Scientists have developed the world’s smallest optical gyroscope. The new gyroscope, described in Nature Photonics, is 500 times smaller than the current best device.
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.
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