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  2. Operation Gyroscope - Wikipedia

    en.wikipedia.org/wiki/Operation_Gyroscope

    Operation Gyroscope was a United States Army program implemented between 1955 and 1959. Taking place during the Cold War , this initiative modified the system of troop rotation so that entire divisions were rotated out of overseas service together, rather than individual soldiers.

  3. Gyrotheodolite - Wikipedia

    en.wikipedia.org/wiki/Gyrotheodolite

    When not in operation, the gyroscope assembly is anchored within the instrument. The electrically powered gyroscope is started while restrained and then released for operation. During operation the gyroscope is supported within the instrument assembly, typically on a thin vertical tape that constrains the gyroscope spinner axis to remain ...

  4. Gyroscope - Wikipedia

    en.wikipedia.org/wiki/Gyroscope

    After the war, the race to miniaturize gyroscopes for guided missiles and weapons navigation systems resulted in the development and manufacturing of so-called midget gyroscopes that weighed less than 3 ounces (85 g) and had a diameter of approximately 1 inch (2.5 cm). Some of these miniaturized gyroscopes could reach a speed of 24,000 ...

  5. Ring laser gyroscope - Wikipedia

    en.wikipedia.org/wiki/Ring_laser_gyroscope

    A ring laser gyroscope (RLG) consists of a ring laser having two independent counter-propagating resonant modes over the same path; the difference in phase is used to detect rotation. It operates on the principle of the Sagnac effect which shifts the nulls of the internal standing wave pattern in response to angular rotation.

  6. Fibre-optic gyroscope - Wikipedia

    en.wikipedia.org/wiki/Fibre-optic_gyroscope

    A fibre-optic gyroscope (FOG) senses changes in orientation using the Sagnac effect, thus performing the function of a mechanical gyroscope. However its principle of operation is instead based on the interference of light which has passed through a coil of optical fibre, which can be as long as 5 kilometres (3 mi).

  7. Control moment gyroscope - Wikipedia

    en.wikipedia.org/wiki/Control_moment_gyroscope

    NASA personnel handle a single Control Moment Gyroscope for the International Space Station. The ISS employs a total of four CMGs, mounted on Z1 truss [16] as primary actuating devices during normal flight mode operation. The objective of the CMG flight control system is to hold the space station at a fixed attitude relative to the surface of ...

  8. Gyroscopic autopilot - Wikipedia

    en.wikipedia.org/wiki/Gyroscopic_Autopilot

    The key feature of the gyroscopic stabilizer apparatus was that it incorporated a gyroscope to regulate the control surfaces of the aircraft. [1] Lawrence Sperry managed to design a smaller and lighter version of a gyroscope, [1] and the device was integrated into an aircraft's hydraulic control system. Using a negative feedback loop, the ...

  9. PIGA accelerometer - Wikipedia

    en.wikipedia.org/wiki/PIGA_accelerometer

    The sensing element of a PIGA is a pendulous mass, free to pivot by being mounted on a bearing. A spinning gyroscope is attached such that it would restrain the pendulum against "falling" in the direction of acceleration. The pendulous mass and its attached gyroscope are themselves mounted on a pedestal that can be rotated by an electric torque ...