Definition of "accelerometers" []

• Plural form of accelerometer. (noun)

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• "Moving the iPhone or iPod Touch, which have built-in accelerometers, directs the toy helicopterforward and backward andturning and other directions."
• "Current microelectromechanical systems – used in accelerometers, car air-bag triggers, and optical switches that transfer light from one fiber to another – have moving parts separated by about one micrometer."
• "Steven M. Scharf, director of the University of Maryland's Sleep Disorders Center in Baltimore, says that the products are based on motion-sensitive devices called accelerometers - less-sophisticated versions of the technology he uses to track patients' sleep."