What are the Accelerometers? Describe some applications of Accelerometers.

Accelerometers:

Accelerometers (acceleration sensors) are used to measure acceleration, vibration, and mechanical shock. Acceleration is the time rate of change of velocity with respect to a reference system. Acceleration is a vector quantity, and is closely related to velocity and displacement.

Some applications of accelerometers include the following:

1. Sport watches: When runners wear sport watches, their acceleration and speed can be determined by watches that contain accelerometers. 
2. Digital cameras: Some digital cameras contain accelerometers to determine the orientation of the photo being taken. 
3. Rockets: Accelerometers are used in rocket design to maintain the rocket’s stability. 
4. Vehicles: Accelerometers are used widely in vehicles to measure motion of the vehicle. A typical application is that accelerometers can help decide whether air bags should be deployed.

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