Browse Definitions :
Definition

accelerometer

Contributor(s): Matthew Haughn

An accelerometer is a device that measures changes in gravitational acceleration in a device it may be installed in. Accelerometers are used to measure acceleration, tilt and vibration in numerous devices.

At rest, an accelerometer measures 1g: the earth’s gravitational pull, which registers 9.81 meters per second or 32.185 feet per second. Accelerometers that use the piezoelectric effect measure a small voltage change. Others  measure capactitance between two components. 

To sense motion in multiple directions, an accelerometer must be designed with multi-axis sensors or multiple linear axis sensors. Three linear accelerometers are adequate to measure movement in three dimensions.

Applications for accelerometers include:

  • Monitoring devices in biology, engineering cars, industry, volcanology and more.
  • Guidance devices in for telemetry in rocketry.
  • Image orientation in smartphones.
  • Input in smartphones, tablets and game controllers.

 

This was last updated in January 2014

Join the conversation

1 comment

Send me notifications when other members comment.

Please create a username to comment.

Can you make more sense in this because i kind of still don't understand what an accelerometer is
Cancel

SearchCompliance

  • risk assessment

    Risk assessment is the identification of hazards that could negatively impact an organization's ability to conduct business.

  • PCI DSS (Payment Card Industry Data Security Standard)

    The Payment Card Industry Data Security Standard (PCI DSS) is a widely accepted set of policies and procedures intended to ...

  • risk management

    Risk management is the process of identifying, assessing and controlling threats to an organization's capital and earnings.

SearchSecurity

SearchHealthIT

SearchDisasterRecovery

  • call tree

    A call tree is a layered hierarchical communication model that is used to notify specific individuals of an event and coordinate ...

  • Disaster Recovery as a Service (DRaaS)

    Disaster recovery as a service (DRaaS) is the replication and hosting of physical or virtual servers by a third party to provide ...

  • cloud disaster recovery (cloud DR)

    Cloud disaster recovery (cloud DR) is a combination of strategies and services intended to back up data, applications and other ...

SearchStorage

Close