INERTIAL SENSOR OR IMU SENSOR

What is an inertial sensor?
An inertial sensor or also known as IMU (inertial measurement unit) is a component capable of obtaining the position, orientation, and speed of any device where it is used. Its construction can be a bit complex because it is made up of 3 different sensors. Within these gyroscopes, accelerometers and magnetometers are incorporated.

IMU sensor

How does an inertial sensor work?
Each of the added sensors provides a function to achieve a single result. The gyroscope is in charge of measuring the turns made, while the accelerometer measures the linear acceleration that is carried out to either side and finally the magnetometer obtains information about the magnetic north to always be located with respect to the earth’s magnetic field.

inertial sensor

What uses or applications does it have?
Because this sensor does not need any reference to obtain speed and angular position, its fields of application can be quite wide, they can be used in any system or object in which it is necessary to know its displacement, such as:

In aviation
sports
Robotics
Medicine (patient rehabilitation)
In each of these cases, its application has the same purpose, “To know the position or displacement”.

In the case of aviation, if we insert this sensor in an airplane, it will inform us that it traveled east for 60 minutes with an average speed of 815 km / h. For the sports and robotics saucepan, it is the same only that instead of planes they can be balls, balls, runners or robots. The same happens in medicine, except that in this case the movement of patients or joints is measured.

IMU applications

References:

Robdosteam
Biomech