Reaction Wheels 40

Company : Comat

Reaction Wheels 40

The lastest Reaction Wheel generation, plug-&-play, radiation proof, with a long life time, safeguarded electronics, and a very compact design.

  • Detumbling
  • Attitude control
  • Torque or angular rate control

Main benefits:

  • Excellent reliability
  • Low sensitivity to temperature variation: optimised consumption and life time
  • Very low microvibration level
  • Optimised size to fit 3 RW in 1 U, for a ready-to-plug flight-set
  • Enables a satellite of 20 kg to rotate of 10° in 10 s

Other COMAT products and services

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Key Features

  • Torque: 4 mNm mean
  • Kinetic moment: 40 mN.ms | 60 mN.ms peak
  • Accuracy: down to 1 rpm
  • Mechanical interface:
    • Size: 1 RW = Ø 65 x 40.5 mm, ie 3 RW ⊂ 1 U (10 x 10 x 10 cm³)
    • Mass: 1 RW = 260 g (electronic and radiation protection included)
  • Power consumption:
    • @15 mNms: 0.07 W
    • @30 mNms: 0.3 W
    • @40 mNms: 0.5 W
  • Supply Voltage: 14 V [12 V; 16 V]
  • Data Interface: RS 485
  • Life time: more than 32,000 zero crossing tests
  • Thermal environment: -25 °C / +45 °C
  • Mechanical environment:
    • QSL: 30 g
    • Random: 33 grms
    • Shock: 2000 g/2000 Hz
  • Radiation: <10 Krad
  • Protocol: NSP communication Protocol
  • Acceptance tests: µvib | Vibration | Thermal cycling | Performance

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