Thales

Yasmina Gafari

Yannick Baudasse

Stéphane Vezain

Stephane Vezain

In precision mechanical actuators, wherein a high precision stepping motor can notably be used in the actuating mechanisms of artificial satellites, a stepping motor comprises two rotors that rotate in opposite directions to generate a low-amplitude movement between one of the rotors and a stator. The first rotor comprises a first set of teeth distributed at a first pitch pand a second set of teeth distributed at a second pitch p. The stator comprises N stator contacts comprising a plurality a of teeth distributed at the pitch p, distributed at a third pitch equal to p(a+/N), and able to cooperate with the teeth of the first set. The second rotor comprises N rotor contacts comprising a plurality b of teeth distributed at the pitch p, distributed at a fourth pitch equal to p(b+/N), and able to cooperate with the teeth of the second set of the first rotor.

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Cannes la Bocca, France

Yasmina Gafari