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Transducer array and production thereof

A transducer array, transducer technology, applied in the manufacture/assembly of piezoelectric/electrostrictive devices, piezoelectric/electrostrictive/magnetostrictive devices, fluids utilizing vibration, etc. The effects of pressure, mechanical vibration and shock, and environmental temperature changes, the large difference in mechanical flexibility of two-phase materials, and the difficulty of electrode preparation, etc., achieve the effect of good amplitude and phase consistency, easy to form arrays, and not easy to deform.

Inactive Publication Date: 2006-08-16
PEKING UNIV
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Problems solved by technology

The piezoelectric crystals in the conventional piezoelectric composite structure are separated horizontally or vertically, and they are only bonded together with high molecular polymers, which are easily affected by pressure, mechanical vibration shock and environmental temperature changes, and the piezoelectric composite On the electrode surface of the material, the mechanical flexibility of the two-phase materials is quite different, and the electrode preparation is not easy to be flat and easy to break

Method used

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  • Transducer array and production thereof
  • Transducer array and production thereof
  • Transducer array and production thereof

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Embodiment Construction

[0032] The invention can provide a high-frequency sonar transducer and a transducer array, which can be used in technical fields such as synthetic aperture sonar, minehunting sonar, side-scan sonar and depth-finding sonar. refer to figure 1 , the transducer includes: wafer 1, conductive positioning ring 2, backing 3, matching layer 4, housing 5 and output cable, wafer 1 is a sheet of piezoelectric composite material, formed by pouring polyurethane material between the wafer and the housing and on the surface of the wafer The matching layer is provided with a conductive positioning ring 2 between the wafer 1 and the backing 3, the chip 1 is fixed on the conductive positioning ring 2, and two electrode leads 14 are respectively drawn out on the upper electrode of the wafer and the conductive positioning ring, and the leads are connected to the output The cables are connected. refer to figure 2 , wafer 1 is a 1-3-2 piezoelectric composite material, which is composed of a 1-3 p...

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Abstract

A transducer and its array for synthesizing different sonar devices are disclosed. Said transducer and its array are composed of 1-3-2 type composite piezoelectric chip(s), back liner, matching layer, casing, output lines, and electrically conductive locating coil between said chip and back liner. Its advantages are correct locating, no deformation and high stability.

Description

technical field [0001] The invention belongs to the technical field of high-frequency sonar transducers and arrays and their preparation, and specifically relates to a transducer and an array using a novel 1-3-2 piezoelectric composite material as a transducing material, which can be used for synthetic aperture acoustics Sonar, mine hunting sonar, side scan sonar and bathymetry sonar etc. Background technique [0002] Underwater acoustic equipment is a device that uses sound waves to carry information to detect and identify underwater targets. It is the most effective underwater detection equipment today. Underwater acoustic equipment is mainly used in the military. In recent years, in order to improve the combat capability of submarines and enhance the anti-submarine capability, many countries are trying to strengthen the research of underwater acoustic technology. At the same time, hydroacoustic equipment is also widely used in ocean development, and it is a very effectiv...

Claims

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Application Information

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IPC IPC(8): B06B1/06H01L41/26H01L41/45
Inventor 李光栾桂冬张金铎唐劲松王丽坤张福学岳军
Owner PEKING UNIV
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