WORLD’S SMALLEST OPTICAL GYROSCOPE

About:

• Optical gyroscope is a device that helps vehicles, drones and handheld electronic devices know their orientation in 3D space.
  
  
• Originally, gyroscopes were sets of nested wheels, each spinning on a different axis.
  
  
• However, today’s cellphones have microelectromechanical sensor, which measures changes in the forces acting on two identical masses that are oscillating and moving in opposite directions.
  
  
• These MEMS gyroscopes are limited in their sensitivity, so optical gyroscopes have been developed to perform the same function but with no moving parts and a greater degree of accuracy using a phenomenon called the Sagnac effect.