Deepwater flexural disk transducer

Abstract

The invention provides a deepwater flexural disk transducer and belongs to the technical field of an underwater acoustic transmitting transducer. The transducer comprises structure elements such as ashell body, a piezoelectric ceramic disk, a radiation head, an acoustic reflection baffle plate and an inner shell. The flexural disk transducer provided by the invention is the underwater acoustic transmitting transducer designed through utilization of a principle of balancing inner and outer pressure based on an overflow type structure. When the transducer works, through joint flexural vibrationof the piezoelectric ceramic and a metal plate, due to the effect of the acoustic reflection baffle plate, inner cavity media and media at the outer side of the metal plate carry out in-phase vibration and energy is radiated to water. The underwater acoustic transducer is characterized by that the transducer can work in deepwater, is high in low frequency sending voltage response, light in weightand simple in preparation and can be applied to the field such as dipping sonar and underwater acoustic confrontation.

Description

technical field [0001] The invention relates to an underwater acoustic transmitter, in particular to a deep-water curved disk transducer, which can be used in the fields of hoisting sonar, sonobuoys, underwater acoustic countermeasures and the like. Background technique [0002] Sonar systems play an important role in the exploration and development of deep-sea seabed mineral resources, marine biology research, and deep-sea security, and the design of deep-sea transducers as the eyes and ears of sonar is one of the key technologies. [0003] The first thing to consider for equipment working in a deep sea environment is that the equipment can withstand high hydrostatic pressure and perform well. Therefore, in the design of underwater acoustic transducers working in deep sea environments, in addition to using materials with high compressive strength, the internal and external pressure balance compensation overflow structure is mainly used to solve the problem of pressure relea...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the deficiencies of existing curved underwater acoustic transducers, solve the problem of weak single-sided pressure resistance of curved underwater acoustic transducers, and provide a small size, light weight, and can be used in deep water conditions. The working deep water curved disk transducer, on the basis of maintaining the low-frequency emission characteristics of the curved transducer with a small volume, improves the emission response, reliability and resistance to static water of the flooded curved disk transducer pressure capacity etc.

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