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accelerometer

Device that measures proper acceleration

EntityQ192940

Also known as acceleration sensor · g-sensor · gravity sensor

Subclass of: measuring instrument

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

An accelerometer is a device that measures the proper acceleration of an object. Proper acceleration is the acceleration of the object relative to an observer who is in free fall. Proper acceleration is different from coordinate acceleration, which is acceleration with respect to a given coordinate system, which may or may not be accelerating. For example, an accelerometer at rest on the surface of the Earth will measure an acceleration due to Earth's gravity straight upwards of about g ≈ 9.81 m/s2. By contrast, an accelerometer that is in free fall will measure zero acceleration.

Overview

All data

26 statements · 15% with external sources · numbers in brackets are citations

Measures: acceleration

On other databases

23 identifiers linking accelerometer across the web's reference databases

Data quality

statements

15%

externally sourced

Source last edited September 8, 2026. AIDB refreshes this page daily.

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AIDB. (2026). accelerometer (Q192940). Retrieved from https://aidb.si/e/accelerometer-Q192940