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  2. Accelerometer - Wikipedia

    en.wikipedia.org/wiki/Accelerometer

    For example, an accelerometer at rest on the surface of the Earth will measure an acceleration due to Earth's gravity straight upwards [3] of about g ≈ 9.81 m/s 2. By contrast, an accelerometer that is in free fall will measure zero acceleration. Accelerometers have many uses in industry, consumer products, and science.

  3. Category:Accelerometers - Wikipedia

    en.wikipedia.org/wiki/Category:Accelerometers

    PIGA accelerometer; Proof mass; T. Three-Axis Acceleration Switch This page was last edited on 22 February 2019, at 02:42 (UTC). Text is available under the ...

  4. Piezoelectric accelerometer - Wikipedia

    en.wikipedia.org/wiki/Piezoelectric_accelerometer

    A description of how a piezoelectric accelerometer works in theory. A piezoelectric accelerometer is an accelerometer that employs the piezoelectric effect of certain materials to measure dynamic changes in mechanical variables (e.g., acceleration, vibration, and mechanical shock).

  5. Geophysical survey - Wikipedia

    en.wikipedia.org/wiki/Geophysical_survey

    The gravity gradient (components of the gravity field) is measured using a spinning wheel with accelerometers also called as the gravity gradiometer. [7] The instrument is positioned in different orientations to measure the respective component of the gravitational field. The values of gravitational gradient tensors are calculated and analyzed.

  6. Acceleration - Wikipedia

    en.wikipedia.org/wiki/Acceleration

    The SI unit for acceleration is metre per second squared (m⋅s −2, ). For example, when a vehicle starts from a standstill (zero velocity, in an inertial frame of reference) and travels in a straight line at increasing speeds, it is accelerating in the direction of travel. If the vehicle turns, an acceleration occurs toward the new direction ...

  7. Principles of motion sensing - Wikipedia

    en.wikipedia.org/wiki/Principles_of_Motion_Sensing

    For example, a device with an accelerometer can detect rotation from vertical to horizontal state in a fixed location. As a result, accelerometers are primarily used for simple motion sensing applications in consumer devices such as changing the screen of a mobile device from portrait to landscape orientation.

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  9. Proper acceleration - Wikipedia

    en.wikipedia.org/wiki/Proper_acceleration

    For example, an object subjected to physical or proper acceleration a o will be seen by observers in a coordinate system undergoing constant acceleration a frame to have coordinate acceleration: =. Thus if the object is accelerating with the frame, observers fixed to the frame will see no acceleration at all.

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