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Vibration testing apparatus and method using acoustical waves

  • US 6,668,650 B1
  • Filed: 12/19/2001
  • Issued: 12/30/2003
  • Est. Priority Date: 06/28/1999
  • Status: Expired due to Fees
First Claim
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1. A vibration testing apparatus comprising:

  • a main enclosure defining a main acoustical cavity and having a baffle provided with at least one main opening;

    an acoustical source having at least one acoustical transducer being acoustically coupled to said main acoustical cavity to generate low frequency acoustical waves toward said opening;

    wherein said apparatus receives an article to be tested in a position where said main opening is substantially closed by the article to expose a surface thereof to said acoustical wave while attenuating the portion of the acoustical waves reaching a substantially opposed surface of said article which is not directly exposed to the acoustical waves.

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