Sonardyne - Delivering trusted solutions for acoustic positioning, inertial navigation, wireless communications, sonar imaging
- Overview
- Key Features
- Incorporates Sonardyne's 6G® Technology
- Incorporates Sonardyne's Wideband 2® signal Technology
- Sonardyne Wideband® acoustic positioning transponder and Lodestar AHRS unit in a single subsea housing
- Rechargeable 20 hour internal battery pack; option for external power
- Acoustic and manual ROV On/Off switch for Lodestar AHRS
- Upgradable to LBL aided INS
- Sonardyne Wideband® and Kongsberg HPR 400 compatible
- Autonomous data logging mode (sensor data and ranges)
- Faster command and configuration
- Simultaneous ranging and sensor data recovery in one transmission
- Integrated sound speed and pressure sensor with an additional port for auxiliary sensors
- Real time diagnostics on range measurements for quality control
- High speed acoustic modem
- Compact size for ease of handling and ROV deployment/recovery
- Data telegram output and 24V available for ROV displays
- Lodestar IMO certifie
- Datasheets
- Lodestar GyroCompatt 6
- Lodestar GyroCompatt 5
The Lodestar GyroCompatt (LGC) integrates Sonardyne’s Wideband® acoustic positioning and Lodestar Attitude and Hearing Reference Technology (in one small, highly versatile and robust instrument. This provides high update rate wireless attitude, heading, heave, surge, sway, pressure, SV and acoustic positioning of any subsea object.
Two versions of Lodestar GyroCompatt are now available; Lodestar GyroCompatt 5 is compatibale with Sonardyne's 5th generation Long BaseLine technology such as the Compatt 5 subsea transponder. Lauched in March 2010, Lodestar GyroCompatt 6 is compatble with Sonardyne's new 6G (Sixth Generation) technology platform which uses the latest Wideband 2 signal architecture.
Compatible with USBL and LBL positioning systems, the Lodestar GyroCompatt product family provides real time motion data for structure deployment via the integrated high speed acoustic modem.
The internal high capacity rechargeable battery pack enables quick charge times and up to 20 hours of continuous operation with the ability to turn the gyro on and off to save battery life giving over two months of transponder life. The instrument is small and light enough to be ROV installed and a mechanical stab enables precision alignment to any structure.
- applications
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Structure position and orientation can be accurately determined during lowering, set-down and as-built surveys. Using the Lodestar GyroCompatt 6 for metrology delivers the measurements required for pipe-end coupling.
The stab, gyro and transducer are pre-aligned and this speeds up spot measurements as only single observations are required.
Autonomous logging negates the need for a vessel and ROV to be on standby taking measurement during long term settlement observations.
Modular construction allows for upgrade and service access to the transponder module.
- Specifications
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Feature Type 8084 - Lodestar GyroCompatt 5 Type 8084-3164 - Lodestar GyroCompatt 6 Depth Rating 3000 Metres 3000 Metres Opertaing Temperature -5ºC to +40ºC -5ºC to +40ºC Operating Shock Rating 22g, 11ms Half Sine 22g, 11ms Half Sine External Battery Pack / ROV Supply 24V (18-50V) 24V (18-50V) Battery Life Acoustic Navigation Standby 2 Months 2 Months Lodestar Permanently Powered On 20 Hours 20 Hours Acoustic Compatt Operating Frequency MF (19-33.5kHz) Sonardyne Wideband 1 MF (19-33.5kHz) Sonardyne Wideband 2 Transmit Source Level 185-192db re 1uPa @ 1m (5 levels) 185-192db re 1uPa @ 1m (5 levels) Positioning Accuracy +/- 5cm +/- 5cm Telemetry Protocol Sonarydne SMS and Modem Sonarydne SMS and Modem Ranges Tracked 14 simultaneous replies 14 simultaneous replies Lodestar AHRS Heading Range 0-360° 0-360° Accuracy 0.10° secant latitude rms 0.10° secant latitude rms Settle Time Follow Up Speed 500º / second 500º / second Resolution 0.01º 0.01º Roll & Pitch Range ±180º (No physical limit) ±180º (No physical limit) Accuracy 0.05º 0.01º Resolution 0.01º 0.01º Heave Range ±99m ±99m Accuracy (Real Time) 5cm or 5% (Whichever the greater) 5cm or 5% (Whichever the greater) Bandwidth User Selectable User Selectable Resolution 0.01m 0.01m Digital Output Output Telegram (e.g. For ROV LED display Yes Yes ROV Switch Contact Closure Yes Yes Data Back-up Data Logger 8GB internal memory (expandable to 32GB) to allow
post processing of mission data8GB internal memory (expandable to 32GB) to allow
post processing of mission dataOptions Remote Transducer for ROV applications Available Available Sensors Sound Speed Sensor +/- 0.03 m/s +/- 0.03 m/s Pressure (Strain Gauge or Paroscientific DigiQuartz) 0.01% FS 0.01% FS Physical Size (Dia x Length) 250mm x 900.2mm 250mm x 900.2mm Weight in Air/ Weight in Water 42kg / 13.8kg 42kg / 13.8kg - Manuals
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