MEMS Gyro (Microelectromechanical Systems Gyro) is a type of sensor that uses microelectromechanical systems (MEMS) technology to measure the angular velocity of an object. It consists of a small mechanical structure that is suspended on a microchip and is sensitive to angular motion. As the object rotates, the mechanical structure is displaced due to the Coriolis force, and this displacement is then converted into an electrical signal that can be used to calculate the angular velocity. MEMS gyros are small, lightweight, and low-cost, making them a popular choice for applications such as smartphone navigation, virtual reality, and robotics. However, they are not as accurate or stable as some other types of gyros, such as fiber optic gyros.