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Hydrostatic pressure compensation device and its working parameter calculation method

A compensation device and hydrostatic pressure technology, applied to transducers, planar diaphragms, microphones, etc. used underwater, can solve the problems of large influence on transducer performance and complex structure, and achieve low manufacturing and maintenance costs , high compensation accuracy, and high reliability

Active Publication Date: 2022-07-26
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The present invention aims at the problem that the structure of the existing hydrostatic pressure compensation device used for the electroacoustic transducer is complex and has great influence on the working performance of the transducer, and provides a passive simple hydrostatic pressure compensation device and its working parameter calculation method

Method used

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  • Hydrostatic pressure compensation device and its working parameter calculation method
  • Hydrostatic pressure compensation device and its working parameter calculation method
  • Hydrostatic pressure compensation device and its working parameter calculation method

Examples

Experimental program
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Embodiment 1

[0058] The present application provides a hydrostatic pressure compensation device for an electro-acoustic transducer under water, which can achieve a high working water depth of the transducer without a complex pressure control system, and is convenient and quick to install, low in maintenance cost, and has high reliability. performance, high compensation speed and high compensation accuracy.

[0059] like Figure 1-8 Shown, a passive simple hydrostatic pressure compensation device. The hydrostatic pressure compensation device includes a casing structure, an elastic diaphragm 3 fixed in the casing structure, the elastic diaphragm 3 is a water-tight diaphragm, and the casing structure is used for fixed connection with the electro-acoustic transducer 20 . The casing structure encloses a first cavity, and the elastic diaphragm 3 divides the first cavity into a first cavity and a second cavity that are not connected to each other.

[0060] The electro-acoustic transducer 20 is ...

Embodiment 2

[0087] like Figure 9 As shown, the difference between the second embodiment and the first embodiment is that the three-way interface 4 is not provided in this embodiment. The electro-acoustic transducer 20 is provided with a vent 202, a communication pipe 6 is provided between the electro-acoustic transducer 20 and the casing structure, and the openings at both ends of the communication pipe 6 are respectively connected with the vent 202 and the first and second ends. A through hole 101 is correspondingly connected. The communication pipe 6 can be connected to the first through hole 101 through the threaded interface 7 .

Embodiment 3

[0089] The difference between Embodiment 3 and Embodiment 1 is that, in addition to the first through hole 101, an inflation port is provided on the first housing 1, and the inflation port is connected to the port on one side of the valve, and the port on the other side of the valve is connected to an external inflation device 30 connections. That is, the filling gas first enters the first cavity through the filling port, and then enters the inner cavity of the electro-acoustic transducer through the first through hole 101 .

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Abstract

The invention provides a hydrostatic pressure compensation device and a method for calculating working parameters thereof. The hydrostatic pressure compensation device is used for an electro-acoustic transducer, and comprises a shell structure and an elastic diaphragm, and the shell structure is used for fixed connection with the electro-acoustic transducer; The shell structure encloses a first cavity, and the elastic diaphragm divides the first cavity into a first cavity and a second cavity that are not connected to each other; the shell structure facing the first cavity is provided with a first through hole, The first through hole is used to communicate with the inner cavity of the electro-acoustic transducer; the shell structure facing the second cavity is provided with a second through hole; the electro-acoustic transducer and / or the shell structure facing the first cavity The upper part is provided with an inflatable port, the inflatable port is connected with the port on one side of the valve, and the port on the other side of the valve is used for connecting with an external inflatable device. The application does not require a precise pressure control system to achieve a higher working water depth of the transducer, is convenient and quick to install, has low manufacturing and maintenance costs, and has high reliability, high compensation speed and high compensation accuracy.

Description

technical field [0001] The invention relates to a passive simple hydrostatic pressure compensation device for an electro-acoustic transducer and a method for calculating its working parameters. Background technique [0002] There are extremely rich resources in the ocean, and the full development of marine resources depends on effective survey methods. Compared with light waves and radio waves, the energy attenuation of sound waves in water is small (its attenuation rate is one thousandth of that of electromagnetic waves), and the lower the frequency of sound waves, the longer the propagation distance in water, so low-frequency electro-acoustic conversion. Energy devices have been widely used in marine research, deep-sea resource exploration, hydroacoustic tomography and other fields. [0003] As the working water depth increases, the hydrostatic pressure on the external mechanical structure of electroacoustic transducers (such as piezoelectric, magnetostrictive, electromag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R1/44H04R1/02H04R7/04H04R7/16
CPCH04R1/44H04R1/02H04R7/16H04R7/04H04R2201/02H04R2307/025
Inventor 杨鑫陈泽坤汪柏松杨明智罗安
Owner HUNAN UNIV