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    AI Overview
    Tensor Tech CMG-10m Control Moment Gyroscope - CubeSatShop.com
    Control Moment Gyroscopes (CMGs) are high-torque, power-efficient actuators used for spacecraft attitude control by tilting rapidly spinning flywheels within gimbal mounts to generate precession torques . Unlike reaction wheels, they provide superior agility for large satellites and CubeSats, requiring at least three single-axis units for full 3D maneuvering.
    Key Aspects of Control Moment Gyroscopes
    • Operating Principle: CMGs operate on the principle of conservation of angular momentum, where a rotor spinning at a constant speed is tilted by a secondary motor, creating a gyroscopic torque that re-orients the spacecraft.
    • Efficiency and Power: They are more efficient than reaction wheels for larger platforms because they use torque to change the momentum vector's direction rather than changing the rotor's speed, making them ideal for minimizing fuel usage for attitude correction.
    • Configuration: Typically, 3 or 4 single-gimbal CMGs are arranged in a pyramid configuration to provide 3-axis control.
    • Applications:
      • Spacecraft: Used for large-scale maneuvering and stabilizing platforms like the International Space Station (ISS).
      • Small Satellites: Specifically designed, compact CMGs are used for agile maneuvers in CubeSats, such as Tensor Tech's CMG-40m .
    • Limitations: CMGs can become saturated when all momentum vectors align, necessitating desaturation through thrusters.
    Gyroscopes vs. Control Moment Gyroscopes
    While the terms are sometimes used interchangeably in casual contexts, it is important to distinguish between sensors and actuators :
    • Gyroscopic Sensors (Angular Velocity Sensors): Used for measuring orientation in drones and UAVs, often using 3-axis MEMS technology to detect pitch, roll, and yaw.
    • Control Moment Gyroscopes (Actuators): Used for changing the orientation of a vehicle.
    Types of Gyroscopic Actuators
    • Single-Gimbal CMG (SGCMG): Offers high efficiency in torque production.
    • Dual-Gimbal CMG (DGCMG): Allows for more complex maneuvering but with added complexity.
    • Reaction Wheels: Change speed to create torque, commonly used in smaller, less demanding, or cost-constrained missions.
    • Control Moment Gyroscopes - SatNow
      What is a Control Moment Gyroscope? Control Moment Gyroscope or CMG is used to control the attitude or orientation of a spacecraft...
      SatNow
    • Control moment gyroscopes | satsearch blog
      Jan 10, 2024 — Single-gimbal control moment gyroscopes – these are usually considered the most efficient setup. In such systems torque is produce...
      satsearch blog
    • ISS Attitude Control - Torque Equilibrium Attitude and Control ...
      Sep 6, 2019 — and control officer teas aren't always used sometimes the space station needs to be rotated into a different orientation. such as ...
      YouTube · Simply Space
      4m
    Show all
    • Control Moment Gyroscopes - SatNow
      What is a Control Moment Gyroscope? Control Moment Gyroscope or CMG is used to control the attitude or orientation of a spacecraft...
      SatNow
    • Control moment gyroscopes | satsearch blog
      Jan 10, 2024 — Single-gimbal control moment gyroscopes – these are usually considered the most efficient setup. In such systems torque is produce...
      satsearch blog
    • ISS Attitude Control - Torque Equilibrium Attitude and Control ...
      Sep 6, 2019 — and control officer teas aren't always used sometimes the space station needs to be rotated into a different orientation. such as ...
      YouTube · Simply Space
      4m
    • Tensor Tech CMG-40m Control Moment Gyroscope
      CMG-40m has four variable-speed, single-gimbal Control Moment Gyroscope (CMG) which is suitable for 12U and 16U CubeSats. Unlike t...
      CubeSatShop.com
    • What Is a Control Moment Gyroscope (CMG)? - Tensor Tech
      May 29, 2025 — Why Satellites Need Better Attitude Control. As small satellites missions demand faster, more agile response times, traditional at...
      Tensor Tech
    • Control Moment Gyroscopes for Spacecraft Attitude Control Systems
      A distinctive feature of control moment gyroscopes (CMG) is the presence of special drives that control the rotation of the gyrosc...
      Harvard University
    • Tensor Tech CMG-10m Control Moment Gyroscope
      Description * Offering improved torque at lower power consumption versus reaction wheels. * Cost effective solution with high perf...
      CubeSatShop.com
    • Satellite Attitude Control with a six-Control Moment Gyro ... - ISSFD
      CMG cluster configuration chosen Two main cluster configurations exist: pyramidal or multiple. The last one consists in having the...
      ISSFD
    • Control Moment Gyroscopes for Spacecraft Attitude Control Systems: History of Development | Gyroscopy and Navigation
      Jun 16, 2022 — Control moment gyroscopes (CMGs) are inertial actuators that are used for active triaxial attitude control of spacecraft. CMGs are...
      Springer Nature Link
    • Gyroscopes for Drone / UAV | MEMS Gyro Manufacturers & Suppliers
      Jan 7, 2026 — Three gyroscopes mounted at right angles to each other can sense angular velocity on all three axes – yaw, pitch and roll. These t...
      Unmanned Systems Technology
    • What Is a Control Moment Gyroscope (CMG)? A Powerful Solution for Satellite Attitude Control
      May 29, 2025 — 2. Dual-Gimbal CMGs (DGCMG) Adds a second gimbal axis, allowing more flexible torque vectoring and expanded maneuverability. Howev...
      Tensor Tech
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    Control moment gyroscope


    Wikipedia
    https://en.wikipedia.org › wiki › Control_moment_gyro...
    Wikipedia
    https://en.wikipedia.org › wiki › Control_moment_gyro...
    A control moment gyroscope (CMG) is an attitude control device generally used in spacecraft attitude control systems. Read more
    Videos
    Control Moment Gyroscopes & Falling Cats: Attitude Control
    YouTube · Dr. Shane Ross
    Nov 29, 2021
    YouTube · Dr. Shane Ross
    7:44
    Control moment gyroscopes work like a falling cat, twisting its body to reorient itself, controlling attitude for small changes.
    Dr. Shane Ross
    YouTube ·
    Nov 29, 2021

    Control Moment Gyroscopes & Falling Cats: Attitude Control

    YouTube · Dr. Shane Ross · Nov 29, 2021
    YouTube
    In this video
    • 00:00
      Space station attitude stability continued
    • 00:19
      Control moment gyroscope
    • 00:43
      Falling cat physics
    • 01:44
      Spinning bicycle wheel demonstration
    • 04:13
      Same principle behind control moment gyroscopes on spacecraft
    • 06:08
      Human attitude control in space
    ISS Attitude Control - Torque Equilibrium Attitude and Control ...
    YouTube · Simply Space
    Sep 6, 2019
    YouTube · Simply Space
    9:09
    ISS attitude control uses 4 control moment gyroscopes (CMGs) and RCS thrusters to maintain orientation against external torques.
    Simply Space
    YouTube ·
    Sep 6, 2019

    ISS Attitude Control - Torque Equilibrium Attitude and Control ...

    YouTube · Simply Space · Sep 6, 2019
    YouTube
    In this video
    • 00:04
      Reference Frames
    • 00:33
      Satellite reference frame
    • 00:59
      LVH reference frame
    • 01:56
      Air resistance
    • 03:01
      Gravity Gradient Torque
    • 05:02
      Reaction Wheels
    • 05:40
      Reaction Wheel Saturation
    • 07:16
      Angular momentum conservation
    • 07:26
      CMG saturation
    • 08:22
      Conclusion
    Gyroscopic System - Flight Instruments
    YouTube · Aviation Theory
    Jun 13, 2021
    YouTube · Aviation Theory
    10:17
    A gyroscope is a symmetrical body rotating at a speed sufficient to experience gyroscopic effects like rigidity in space and precession.
    Aviation Theory
    YouTube ·
    Jun 13, 2021

    Gyroscopic System - Flight Instruments

    YouTube · Aviation Theory · Jun 13, 2021
    YouTube
    In this video
    • 00:38
      Gyroscopic System
    • 00:52
      What is a gyroscope
    • 02:48
      Rotational Speed & Moment of Inertia
    • 04:06
      Bicycle analogy
    • 05:05
      Precession Example
    • 05:49
      Magnitude of Precession
    • 06:44
      Free (Space) Gyro
    • 07:35
      Earth Gyro
    • 08:51
      Drive Systems
    • 09:54
      Conclusion
    Feedback

    View all

    Control moment gyroscopes | satsearch blog


    satsearch blog
    https://blog.satsearch.co › 2024-01-10-control-moment...
    satsearch blog
    https://blog.satsearch.co › 2024-01-10-control-moment...
    Jan 10, 2024 — Control moment gyroscopes (CMGs) are attitude control units made up of a spinning rotor, or flywheel, and motorized gimbals which can tilt the rotor's angular ... Read more

    What Is a Control Moment Gyroscope (CMG)?


    Tensor Tech
    https://tensortech.co › blog
    Tensor Tech
    https://tensortech.co › blog
    May 29, 2025 — A Control Moment Gyroscope (CMG) is an actuator used in satellite Attitude Determination and Control Systems (ADCS) to generate precise rotational torque ... Read more

    19.1 Attitude Determination and Control Systems


    NASA (.gov)
    https://ntrs.nasa.gov › api › citations › downloads
    NASA (.gov)
    https://ntrs.nasa.gov › api › citations › downloads
    PDF
    by SR Starin · 2011 · Cited by 55 — The control torques about the axes of three- axis systems come from combinations of momentum wheels, reaction wheels, control moment gyros , thrusters, solar or ... Read more
    33 pages

    Low-cost Attitude-control 2 axis MEMS Gyro


    Ericco Inertial Technology
    https://www.ericcointernational.com › gyroscope › low-...
    Ericco Inertial Technology
    https://www.ericcointernational.com › gyroscope › low-...
    The biggest function of the 2- axis gyroscope is to “measure the angular velocity to judge the motion state of the object, so it is also called a motion sensor”. Read more
    5.0 (820)

    Operating Principles of Gyroscope Sensors in Attitude ...


    ALLPCB
    https://www.allpcb.com › ... › Sensors & MEMS
    ALLPCB
    https://www.allpcb.com › ... › Sensors & MEMS
    Aug 27, 2025 — By detecting angular motion around one or more axes, gyroscopes enable precise tracking of orientation and movement . This article explores the ... Read more

    Control Moment Gyroscopes for Spacecraft Attitude ...


    Harvard University
    https://ui.adsabs.harvard.edu › abs › abstract
    Harvard University
    https://ui.adsabs.harvard.edu › abs › abstract
    by AV Sorokin · 2022 · Cited by 10 — The article is devoted to the development and application of control moment gyroscopes used for active triaxial attitude control of spacecraft.

    Design of a Control Moment Gyroscope Attitude Actuation ...


    Air Force Institute of Technology
    https://scholar.afit.edu › etd › article › viewcontent
    Air Force Institute of Technology
    https://scholar.afit.edu › etd › article › viewcontent
    PDF
    Mar 21, 2013 — Three- axis control using CMGs is achieved by arranging multiple CMGs in an array. There are several fac- tors which must be considered when ... Read more
    127 pages

    Two and Three Axis Gyroscopes (TAG)


    Inertial Labs
    https://inertiallabs.com › IMU
    Inertial Labs
    https://inertiallabs.com › IMU
    Our two and three axis gyroscope sensors range has been developed for internal stabilization and pointing applications. Explore our 2 and 3 axis gyroscopes ...
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    Scholarly articles for axis gyroscopes for attitude control systems

    … gyroscopes for spacecraft attitude control systems : … - ‎ Sorokin - Cited by 10
    … spacecraft with two parallel control moment gyroscopes - ‎ Gui - Cited by 21
    Attitude control for small satellites using control … - ‎ Lappas - Cited by 172
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