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Method for monitoring flexural vibrations of a piezoactuator

  • US 9,070,879 B2
  • Filed: 09/02/2011
  • Issued: 06/30/2015
  • Est. Priority Date: 09/03/2010
  • Status: Active Grant
First Claim
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1. A method for monitoring flexural vibrations of a piezoactuator, the method comprising:

  • providing a mounting for the piezoactuator;

    applying an AC voltage exciting longitudinal vibrations in the piezoactuator;

    measuring a small-signal spectrum of the piezoactuator when the longitudinal vibrations are excited;

    monitoring an excitation of a transverse vibration in the piezoactuator from resonances occurring in the small-signal spectrum; and

    changing the mounting of the piezoactuator in the case of an occurrence of an undesirably strong transverse vibration.

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