Double-liquid-cavity broadband transducer for deep water
A technology of transducer and liquid cavity, which is applied to transducers used underwater, piezoelectric/electrostrictive transducers, piezoelectric/electrostrictive transducers resonant transducers, etc. It is difficult to take into account the performance indicators of the energy device and other problems, so as to achieve the effect of high electro-acoustic conversion efficiency, light weight and small size.
Pending Publication Date: 2021-10-01
THE 715TH RES INST OF CHINA SHIPBUILDING IND CORP
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However, it is difficult to take into account the performance indicators of the transducer in theory.
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[0017] The present invention will be described in detail below in conjunction with accompanying drawing:
[0018] refer to Figure 1 to Figure 3 , a double-cavity broadband transducer for deep water of the present invention, comprising: a low-frequency mosaic ceramic ring or a piezoelectric ceramic ring 1, a large perfusion layer 2, a large flange 3, a high-frequency mosaic ceramic ring or piezoelectric ceramics Whole ring 4, small perfusion layer 5, small flange 6, support rod 7, decoupling connecting rod 8, screw 9, cable head 10, low frequency liquid chamber 11, high frequency liquid chamber 12.
[0019] The low-frequency overflow ring transducer includes a low-frequency mosaic ceramic ring or a piezoelectric ceramic ring 1, and a large flange 3 is arranged at both ends of the pour-molded low-frequency mosaic ceramic ring or piezoelectric ceramic ring 1. The high-frequency overflow ring transducer described above includes a high-frequency inlaid ceramic ring or a piezoelec...
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The invention provides a double-liquid-cavity broadband transducer for deep water, a radiation sound field of the transducer is formed by superposing sound fields generated by resonance of an inner liquid cavity and an outer liquid cavity and radial resonance of two circular ring transducers, the mixed excitation mode enables two vibration modes to be coupled to form broadband emission, and sound waves can be horizontally radiated in all directions. By means of the working mode of anti-phase power-up driving, under the condition that the wavelength of sound waves is far larger than the structural size of the transducers, when the high-frequency and low-frequency overflow ring transducers vibrate in an anti-phase radial mode to radiate sound waves, fluid in an inner liquid cavity is in a contraction phase, fluid in an outer liquid cavity is in an expansion phase, and the transducers do similar breathing vibration; and the inherent 180-degree phase difference between vibration of the high-frequency liquid cavity and vibration of the low-frequency liquid cavity is compensated and eliminated, so that the coupling condition between sound radiation generated by resonance of the high-frequency liquid cavity and the low-frequency liquid cavity is improved, and the electro-acoustic conversion efficiency of the transducer is improved.
Description
technical field [0001] The invention relates to the field of transducers, and mainly relates to a wide-band transducer with double liquid chambers for deep water. Background technique [0002] As the concept of "network-centric underwater warfare" is heating up, more and more attention has been paid to the construction of an integrated underwater communication, detection, command and control, and navigation system centered on an underwater information network. Multi-system underwater acoustic communication heterogeneous network is a heterogeneous network that is compatible with multiple communication systems and supports diverse applications. A new type of underwater information network with the ability to expand the network scale on demand. As an "underwater mobile communication network", the network is to build an underwater reconnaissance and early warning system, an underwater offensive and defensive system, and support a distributed networked warning system, an underwa...
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IPC IPC(8): H04R1/44H04R17/10H04B13/02H04B11/00
CPCH04R1/44H04R17/10H04B13/02H04B11/00H04R2201/02H04R2217/00Y02D30/70
Inventor 任一石张怡珺刘浩朱小辉苏妍应晓伟谢民赵天吉
Owner THE 715TH RES INST OF CHINA SHIPBUILDING IND CORP