IMUs are typically used to maneuver aircraft (an attitude and heading reference system), including unmanned aerial vehicles (UAVs), among many others, and spacecraft, including satellites and landers. Recent developments allow for the production of IMU-enabled GPS devices.
How does an IMU know which way is down?
The answer is that it senses gravity. In physics, we often use this term “acceleration due to gravity” when we talk about gravitational forces. That's because gravity is measured in acceleration. On our phones, usually, an IMU with a 3-axis accelerometer is used to sense the direction on which the gravity is acting on.11 Sept 2021
What does IMU measure in drone?
An IMU (inertial measurement unit) is a device that combines inertial sensors gyroscopes and accelerometers to provide acceleration and orientation data that can be used to calculate position and velocity.
What is IMU on my drone?
What is a drone's IMU? IMU (inertial measurement unit) calibration is one of those things that is critical to keeping your drone straight and level. The IMU is a sensor that detects motion along a horizontal plane, as well as increases and decreases in altitude.1 Apr 2019
Do I have to calibrate my drone every time?
Calibration is also needed if your drone has been flying inconsistently or not flying like it usually does. Many experts believe that a drone needs calibrating each time that it operates, especially if it will be flying in a new location.