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Products » Inertial Navigation & Motion Sensing

inertial_thumbnaillInertial Navigation & Motion Sensingrounded

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.

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DP-INSrounded

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)
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Lodestar Motion Sensor rounded

Key Features
Single box solution for motion sensor and gyrocompass
0.04 degree heading precision 
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
Designed and Approved to IMO Resolution A424(XI)
Datasheets
Lodestar Surface
Lodestar Subsea
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Radian Motion Sensor (AHRS) rounded

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 <450mw dd="">
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
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SPRINT Subsea Inertial Navigationrounded

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)
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