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SUBJECT INFORMATION ACQUISITION APPARATUS

  • US 20170215847A1
  • Filed: 04/18/2017
  • Published: 08/03/2017
  • Est. Priority Date: 04/08/2011
  • Status: Active Grant
First Claim
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1. A subject information acquisition apparatus for transmitting an elastic wave to a subject, receiving the elastic wave reflected from inside the subject, and acquiring information inside the subject, the subject information acquisition apparatus comprising:

  • a conversion device configured to receive the elastic wave and convert the elastic wave into an electrical signal;

    a reference layer which is provided between the conversion device and the subject and whose viscosity coefficient and elastic modulus are known;

    a measuring unit configured to measure strain of the subject and strain of the reference layer which are generated when a pressure is applied to the subject and the reference layer by using the electrical signal; and

    a calculation unit configured to calculate a viscosity coefficient (η

    ) of the subject by using a viscosity coefficient and an elastic modulus of the reference layer, the strain of the subject, and the strain of the reference layer.

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