Acoustic performance measurement method of underwater transmitting acoustic transducer under high hydrostatic pressure

Abstract

The invention relates to the field of underwater acoustic transducer measurement and in particular belongs to the range of acoustic parameter measurement of an underwater acoustic transducer under thehigh hydrostatic pressure so that an accurate measurement realization problem of the acoustic parameters of an underwater acoustic transducer under the high hydrostatic pressure can be solved. In order to overcome defects in measurement using the hydrophone, the invention puts forward an acoustic performance measurement method of an underwater transmitting acoustic transducer under a high hydrostatic pressure. According to the method provided by the invention, in a light-transmitting pressure water tank, measurement is carried out by using an optical method to obtain a particle vibration velocity value of a specific position in a far field of a radiation sound field of the transducer; calculation is carried out to obtain a sound pressure measurement value at the position; and then acoustic parameters like a sending voltage response level and an acoustic source level of the underwater acoustic transducer under the high hydrostatic pressure are obtained. With the method provided by theinvention, no standard hydrophone or measurement hydrophone is needed; and because the method is a non-contact measurement method, no disturbance is caused on the sound field.

Description

technical field [0001] The invention relates to the field of underwater acoustic transducer measurement, in particular to the category of acoustic parameter measurement of an underwater acoustic transducer under high hydrostatic pressure, and mainly relates to a method for measuring the acoustic performance of an underwater acoustic emission transducer under high hydrostatic pressure. Background technique [0002] With the continuous development of the marine industry, the development of deep water resources has been put on the agenda, and various deep-water marine survey instruments are indispensable equipment for deep-sea development, such as unmanned detection equipment working in deep water conditions, underwater acoustic detection network and carrier Human submersible, etc. These underwater acoustic devices that work in deep water require deep water transducers that can work in the deep sea. In order for these devices to work normally in the deep sea, the performance of...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of accurate measurement of acoustic parameters of underwater acoustic emission transducers under high hydrostatic pressure, overcome the shortcomings of using hydrophones for measurement, and provide a method for measuring the acoustic performance of underwater acoustic emission transducers under high hydrostatic pressure

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