Gyroscope meaning

jīrə-skōp
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A device consisting of a spinning mass, typically a disk or wheel, mounted on a base so that its axis can turn freely in one or more directions and thereby maintain its orientation regardless of any movement of the base.
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A wheel mounted in a set of rings so that its axis of rotation is free to turn in any direction: when the wheel is spun rapidly, it will keep the original direction of its rotation axis no matter which way the ring is turned: gyroscopes are used in gyrocompasses and to keep moving ships, airplanes, etc. level.
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An instrument consisting of a heavy disk or wheel spun rapidly about an axis like a top. The angular momentum of the disk causes it to resist changes in the direction of its axis of rotation, due to the principle of conservation of angular momentum. Because of the gyroscope's tendency to remain oriented in one direction, it is used as a stabilizing device in missiles, as well as in the navigation and piloting systems of airplanes, ships, rockets, and other vehicles.
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A device used to maintain orientation with the earth. It is used in airplane and vehicle navigation systems as well as game controls such as the Wii from Nintendo. Smartphone and tablet gyroscopes detect changes in orientation from portrait to landscape.A gyroscope contains three different-size rotating rings (gimbals) connected to each other at two points with the smaller, inner ring rotating around a spinning disc. While the speed of the spinning disc maintains its direction, the rings are free to move on their axes, and their movements are measured. For miniature solid state gyroscopes, see Coriolis vibrating gyroscope.Gyroscope vs. AccelerometerA gyroscope is used to establish the relationship of the device to the earth, whereas an "accelerometer" is used to measure the change of velocity in any direction. See accelerometer.
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An apparatus composed of a wheel which spins inside of a frame (gimbal) and causes the balancing of the frame in any direction or position. In the form of a gyroscopic stabilizer, used to help keep aircraft and ships steady.
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Origin of gyroscope

  • gyro- +‎ -scope, from French coined in 1856 by physicist Leon Foucault, from Ancient Greek γῦρος (guros, “circle”) and σκοπός (skopos, “watcher”).

    From Wiktionary