SmallSat CMG
The SmallSat CMG series marks a new era and enhancement of the NanoSat CMG series, offering increased torques, specially designed for satellites over 30 kg. With the design focusing on reduced weight, volume, and power consumption, our gyroscopes deliver a performance that competes with and often surpasses advanced actuators. Our Control Moment Gyroscopes (CMG) stand out due to their variable-speed, single-gimbal configuration, granting multi-axis torque output for accurate attitude corrections. An autonomous torque calculation algorithm is embedded on the control board, enabling full control of the complex dynamics of the CMG through simple commands.
Features
High torque-to-power ratio
Compact design
Soft error and hard error fault detection
Low gitter (micro-vibration) - ISO1940 G0.4 @ 8000 rpm
Magnetic leakage flux shielded with Ni-iron Alloy
A spinning rotor (or flywheel) lies at the heart of a CMG. This rotor is kept spinning at a variable speed by a motor. The faster the rotor spins, the more angular momentum it possesses. The spinning rotor is mounted inside a gimbal frame, allowing the rotor's spin axis to tilt in different directions. By altering the orientation of the rotor's spin axis, we can change the direction of its angular momentum. When the orientation of the rotor's spin axis is changed (by tilting it using the gimbal), the spacecraft will experience a torque due to the conservation of angular momentum. This torque will induce rotation in the spacecraft.
CMG-1 x 2 (Adjacant Pair)
CMG-1 x 4 (Pyramid Cluster)
CMG-1
Specifications
SMALLSAT ADCS
The rotor is enclosed within a gimbal, depicted as the golden component in the illustration. This gimbal facilitates the rotor's spin axis (Gs) to be tilted in various orientations. When the gimbal rotates in the Gg direction, it generates gyroscopic moments (Gt) due to the change in angular momentum caused by tilting the rotor's axis. This gyro moment in Gt direction, acting perpendicular to the angular velocity vector, requires significantly less mechanical power compared to reaction-wheel-torque.
PRODUCTS
ADCS-10m
TensorADCS-10m is an integrated ADCS with a variable speed control moment gyroscope (CMG) which is suitable for satellites up to roughly 3U. This module can be installed within the tuna can or the satellite structure.
