Lightning conductor with piezoelectric device for starting the corona effect
AssigneeCommissariat a l'Energie Atomique
InventorsAndre Robert, Michel Roubinet, Jacques Baumann
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Abstract
Lightning conductor with a piezoelectric device for starting the corona effect. A lightning conductor pole rests on a support fixed by means of a ball. Under the action of the wind, the pole moves out of the vertical position until a shoulder abuts against a flange of the support. With the wind continuing to act on the pole, the latter exerts a considerable force on the support and the reaction force or torque is transmitted to the piezoelectric device by means of the ball.
Claims14
A lightning conductor comprising a substantially vertical pole, an intercepting point located in the upper part of the pole and electrically connected to the ground, at least one electrode in the vicinity of the intercepting point, at least one piezoelectric crystal electrically connected to said electrode and means for compressing the piezoelectric crystal, wherein the compressing means comprise a fixed support on which the pole is mounted so as to be able to pivot about at least one horizontal axis, a bearing member by means of which the pole rests on the support, said bearing member exerting a reaction force at least in certain pole positions and means for transmitting said reaction force to the crystal, the lightning conductor also having means for limiting the pivoting movement of the pole.
Dependencies are inferred from the claim text.