Based on measuring the cross-spectrum density of soundpressure between two hydrophones, the facility for underwater sound intensity measurement is investigated and designed.
With the measurement of average soundpressure level and sound power level, the noise reduction result of the oil pan made by sandwich steel plate was proved.
通过平均声压级和声功率级的测试验证了复合钢板试制的油底壳的降噪效果。
3
Measurement and calculation of soundpressure level and sound power level.