Introduction to Imu

IMU
Inertial Measurement Unit
Help you measure tilt angle and angular velocity…

Topics We’ll cover today…
• • • • • • • • What is an IMU... ? Few Examples and Videos Accelerometer Gyrometer Magnetometer Filters Euler Angles Demos

By:-

Vivek Kumar
Vipul Gupta

(viveks@)
(vipgupta@)

Abhishek sharma (abhishr@)

So... Lets Start... 
• What is an IMU...?
• • • • • • • Few Examples and Videos Accelerometer Gyrometer Magnetometer Filters Euler Angles Demos

Why do we need IMU...
• One of the main problems during autonomous mobile objects’ development is the problem of precise navigation. • In order to navigate the object it is required to know the exact position and orientation of the object in relation to the known environment.

• Size of an MEMS IMU...

What is an IMU… ?
• Inertial Measurement Unit (IMU) is an electronic device that measures a body’s velocity, orientation and gravitational forces using a combination of accelerometers, gyroscopes and sometimes magnetometers.

9dof Razor IMU

6dof IMU https://www.sparkfun.com/products/10736 https://www.sparkfun.com/products/10121

MEMS Sensors
• MICRO ELECTRO-MECHANICAL SYSTEMS
• Currently, most of the manufactured inertial measurement units are based on MEMS technology. • Regardless of easy usability, the main advantage of such devices is considerably its small size.

Next...
• What is an IMU?

• Few Examples and Videos...
• • • • • • Accelerometer Gyrometer Magnetometer Filters Euler Angles Demos

Examples…

Applications
• Used in navigation of mobile platforms and vehicles, for autopilots of aerial ships, boats or ground units, to detect collisions and in PCs for HDD security during fall. • It is also used in photo cameras for elimination of vibration effects. • Accelerometers are for instance used for collision detection, object’s orientation measurement or as user interface like in android mobile games.

Next...
• What is an IMU? • Few Examples and