Investigation of a system for underwater sound intensity measurement,their calibration and analysis of measuring error

Based on measuring the cross-spectrum density of sound pressure between two hydrophones,the facility for underwater sound intensity measurement is investigated and designed.According to the principle of two-hydrophone method for intensity measurement,the error analysis is done.Given the method of sound intensity measurement calibration for this underwater sound intensity measurement;facility,the uncertainty of intensity measurement by this facility is estimated,It is shown that the analysis and evaluation are agreeable to the experimental results