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Piezoelectric actuator or motor, method therefor and method for fabrication thereof

  • US 6,184,609 B1
  • Filed: 09/16/1998
  • Issued: 02/06/2001
  • Est. Priority Date: 03/26/1996
  • Status: Expired due to Term
First Claim
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1. An actuator or motor having electromechanical material which alters its shape under the influence of an electric field, whereby motion relative a body is created by non-resonant repetition of small steps, said actuator or motor comprising at least one monolithic module with electrodes integrated in said electromechanical material, said monolithic module being a sintered block and having at least one passive part and at least two active elements, one independent contact point at each active element being provided against said body, which contact points are positionable independently of each other in at least two independent directions relative to said passive part of said monolithic module, whereby said monolithic module by itself or in combination with others is used for creating said motion.

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