ROV
A Motion Sensor also called an AHRS provides real-time Roll, Pitch and Heading information that could be used to help the operator to maneuver the ROV.
Indeed, without the attitude information, it could be difficult to always figure out if the ROV is well positioned.
Recommended products
Ellipse 2 Micro AHRS
Volume Application
Ellipse 2 Micro AHRS is a small-sized Attitude and Heading Reference System (AHRS). It provides Roll, Pitch, and Heading based on magnetometers.
Ellipse2-A
Motion Sensor
Ellipse2-A is a small-sized high performance Attitude and Heading Reference System (AHRS). It provides Roll, Pitch, and Heading.
Ellipse 2 Micro IMU
Calibrated IMU Data
Ellipse 2 Micro IMU is an Inertial Measurement Unit. It embeds 3 gyroscopes, 3 accelerometers, 3 magnetometers and a temperature sensor.
Case studies
PingDSP Sonar
Ping Sonar The introduction of the iDX reaffirms PingDSP as the leading innovator and developer of sonar technology for shallow water hydrography and imaging. “Performance, versatility and simplicity, that’s what shallow water hydrographers want, and that’s exactly what the 3DSS‐iDX is all about”, says Dr. Paul Kraeutner, PingDSP’s founder and CEO. 3DSS‐iDX‐450 Sonar with new … Continued
Wave Buoys in the Arctic Sea Ice
Marginal Ice Zone (MIZ) Program Over recent decades the Arctic has warmed more than any other region leading to significant reduction in sea ice volume. The combination of increased ice-free area and more mobile ice cover has led to the emergence of a seasonal marginal ice zone (MIZ) in the Beaufort Sea. The Office of … Continued
MTR Article on Bathymetric USV
The Perfect INS for USV-based Bathymetry Like most unmanned systems, USVs have space and power constraints. Ekinox-D is the best INS to be integrated into this type of vehicle. Weighing less than 600 grams and low power (<7W), the Ekinox-D INS integrates an RTK dual antenna GNSS receiver for a centimeter-level position. It provides a … Continued
Tips
Installation Tips
If you choose a model which relies on magnetometers for heading information, it will be sensitive to iron. The inertial sensor should be mounted far from engine(s) and other magnetic disturbances.
Onboard Magnetic Calibration
The SBG on-board calibration tool allows calibration in water. It ensures a precise heading in all orientation by taking into account the real environment where the ROV will be operated.
Difference between an IMU, an AHRS, and an INS
The Inertial Measurement Unit (IMU) outputs gyroscopes, accelerometers, and magnetometers raw data. The Attitude and Heading Reference System (AHRS) embeds an Extended Kalman Filter (EKF) to deliver orientation data, and the Inertial Navigation System (INS) additionally embeds a GNSS receiver for a filtered position in real-time.
