Calibration, Measurement, and Voltage Output of Velocity Hydrophones

摘要

This report discusses how to calibrate velocity hydrophones using a standard pressure hydrophone and investigates the relative contributions by the pressure and particle velocity to the measured sensitivity of such hydrophones. Sections 2 and 3 deal with the issues associated with velocity hydrophone calibration using a standard pressure hydrophone and the required correction factor for sensitivity calibration in a spherical wavefront. Section 4 summarizes the particle velocity's voltage contribution to the measured sensitivity of the hydrophone in a spherical wavefront. An example is presented in section 5 to illustrate the particle velocity's voltage contribution.