Low-directional-fluctuation arc-shaped transmitting transducer array
A transmitting transducer and directivity technology, which is applied in the direction of fluid using vibration, can solve the problems of arc-shaped transmitting transducer arrays with low directivity fluctuations and large directivity fluctuations, and achieve simple structure and horizontal directivity fluctuations small, simple effect
Active Publication Date: 2019-04-12
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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Embodiment Construction
[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
The invention relates to a low-directional-fluctuation arc-shaped transmitting transducer array, and belongs to the technical field of hydroacoustic engineering. The specifications and sizes of piezoelectric ceramic particles are designed; the positive pole faces of the piezoelectric ceramic particles are evenly bonded to a flexible electrode layer at equal intervals; the flexible electrode layerbonded with the piezoelectric ceramic particles is bonded to an elliptical base; the center distances between negative pole faces of the piezoelectric ceramic particles are gradually increased from the middle of an ellipse to the two ends of the ellipse; the space between the piezoelectric ceramic particles is filled with epoxy resin; negative poles of all the piezoelectric ceramic particles are connected in parallel, a wire is lead out, wires of positive poles are lead out of the flexible electrode layer; and a whole transducer is completely subjected to watertight packaging through polyurethane rubber. The low-directional-fluctuation arc-shaped transmitting transducer array has the advantages of being ingenious in design, simple in process realization, convenient to manufacture, and lowin directional fluctuation, and can be widely used in the fields of a multibeam echosounder, 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 emission 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...
Claims
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Login to View More 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