accelerometer


ac·cel·er·om·e·ter

noun \ik-ˌse-lə-ˈrä-mə-tər, ak-\

Definition of ACCELEROMETER

:  an instrument for measuring acceleration or for detecting and measuring vibrations

Origin of ACCELEROMETER

International Scientific Vocabulary acceleration + -o- + -meter
First Known Use: circa 1890

ac·cel·er·om·e·ter

noun \ik-ˌsel-ə-ˈräm-ət-ər, ak-\   (Medical Dictionary)

Medical Definition of ACCELEROMETER

: an instrument for measuring acceleration or for detecting and measuring vibrations

accelerometer

noun    (Concise Encyclopedia)

Instrument that measures acceleration. Because it is difficult to measure acceleration directly, the device measures the force exerted by restraints placed on a reference mass to hold its position fixed in an accelerating body. The output is usually either a varying electrical voltage or displacement of a moving pointer over a fixed scale. Specially designed accelerometers are used in varied applications: control of industrial vibration test equipment, detection of earthquakes (seismographs), and input to navigational and inertial guidance systems.

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