnetic field calibration system provided
- Applications
- Inshore hydrographic survey
- Vessels: Compensation of Bathymetry systems, Dynamic Position system input
- ROVs : Orientation displays, Imaging sonar compensation
- AUVs : Dead reckoning, Imaging sonar compensation
- Datasheet
- Radian
SPRINT Inertial Metrology
- SPRINT Metrology at a glance
- Incorporates Sonardyne's 6G® Technology
- Incorporates Sonardyne's Wideband 2® signal Technology
- SPRINT ROVs are metrology ‘ready’
- Easy ROV handling; lightweight sensor protected within ROV
- Integration with proven 6G LBL acoustics reduces risk
- Use of GyroCompatt or inclinometer Compatts provide hub orientation and transponder mounting QC
- Data logged in real time; backed-up using SPRINT’s internal memory
- Results available immediately, no need to recover ROV
- Independent measurements for QC
- Brochure
- SPRINT Inertial Metrology
- Related Articles
- Inertial solutions for subsea metrology
SPRINT Subsea Inertial Navigation
- Features & Benefits
- Incorporates Sonardyne's 6G® Technology
- Incorporates Sonardyne's Wideband 2® signal Technology
- Extends performance of USBL systems
- Resilient to acoustic aeration and noise
- High update rate and repeatability for greater vehicle control
- Vendor independent USBL aiding
- IMO-certified AHRS: parallel INS output
- Sparse LBL saves operational time and vessel costs
- Measurement redundancy increases data integrity
- Flexible installation options
- Brochure
- SPRINT
- SPRINT (Digital Version)
- Related Articles
- Less Is More
- SPRINT: Subsea inertial navigation aids ROV positioning
- Oceaneering ROV flies with SPRINT
