A multiple-frequency hydrophone calibration technique.

@article{Smith1990AMH,
  title={A multiple-frequency hydrophone calibration technique.},
  author={Roland A Smith and David R. Bacon},
  journal={The Journal of the Acoustical Society of America},
  year={1990},
  volume={87 5},
  pages={2231-43}
}
A method is described for comparing the sensitivity of two hydrophones over the frequency range 1-15 MHz. This technique forms the basis for the dissemination of national ultrasonic standards in the U.K. over this frequency range. A reference hydrophone is placed in an ultrasonic field and then the device being calibrated is substituted and the two output voltages are compared. This substitution method utilizes a broadband ultrasonic field produced by nonlinear propagation. Thus it is possible… CONTINUE READING

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