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Capacitive micromachined ultrasonic transducers

  • US 6,443,901 B1
  • Filed: 06/15/2000
  • Issued: 09/03/2002
  • Est. Priority Date: 06/15/2000
  • Status: Expired due to Fees
First Claim
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1. A method for transmitting an acoustic signal from a micromachined ultrasonic transducer cell which is biased by a bias potential comprising:

  • determining a nonlinear relationship between motion of said cell and applied potential;

    developing a drive signal characteristic which takes into account said nonlinear relationship; and

    transmitting an acoustic signal by applying said drive signal characteristic to said cell.

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