How gyroscope works | Learn under 5 min | Gyroscope in a smartphone | MEMS inside gyroscope

How stuff works??? - Gyroscope
----------------------------------------------------------
In the current video we discuss the physics behind working of the a gyroscope. Gyroscope is a key component in IMU (Inertial measurement unit). IMU is widely used in space vehicles, satellites, unmanned vehicles. The most common equipment we use in our daily lives having IMU is a smartphone. Be it android or ios, many smartphones have a gyroscope built into it. So what does gyroscope measure? Well, it is used to determine the component of angular velocity in X, Y and Z planes in 3d space. Using these values of angular velocity or rotation, different apps in the smartphones can perform various tasks. When readings of gyroscope are combined with the data from accelerometer and magnetometer (the other components in IMU), the orientation of the body in 3d space can be obtained and location of the body can be determined. The video first discusses the basic principle of gyroscope measurement using a two mass system and coriolis force effects. The value of gyroscope is inferred by measuring the displacement of masses from a fixed plate. Check out the video to understand this concept better using animations. Once the basic principle about measurement of acceleration is understood, we learn about MEMS. MEMS stands for micro electro mechanical systems. These systems make it possible for gyroscope to be fabricated into small IC (Integrated Circuit). The video then explains how MEMS for gyroscope works.