A HYDROPHONE CALIBRATION SYSTEM FOR LOW FREQUENCIES AND HIGH STATIC PRESSURES

摘要

A system that has been developed for making both absolute and comparison calibration measurments on pressure-sensitive hydrophones in the lcw sonic and infrasonic frequency ranges (0.3 to 500 cps) at various static pressures up to 1000 psig is described. The theory of some bounded medium calibrations and some of the ways in which practical systems depart from the ideal are discussed.