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Object

accelerometer

A metallic accelerometer with the label "A30 ID17" and a circular sensor is shown against a dark background.

An accelerometer is an electromechanical device that measures proper acceleration—the rate of change of velocity relative to a free-falling frame of reference. In inertial navigation systems, accelerometers detect linear forces along specific axes. Onboard computers integrate these continuous measurements over time to determine exact changes in velocity and position.

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