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我们研究了采用偶极子接收换能器的驻波场校准系统,通过调整该系统小水箱中的驻波形式,实现局部空间内的均匀声场,从而可以用来进行声压水听器的比较法校准,并与振动液柱法校准结果相比较,从20Hz~2000Hz范围内两种方法测得的接收灵敏度偏差小于1dB。
We have studied a standing wave field calibration system using a dipole receiving transducer. By adjusting the standing wave form in the small water tank of the system, a uniform sound field in the local space can be achieved, which can be used to compare the sound pressure hydrophone Calibration, and compared with the vibration liquid column calibration results, from 20Hz ~ 2000Hz range of the two methods measured receiving sensitivity deviation less than 1dB.