How a smartphone’s accelerometer works

In this video by Bill Hammock he explains how the accelerometer in a mobile phone works, and what’s inside such sensors today. He takes a smartphone and his accelerometer apart and explains with the help of simple sketches how the gravity measurement works in detail. Bill also explains the concept underlying the MEMS production (Microelectromechanical systems) of these sensors. This video is based on a chapter from the EngineerGuy team’s latest book Eight Amazing Engineering Stories.