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Electronic stethoscope measurement system and method

  • US 20040105556A1
  • Filed: 11/18/2003
  • Published: 06/03/2004
  • Est. Priority Date: 11/18/2002
  • Status: Active Grant
First Claim
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1. A method for characterizing the response of an electronic stethoscope, comprising the steps of:

  • a) holding the sensor of the electronic stethoscope in contact with a test surface of a phantom;

    b) inducing internal vibrations in the phantom;

    c) measuring surface motion of the test surface of the phantom using a surface accelerometer coupled to the test surface;

    d) detecting vibrations from the phantom and generating an electric signal based on the detected vibrations with the electronic stethoscope; and

    e) calculating a surface transfer function based on the surface motion measured in step (c) and the electric signal generated in step (d) to characterize the response of the electronic stethoscope.

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