Control Moment Gyroscopes

16 Control Moment Gyroscopes for Space Applications from 6 manufacturers listed on SatNow

Control Moment Gyroscopes for space applications from multiple manufacturers are listed on SATNow. Use the filters to select products based on your requirement. View product details, download datasheets, compare products, get quotes and pricing for matching products. SATNow has compiled this list of products specifically for Space and Satellite Applications.

SKU:CMG 75-75 S
Mass:
69 Kg
Momentum:
70 to 75 Nms
Torque:
75 Nm
Angular Resolution:
22 Bits
Gimbal Axis Angular Range:
Unlimited
Space Heritage:
Yes
more info
Description:Honeywell has developed an economically viable control moment gyroscope for worldwide Scientific and Commercial Markets
Mass:
28 Kg
Momentum:
25 to 75 Nms, ± 4% (Tolerance)
Torque:
75 Nm
more info
SKU:CMG12
Mass:
18 Kg
Momentum:
12 Nms
Torque:
12 Nm
Gimbal Axis Angular Range:
Unlimited
Supply Voltage:
22 to 36 V
Interface:
RS-422
more info
SKU:Microsat CMG
Satellite Type:
MicroSat
Mass:
0.6 Kg (CMG), 0.7 Kg (Control Electronics (for 4 CMGs)
Momentum:
56 mNm/s (Rated Power, per CMG), 86 mNm/s (Enhanced, per CMG )
Torque:
112 mNm (Rated Power), 172 mNm (Enhanced )
Interface:
RS-232, RS-422
more info
SKU:miniCMG
Satellite Type:
SmallSat
Momentum:
2.8 Nms
Torque:
4.4 Nm
more info
SKU:CMG 40-60 S
Satellite Type:
SmallSat
Mass:
38 Kg
Momentum:
30 to 40 Nms
Torque:
60 Nm
Angular Resolution:
22 Bits
Gimbal Axis Angular Range:
Unlimited
Supply Voltage:
22 to 37 V
Space Heritage:
Yes
Interface:
MIL-1553
more info
SKU:CMG8
Mass:
10 Kg
Momentum:
8 Nms
Torque:
8 Nm
Gimbal Axis Angular Range:
Unlimited
Supply Voltage:
22 to 36 V
Interface:
RS-422
more info
SKU:MicroCMG
Satellite Type:
SmallSat
Mass:
2.75 Kg
Momentum:
0.7 Nms
Torque:
1.1 Nm
Supply Voltage:
28 V
Interface:
RS-422, RS-485, CAN, UART
more info
SKU:CMG 15-45 S
Mass:
18.4 Kg
Momentum:
15 Nms
Torque:
45 Nm
Angular Resolution:
22 Bits
Gimbal Axis Angular Range:
Unlimited
Supply Voltage:
22 to 37 V
Space Heritage:
Yes
Interface:
MIL-1553
more info

What is a Control Moment Gyroscope?

Control Moment Gyroscope or CMG is used to control the attitude or orientation of a spacecraft. It consists of rotors (flywheel) that spin at a constant speed. Unlike reaction wheels, CMG has an initial angular momentum in it, which is controlled by the primary motor. The flywheel/rotor of a CMG will be inside a gimbal mount, free to be rotated about an axis. A secondary motor is attached to that gimbal axis and when the spacecraft needs to be re-oriented to a new attitude, the secondary motor applies torque and changes the axis of rotation of the flywheel. Therefore, as the rotor tilts, the changing angular momentum causes a gyroscopic torque that rotates the spacecraft.

CMG produces a maximum torque that is greater than that of a momentum wheel. Most spacecraft are usually equipped with four CMGs or reaction wheels based on the mission. For example, International Space Station (ISS) uses a total of four gimbal CMGs as the primary actuating device during the normal mode of operation. CMGs are preferred in cases where minimal corrections and attitude holds are required since they are more efficient and provide better attitude control compared to the reaction control system (RCS) thrusters, which work by using fuel.

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