Ring Laser Gyro (RLG) - MiniRLG2

View 3D   More Pictures   Brochures   Manuals

Underwater exploration and operations are pushing into deeper waters and harsher environments around the world, and they demand greater measurement accuracy. MiniRLG2 is a high grade inertial measurement unit that meets the ever increasing demands for accurate measurement of attitude, orientation, position, and navigation offshore. It uses ring laser gyro (RLG) technology giving a product that is highly accurate, stable, small and light, and has no moving parts.   It can provide a variety of functions from heading, pitch, and roll sensor, to the core of a sophisticated inertial measurement unit taking aiding inputs from Doppler log, GPS, velocity, and depth sensors.   MiniRLG2 has been designed to meet the demands of the offshore industry and provides a variety of data output formats. It is fully compatible with industry-standard acoustic and integrated sensor packages.   A preset output provides the fast, highly dynamic data needed for aided inertial applications. A further two data outputs are user-selectable for input to survey computers, multibeam sonar, ROV and AUV control systems.   Two variants of this product, MiniPOS2 and MiniPOS/NAV additionally give navigation outputs in real world WGS84 coordinates. Built into your vehicle control system, these products will allow you to implement functions such as auto-hover, waypoint navigation and remote docking. Features: Survey Gyrocompass Inertial measurement DVL, GPS aiding Heave surge sway o/p Highly rugged No moving parts Various data outputs USBL integration     Products Specification: IMU Specification Heading accuracy                                               0.169 degrees**                  Pitch and roll                                                       0.028      degrees*                                             Angle random walk                                             0.02        degrees/root hour                                              Bias repeatability                                                 0.1          degrees/hour*                    Scale factor repeatability                                   75           ppm                                      Axis alignment                                                     20           arc-second                                          Heave, Surge, Sway                                           5% or 5cm               Telemetry Interface: Bi-Directional RS422 or RS232                                         4 Serial Ports: 115kbaud 50/100Hz inertial data with fixed format available on all ports Up to 115kbaud, up to 50Hz ascii with a variety of user-selectable formats available on all ports                                                                                                   Depth Rating:                                     3,000 metres (Standard)                                   4,000 metres (Optional) 6,000 metres (Optional)   Power Requirements:                                     Consumption                                       Between 20 and 35W (depends on configuration)                                                                           Supply Voltage (AC and DC available as standard)                                                                                                 AC                                                         100-260Vac                                                                                         DC                                                         20-30Vdc   Weights and Dimensions:                                               Subsea unit                                          177mm dia by 268mm                      (7.0" dia. X 10.6”) Weight dry                                             9.8kg                                                      (21.6lbs)                                                                                                             Weight in water                                    2.5kg                                                      (5.5lbs)                                   Mounting (4 holes):                                                                                          M10 144 x 144 mm                             (M10 5.67 x 5.67”)   Settling Time:                                     10 minutes from switch on   * RMS ** RMS sec (latitude)