Underwater vibration wave outputting and receiving device with low loss and high fidelity

Abstract

The invention provides an underwater vibration wave outputting and receiving device with low loss and high fidelity, which comprises a soft air bag, a vibration body and an audio conversion unit, and is characterized in that the rigidity of the soft air bag is less than the rigidity of the vibration body, so that the soft air bag is enabled to be deformed in preference to the vibration body under the action of environmental pressure; the soft air bag and the vibration body are in closed connection so as to form a closed air space, the audio conversion unit is arranged in the closed air space in a mode that the audio conversion unit can receive vibration of the vibration body and convert the vibration into other signals so as to be outputted outside the closed air space and / or the audio conversion unit can convert received other signals from the outside of the closed air space into signals capable of driving the vibration body to vibrate; and the soft air bag is compressed in different degrees under the action of underwater pressure intensities of different water depths, so that the pressure intensity inside the closed air space is enabled to always keep consistent with the external water pressure. The underwater vibration wave outputting and receiving device provided by the invention completely avoids the outputting and receiving intensity loss of underwater vibration waves and a distortion phenomenon of vibration waves with different frequencies.

Description

technical field [0001] The invention belongs to the field of machinery, specifically, the invention is applicable to the technical field of output and reception of underwater vibration waves from ultra-low frequency to ultra-high frequency. Background technique [0002] When working in an underwater environment or for leisure / sports, based on the needs of mutual communication, safety and detection, various sonar or underwater headset devices will be required. [0003] With the rapid increase of human needs and interests in underwater (especially ocean) activities, underwater sonar and environmental sound detection, voice communication, music appreciation and other fields (civilian, military such as frogman and underwater UAV detection) It has a broad market prospect and strong economic and security benefits. [0004] In the prior art, in order to resist underwater pressure and waterproof needs, underwater sonar or underwater earphones usually have the following two types: 1...

AI Technical Summary

Problems solved by technology

The first rigid shell wrapping technology, due to the influence of the rigid shell, when the vibration wave is output or received, the intensity of the vibration wave at different frequencies will be distorted to varying degrees, and there will be a large degree of strength loss; the second soft film Wrapping technology, under the condition of underwater pressure, the waterproof film will compress the vibrating body of the device and produce the same effect; the above two technical products will also produce vibration waves of the same frequency as the underwater depth (pressure) changes output and receive strength changes, causing further distortion

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