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Two-Dimensional Measurement of Ultrasound Beam Patterns as a Function of Frequency

  • Paul P. K. Lee
  • Robert C. Waag
Part of the Acoustical Imaging book series (ACIM, volume 9)

Abstract

In ultrasonic imaging and tissue characterization, it is desirable to know the the pressure field of transducers. For a simple disc radiator operating in a piston mode, the field for continuous wave excitation may be calculated using diffraction theory. However, in practice, the field may be affected by transducer parameters such as backing and front surface matching. These effects are dependent on fabrication technique and sometimes difficult to control. Therefore, in order to ascertain imaging resolution or scattering volume dimensions which are determined by the beam profile, it is desirable to measure the actual pressure distribution.

Keywords

Beam Profile Beam Pattern Acoustical Holography Fresnel Approximation Transducer Axis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© Plenum Press, New York 1980

Authors and Affiliations

  • Paul P. K. Lee
    • 1
  • Robert C. Waag
    • 1
  1. 1.Departments of Radiology and Electrical EngineeringUniversity of RochesterRochesterUSA

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