Designed for: Sonardyne Global Headquarters T. +44 (0) 1252 872288 F. +44 (0) 1252 876100 E. [email protected] www.sonardyne.com Datasheet Lodestar GyroUSBL Description Lodestar GyroUSBL combines a Sonardyne 6th (6G®) generation high performance HPT USBL transceiver and a Lodestar Attitude and Heading Reference System (AHRS) / Inertial Navigation System (INS) in the same mechanical assembly. With the AHRS / INS in fixed mechanical alignment to the USBL’s acoustic array, the Lodestar GyroUSBL can be quickly deployed without need for a USBL calibration to determine the alignment of the ship’s motion sensors to the acoustic transceiver. For certain applications, this can enable significant savings in vessel time and operational costs. The HPT transceiver component of the instrument utilises the latest Sonardyne Wideband®2 signal processing and is fully compatible with other products in the new Sonardyne 6G equipment range. Lodestar is tightly integrated into the USBL system providing power and communications to the HPT transceiver and embedded highly accurate time-stamping of all motion and acoustic data. This enables unparalleled precision and accuracy of position estimation by removing many of the sources of error associated with all USBLs such as lever arm offsets, pole bending, and ship flexing. In addition, because many of the system parameters are now fixed, no USBL calibration is required during installation so the system is easier to install and set-up. Precision of better than 0.3% of slant range is achievable out of the box, or a oneoff calibration can push this figure to less than 0.1% of slant range, depending on array type. Manufactured in Aluminium-Bronze the Lodestar GyroUSBL is ideally suited for short term temporary installations on vessels of opportunity using through-hull or over-the-side poles. It is also ideal for permanent installation on flexible stem tubes. In case of operational damage to the USBL transducer array, all electronics are robustly protected behind a double-sealed, pressure-resistant bulkhead. This ensures that if the transducer face is breached, the Lodestar and acoustic transceiver do not flood. Key features • Integrated Sonardyne 6G Wideband 2 USBL transceiver and Lodestar AHRS / INS offering high performance • Available in two versions; standard and deepwater optimised • Calibration free offering rapid setup • Class leading system precision and accuracy. • Sonardyne Marksman LUSBL, DPINS and Ranger 2 USBL compatible • Water-blocked transducer array protects electronics in the event of damage • Compatible with Sonardyne’s through-hull, over-the-side and stem tube deployment systems • Ethernet connectivity Designed for: Sonardyne Global Headquarters T. +44 (0) 1252 872288 F. +44 (0) 1252 876100 E. [email protected] www.sonardyne.com Specifications Lodestar GyroUSBL Features Operational Frequency Transceiver Operating Range Performance Acoustic Coverage Transmit Source Level Range Accuracy Positioning Repeatability SL = dB re 1 uPa @ 1 m Tone Equivalent Energy (TEE)* Type 8084-000-0445 MF (19-34 kHz) Up to 7,000 Metres Up to ± 90º Type 8084-000-0447 MF (19-34 kHz) Up to 7,000 Metres Up to ±90º Optimised For Deep Water (Depending on Frequency of Operation) Better Than 15 mm Better Than 15 mm All Transceivers Tested to Better Than All Transceivers Tested to Better Than 0.1% of Slant Range 1 Drms 0.07% of Slant Range 1 Drms 200 dB 200 dB 206 dB 206 dB Specifications Common to all Variants Heading Pitch & Roll Heave Range Accuracy Settle Time Follow-up Speed Resolution Range Accuracy Resolution Range Accuracy (Real Time) Resolution Electrical Communication Environmental Operating Temperature Storage Temperature 0-360º 0.04 to 0.1º secant latitude <5 minutes 500º / second 0.01º ±180º (No physical limit) 0.01º 0.01º ±99 m 5 cm or 5% (Whichever the greater) 0.01 m 0-360º 0.04 to 0.1º secant latitude <5 minutes 500º / second 0.01º ±180º (No physical limit) 0.01º 0.01º ±99 m 5 cm or 5% (Whichever the greater) 0.01 m +48 V DC Max 160 W RS485, baud rate switchable, Ethernet 100 Mbps +48 V DC Max 160 W RS485, baud rate switchable, Ethernet 100 Mbps -5 to 40ºC -20 to 55ºC -5 to 40ºC -20 to 55ºC Dimensions; Length x Diameter 602 mm x 225 mm 626 mm x 310 mm Weight in Air (Water)** 51 kg (28.5 kg) 64 kg (38 kg) Note: The absolute accuracy of the system is dependent upon the beacon source level, vessel noise, water depth, mechanical rigidity of the transceiver deployment machine, SV knowledge and proper calibration of the total system using CASIUS *TEE – WBv2+ signals are 4x the duration of Sonardyne tone signals (WBv1 & WBv2 are 2x). The TEE figure shows the operational performance when comparing wideband and tone systems. **Estimated Weights. Specifications subject to change without notice - 01/2016