Reducing uncertainties for spatial averaging at high frequencies

@article{Sinden2017ReducingUF,
  title={Reducing uncertainties for spatial averaging at high frequencies},
  author={David Sinden and Srinath Rajagopal and N. Christopher Chaggares and Guofeng Pang and Oleg Ivanytskyy},
  journal={2017 IEEE International Ultrasonics Symposium (IUS)},
  year={2017},
  pages={1-4}
}
Accurate characterization of ultrasound fields generated by diagnostic and therapeutic transducers is critical for patient safety. At high frequencies, spatial variations in the pressure over the surface of the measurement device will produce a different averaged value from that at the intended location. Using a small hydrophone as an idealised point device, this paper seeks to ascertain the spatial-averaging errors for a finite-area reference device along the beam axis in order to find the… CONTINUE READING

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References

Publications referenced by this paper.
SHOWING 1-10 OF 10 REFERENCES

The Practicalities of Obtaining and Using Hydrophone Calibration Data to Derive Pressure Waveforms

  • IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
  • 2017
VIEW 1 EXCERPT

Design of a 30μm aperture membrane hydrophone for the measurement and characterization of high frequency ultrasound

N. C. Chaggares, O. Ivanytskyy, G. Pang
  • Ultrasonics Symposium (IUS), 2016 IEEE International. IEEE, 2016, pp. 1–6.
  • 2016
VIEW 1 EXCERPT

Time-delay spectrometry measurement of magnitude and phase of hydrophone response

  • IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
  • 2011
VIEW 1 EXCERPT

A multiple-frequency hydrophone calibration technique.

  • The Journal of the Acoustical Society of America
  • 1990
VIEW 1 EXCERPT