Gimbal Camera
Low latency between physical motion and output is critical in this type of application, additionally is high bandwidth and precise synchronization.
The Ellipse sensors show a total latency of less than 3 ms between motion and output. Furthermore, these units are carefully designed with signal conditioning and FIR filtering to provide very low latency and high bandwidth while protecting the measurement from vibrations.
Finally, we also pay attention to the gyroscopes and accelerometers synchronization to achieve the best accuracy.
Recommended products
Ellipse 2 Micro IMU
Calibrated IMU Data
The Ellipse 2 Micro Series reduces size and cost of high performance inertial sensors for volume projects. Ellipse 2 Micro IMU embeds low noise gyroscopes, accelerometers, and a temperature sensor.
Ellipse-D
Dual Antenna RTK GNSS/INS
Ellipse-D is a compact Inertial Navigation System with integrated Dual-antenna RTK GNSS receiver for accurate Heading and Position. The new generation embeds a 64-bit architecture for high-end filtering processing. It provides Roll, Pitch, Heading, Heave, Velocity, and Position in real-time and post-processing.
Ellipse-N
Single Antenna RTK GNSS/INS
Ellipse-N is a small-sized high-performance RTK Inertial Navigation System (INS) with an integrated L1/L2 GNSS receiver. It provides Roll, Pitch, Heading, Heave, and centimetric GNSS position. Ellipse-N embeds the latest generation of dual frequency RTK GNSS receivers for a better satellite availability in harsh environments (i.e urban canyons).
Ellipse-A
Attitude
Ellipse-A is a small-sized high performance Attitude and Heading Reference System (AHRS). With its robust IP68 enclosure, its high output rate, and its extended dynamic temperature calibration, it operates perfectly in aerospace applications.
Case studies
BOE UAV-based Surveying
Versatile Solution for LiDAR data acquisition The ELV16 Scanner includes a complete drone-based aerial LiDAR data collection and control system. BOE scanner’s success centers around a superbly integrated Velodyne LiDAR sensor, Ellipse2-D inertial navigation system, GNSS antennas, an onboard computer, communication equipment, and a dedicated power supply. UAV Motion Compensation & Georeferencing The Ellipse2-D … Continued
UAV Flight Analysis
MASC UAV MASC is a small UAV developed for atmospheric boundary layer research. The IG-500N has been chosen to record the UAV position, ground speed, and attitude angles. Wind speed and direction can be accurately calculated by taking into account the airflow. In-flight wind computation might be tricky because airspeed and incident angles, measured by the embedded … Continued
Mars Rover UGV
The Mars Rover Project The McGill Robotics team designed the robot to participate in two international competitions which required every team to operate their rover, from a hidden control center, in a Mars-like desert environment through various runs to accomplish complex tasks. These tasks involved traversing rough terrains, carrying payload to remote locations, servicing … Continued
Tips
Check Latency, Bandwidth, and Synchronization
Low latency between a physical motion and output is very important in this type of application, additionally to a high bandwidth, and a precise synchronisation. Ellipse sensors show a total latency of less than 3 ms between motion and output, are carefully designed with signal conditionning and fir filtering to provide very low latency and a high bandwidth while protecting the measurement from vibrations. Finally, we also pay attention to gyroscopes to accelerometers synchronization and timing to achieve the best accuracy.
The Right Option for High Dynamics and Vibrations
SBG inertial sensors are highly resistant to shock and vibration. They also embed specific algorithms to filter vibration. When choosing the right inertial sensor, note that the A3 accelerometer (16g) is the right option for harsh environments.
High frequency Output
SBG Ellipse IMU delivers a 1,000 Hz raw data with very low latency. Data are highly reliable as every sensor is extensively calibrated in temperature, from -40 to +85°C.
Difference between IMU, AHRS, and 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.
