Topic 2 About the Technology
1. The Technology
1.1. Inertial Measurement Unit
The IMU or Inertial Measurement Unit is a small onboard computer that houses the software to fly the RPA. The software via the IMU takes information from the onboard GPS, Compass, barometer altimeter, and accelerometers processes it, and delivers information out to the motors via their ESC (Electronic Speed Controllers). In the case of the Mavic 2 Pro, each of the 4 motors has its ESC which controls power to a small brushless motor. It’s the power or the torque of each of these motors that determine the lift and direction of the device via the motors propellers(aerofoils). Depending on the model of RPA these aerofoils can spin up to 10 thousand RPM or higher. The integration of all the critical control components and software is referred to as the Flight Control System (FCS). This control system is monitoring and acts on signal and sensor information hundreds of times a second.
Check your knowledge using the quiz below.
RPA IMU – Device can often contain IMU GPS and other components as one unit