Ultrasonic transducer, gradual-change sound impedance matching layer and manufacturing method of gradual-change sound impedance matching layer

A production method and acoustic impedance technology, applied in the direction of sensors, electrical components, additive processing, etc., can solve problems such as difficulty, high cost, and complex production of gradual acoustic impedance, and achieve short production cycle, convenient operation, and optimized process production The effect of the process

Active Publication Date: 2016-03-09
EDAN INSTR
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Problems solved by technology

[0008] The object of the present invention is to provide an ultrasonic transducer, a gradient acoustic impedance matching layer and a manufacturing method thereof, ...

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  • Ultrasonic transducer, gradual-change sound impedance matching layer and manufacturing method of gradual-change sound impedance matching layer
  • Ultrasonic transducer, gradual-change sound impedance matching layer and manufacturing method of gradual-change sound impedance matching layer
  • Ultrasonic transducer, gradual-change sound impedance matching layer and manufacturing method of gradual-change sound impedance matching layer

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[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or there may be an intervening element at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

[0028] It should also be noted that the orientation terms such as left, right, up, and down in this embodiment are only relative concepts or refer to the normal use state of the product, and should not be regarded as limiti...

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Abstract

The invention relates to the technical field of transducers and provides an ultrasonic transducer, a gradual-change sound impedance matching layer and a manufacturing method of the gradual-change sound impedance matching layer. The gradual-change sound impedance matching layer comprises a body. Sound impedance of the body is gradually changed from one end of the body to the other end of the body continuously, and the body is made from a tackifier and at least one powder base material. By the adoption of the tackifier and the powder base material, the required raw materials of the manufactured gradual-change sound impedance matching layer are small, operation is convenient, the manufacturing cycle is short, production is easy to conduct, and industrialization is achieved; and furthermore, the efficiency for transmitting sound energy to an object to be detected is improved remarkably, meanwhile, the process manufacturing procedure can be optimized, it is avoided that the tackifier is introduced to bond multiple matching layers, the time domain response and frequency domain response of the ultrasonic traducer are further improved, and the sensitivity of the ultrasonic traducer is improved remarkably, and the bandwidth of the ultrasonic traducer is increased remarkably.

Description

technical field [0001] The invention relates to the technical field of transducers, in particular to an ultrasonic transducer, a graded acoustic impedance matching layer and a manufacturing method thereof. Background technique [0002] Because of its piezoelectric effect, the ultrasonic transducer is a device that can realize the mutual conversion of electrical signals and acoustic signals, and is the core acoustic device in the ultrasonic system. At present, the double-layer matching technology is generally used in ultrasonic probes. The main acoustic structure of the existing double-layer matching ultrasonic transducer is as follows: figure 1 As shown, it includes a piezoelectric layer 101 , a first matching layer 1021 , a second matching layer 1022 , a contact layer 103 located above the piezoelectric layer 101 from bottom to top, and a backing layer 104 located below the piezoelectric layer 101 . Among them, the piezoelectric layer 101 is the core part of the ultrasonic...

Claims

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Application Information

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IPC IPC(8): B06B1/06H04R31/00B29C67/24B33Y30/00B33Y70/00
CPCB06B1/064B29C67/0011B29C67/24H04R31/00
Inventor 王文娟周丹刘建华欧阳波
Owner EDAN INSTR
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