Introduce some common methods about noise canceling . 2 . study the working principle of the vector transducer , mainly for two - dimensional pressure - gradient transducer 分析了矢量水听器的信号模型以及工作原理,重点介绍了声压梯度矢量水听器。
Interferometric optic fiber hydrophone has the highest sensitivity among current underwater acoustic sensors , so it has a high potential of being applied in military uses 干涉型光纤水听器作为水下声场探测灵敏度极高的元件,在军事上具有巨大的潜在应用价值。
As the fiber hydrophone system is developing to large scale array , it is important to obtain enough incident light power of the fiber hydrophone system 随着光纤水听器技术的不断成熟,目前正往大规模阵列方向发展。保证足够强的入射光功率对光纤水听器系统的有效工作至关重要。
Ultrasonics - fields ; guidance for the measurement and characterization of ultrasonic fields generated by medical ultrasonic equipment using hydrophones in the frequency range 0 , 5 mhz to 15 mhz 超声场.用水听器在频率范围0 . 5mhz - 15mhz由医学超声设备产生的超声场的特性和测量指南
Flow noise elimination of this hydrophone is not revolved . the sensing sound model of the extended hydrophone is developed based on the principle of the ordinary fiber optic hydrophone 本文对这种成组光纤水听器的特性展开深入的理论和实验研究,不涉及流噪声抑制方面的讨论。
B ) crosstalks in wdm system of fiber - optic hydrophones were analyzed roundly , and the relation of isolation ratio between channels in multiplexers to crosstalks was pointed out 2 、对光纤水听器波分复用系统中串扰进行较为全面的分析,给出了波分复用器通道间隔离度与波分复用系统串扰的关系。