FULLY INTEGRATED 70 MM Reaction wheel with 200 mNms - for micro satellites up to 25 kg (PREVIOUSLY REWL-70)
ǀ FLIGHT HERITAGE: 2022 Q2 ǀ EM PRICE: €15,300 ǀ FM PRICE: €18,000 ǀ
Fully integrated reaction wheel unit for high performance satellite attitude control for Micro and Nano-satellite missions with mission lifetime up to 5 years (minimum).
The WHL-200 wheel is an integrated 3-phase outrunner permanent magnet synchronous motor (PMSM) with fully integrated motor control electronics and software. Material for the body is Al-7075-T6, and the rotor is made of ferritic stainless steel while the magnets are Neodymium. The rotor is axially suspended between two hybrid ceramic high precision bearings chosen for long life and low friction in vacuum conditions. The wheel is commutated by its own internal microcontroller, which runs the control loop to control speed and acceleration upon commands from the ADCS computer.
Each wheel has a CAN bus interface with CSP making them accessible to the satellite communication bus. The wheels are fitted with basic telemetry sensors: Temperature, current, speed.
Our recommendation for complete 3 axis control is to use a momentum wheel assembly, which uses four powerful WHL-200 reaction wheels that are integrated into the classic tetrahedron configuration for the benefit of both redundancy and elimination of zero crossing the wheel speeds.
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