Low directivity undulating arc transmitting transducer array
A technology of transmitting transducer and directivity, which is applied in the direction of fluid using vibration, can solve the problems of low directivity fluctuation arc transmitting transducer array, large directivity fluctuation, etc., to improve the directivity diagram and horizontal pointing. The effect of small fluctuation and easy operation
Active Publication Date: 2021-04-30
HARBIN ENG UNIV
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Problems solved by technology
[0007] The purpose of the present invention is to provide a low directivity fluctuation arc-shaped emission transducer array to solve the problem of large directivity fluctuation of the existing arc-shaped emission transducer array
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[0022] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:
[0023] figure 1 It is a structural schematic diagram of a low-directivity arc-shaped emission transducer array of an embodiment of the present invention; as figure 1 As shown in the embodiment, the device includes: according to the operating frequency of the arc-shaped emission transducer array, cutting the piezoelectric ceramic material to obtain piezoelectric ceramic particles 3; bonding the positive electrode surfaces of the piezoelectric ceramic particles 3 to the flexible electrode evenly and equidistantly On the layer 5; the flexible electrode layer 5 with the piezoelectric ceramic particles 3 bonded on the oval substrate 4; the gap between the piezoelectric ceramic particles 3 is filled with epoxy resin 2; excess epoxy resin 2 is removed; The positive electrodes of all the piezoelectric ceramic particles 3 are coated with conductive glue, ...
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Abstract
A low-directivity undulating arc-shaped transmitting transducer array belongs to the technical field of underwater acoustic engineering. Design the specifications and dimensions of the piezoelectric ceramic particles; bond the positive surface of the piezoelectric ceramic particles to the flexible electrode layer evenly and at equal intervals; bond the flexible electrode layer with the piezoelectric ceramic particles to the oval substrate; piezoelectric ceramics The center distance between the negative surfaces of the particles gradually increases from the middle of the ellipse to both ends; the piezoelectric ceramic particles are filled with epoxy resin; the negative electrodes of all piezoelectric ceramic particles are connected in parallel and lead out wires, and the positive wires are led out from the flexible electrode layer ; The whole transducer is water-tightly packaged with polyurethane rubber. The invention has the advantages of ingenious design, simple process realization, convenient manufacture and low directivity fluctuation of the arc-shaped transmitting transducer array, and can be widely used in the fields of multi-beam echo sounder, image sonar, detection sonar and the like.
Description
technical field [0001] The invention belongs to the technical field of underwater acoustic engineering, and in particular relates to a low-directivity undulating arc-shaped emitting transducer array. Background technique [0002] Acoustic waves are the only information carrier capable of long-distance transmission in water media, making underwater acoustic technology the most effective means of sending and obtaining underwater information. As a "window" for underwater acoustic equipment to interact with underwater sound field information, transducers are the Equipped with key components for information sending and information perception. The transducer is the core component of the sonar system, which realizes the one-way or two-way energy conversion between the sonar electrical signal and the underwater acoustic signal, and plays a decisive role in the performance of the sonar. [0003] The arc-shaped transmitting transducer array is a type of transducer array commonly used...
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IPC IPC(8): B06B1/06
CPCB06B1/0622
Inventor 赵慧李海森周天陈宝伟邢天耀王婧琦
Owner HARBIN ENG UNIV