CN201379912Y - Self-focusing ultrasonic transducer - Google Patents
Self-focusing ultrasonic transducer Download PDFInfo
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- CN201379912Y CN201379912Y CN200820233947U CN200820233947U CN201379912Y CN 201379912 Y CN201379912 Y CN 201379912Y CN 200820233947 U CN200820233947 U CN 200820233947U CN 200820233947 U CN200820233947 U CN 200820233947U CN 201379912 Y CN201379912 Y CN 201379912Y
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- ultrasonic transducer
- focusing ultrasonic
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Abstract
The utility model relates to a self-focusing ultrasonic transducer, which comprises two or more sectorial spherical ceramic slices (1) and a hub-type frame (2) matched with the sectorial spherical ceramic slices (1). The sectorial spherical ceramic slices (1) are fixed on the hub-type frame (2) to form a large-diameter self-focusing ultrasonic transducer. The sectorial spherical ceramic slices (1) are bonded on the hub-type frame (2) through adhesives. The adhesives are insulating type adhesives which are selected according to the required bonding strength and the impedance matching. The sectorial spherical ceramic slices (1) are made of piezoelectric materials. The hub-type frame (2) is made of stainless steel or aluminum alloy. Since the novel melon-skin type ceramic slices are used, the utility model has the advantages that the focusing transducer with larger diameter and maximized emitting area can be manufactured; and the ceramic slices of the same group can be grouped before being bonded and the consistency of the parameters such as the frequency impedance and the like is high.
Description
Technical field
This utility model relates to medical instruments field, particularly a kind of self-focusing ultrasonic transducer.
Background technology
Usually the realization that focuses on for large power supersonic, can add modes such as acoustic lens, concave sphere self focusing, phase-control focusing by flat ceramic, but, these modes are used for the external supersonic treatment, all have different limitation, for example dull and stereotyped piezoelectric ceramics adds the acoustic lens structure, as described in patent US005827204A, because the acoustic energy loss of lens, efficient is lower; Big concave spherical surface is after suppressing isodiametric cylinder earlier, make the sphere thin slice by the way of machining again, manufacturing cost height not only, and because cylinder thickness is bigger, density is difficult to unanimity in the time of compacting, and the sphere that causes being processed into has the even phenomenon of density unevenness; The application of phase-control focusing is as described in patent CN101190436A, when producing high-power focus, its more superpower secondary lobe is followed in very difficult elimination, use very inconvenient, and in order to realize electronics control phase, a lot of groups of relevant signal element and power amplifiers will be arranged, make the increase of controlling cost.
In order to address these problems, the trial of a lot of new-type focus methods is also arranged, as described in patent CA1288765A, the way of employing is on the big conical ring that a plurality of little transducers are installed, and realizes geometric focusing, this method has been avoided the weak point of acoustic lens, big concave spherical surface, phased array etc., but also having brought new problem, is exactly that the transducer individual size is bigger, and effectively emission area is smaller, at clinical treatment, particularly use very inconvenient in automatization's treatment.
The utility model content
The purpose of this utility model is: for overcoming the above-mentioned deficiency of prior art, thereby provide a kind of self-focusing ultrasonic transducer.
For achieving the above object, a kind of self-focusing ultrasonic transducer that this utility model provides, it is characterized in that, this self-focusing ultrasonic transducer comprises: fan-shaped sphere ceramic sheet 1 and the hub-type framework 2 that matches with fan-shaped sphere ceramic sheet more than two or two, described fan-shaped sphere ceramic sheet 1 is fixed on the self-focusing ultrasonic transducer that forms footpath at a gulp on the hub-type framework 2.
Described fan-shaped sphere ceramic sheet 1 bonds on the hub-type framework 2 by adhesive, and described adhesive is the insulated type bonding agent, and concrete adhesive strength and impedance matching as required selected.
A kind of preferred as such scheme, described adhesive is an epoxy resin.
As of the present utility model a kind of preferred, described fan-shaped sphere ceramic sheet 1 is 8.
Described fan-shaped sphere ceramic sheet 1 is adopted piezoelectric and is made.Described piezoelectric is PZT material or PZT composite.
Described hub-type framework 2 adopts stainless steel material or aluminium alloy is made.
Advantage of the present utility model is, self-focusing ultrasonic transducer of the present utility model owing to adopted novel melon skin formula potsherd structure, makes the more bigbore focused transducer of manufacturing, has the maximization emission area simultaneously and become possibility; And potsherd can be through screening grouping before bonding on the same group, makes parameter such as frequency impedance have more concordance.
Compare with prior art, following advantage arranged:
1, compare with the heavy caliber transducer that uses lens focus, self-focusing mode of the present utility model has better efficient, lower path energy loss;
2, compare with single focusing sheet being installed to a transducer (CA1288765A describes as patent) that focuses on the matrix, have higher effective unit emission area;
3, compare with heavy caliber monolithic self-focusing transducer, have the high characteristics of handling ease yield rate.
In a word, this utility model provides a kind of bigbore self-focusing ultrasonic transducer, has the good focusing performance, lower energy loss, and bigger effective emission area, production and processing is easy.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of the fan-shaped sphere ceramic sheet of this utility model;
Fig. 3 is the processing sketch map that is used to cut this utility model potsherd blank.
The accompanying drawing sign
1, melon skin formula potsherd 2, hub-type framework
The specific embodiment
Ultrasonic transducer of the present utility model as shown in Figure 1, is made of some fan-shaped sphere ceramic sheets 1 and hub-type framework 2; The fan-shaped sphere ceramic sheet of one group of melon skin formula, every shape, as shown in Figure 2.Every group quantity can be 2 or multi-disc more, and this example is 8, bonds to correspondence position on the hub-type framework by the ring bonding agent.Potsherd is the PZT material, also can other piezoelectrics of formula or PZT composite, after making piezoelectric patches machine-shaping, higher consistent in density is arranged, can adopt structure as shown in Figure 3, reduce the thickness of cylinder base substrate, adopt 8 every group structure as this example, each sotck thinkness h is less than using 25% of overall concave spherical structure sotck thinkness, after with tonnage forcing press compacted under, density can be more even like this; The hub-type framework is a stainless steel material, also can the formula aluminium alloy etc. other metal materials; Bonding agent can be an epoxy resin adhesive, also can be other insulated type bonding agents, and concrete adhesive strength and impedance matching as required selected.
This polynary melon skin formula self-focusing transducer, the self-focusing potsherd is that the sphere of similar Exocarpium Citrulli is fan-shaped, one group of such potsherd is installed on the skeleton of wheel hub type, passes through adhering with epoxy resin between each unit and in the middle of the skeleton.Avoid using the additional energy loss of the plane ceramic transducer of acoustic lens, solved problem such as use at the bottom of big monolithic spherical surface focusing potsherd processing difficulties, the yield rate.
Claims (7)
1, a kind of self-focusing ultrasonic transducer, it is characterized in that, this self-focusing ultrasonic transducer comprises: fan-shaped sphere ceramic sheet (1) and the hub-type framework (2) that matches with fan-shaped sphere ceramic sheet (1) more than two or two, described fan-shaped sphere ceramic sheet (1) is fixed on hub-type framework (2) and goes up the self-focusing ultrasonic transducer that forms footpath at a gulp.
2, self-focusing ultrasonic transducer according to claim 1 is characterized in that, described fan-shaped sphere ceramic sheet (1) bonds on the hub-type framework (2) by adhesive, and described adhesive is the insulated type bonding agent.
3, self-focusing ultrasonic transducer according to claim 2 is characterized in that, described adhesive is an epoxy resin.
4, self-focusing ultrasonic transducer according to claim 1 is characterized in that, described fan-shaped sphere ceramic sheet (1) is 8.
5, self-focusing ultrasonic transducer according to claim 1 is characterized in that, described fan-shaped sphere ceramic sheet (1) is adopted piezoelectric and made.
6, self-focusing ultrasonic transducer according to claim 5 is characterized in that, described piezoelectric is PZT material or PZT composite.
7, self-focusing ultrasonic transducer according to claim 1 is characterized in that, described hub-type framework (2) adopts stainless steel material or aluminium alloy is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820233947U CN201379912Y (en) | 2008-12-30 | 2008-12-30 | Self-focusing ultrasonic transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820233947U CN201379912Y (en) | 2008-12-30 | 2008-12-30 | Self-focusing ultrasonic transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201379912Y true CN201379912Y (en) | 2010-01-13 |
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ID=41523385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200820233947U Expired - Fee Related CN201379912Y (en) | 2008-12-30 | 2008-12-30 | Self-focusing ultrasonic transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201379912Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101797556A (en) * | 2010-03-12 | 2010-08-11 | 上海交通大学 | Omnibearing ultrasonic wave generation device |
| CN102210910A (en) * | 2010-04-02 | 2011-10-12 | 重庆融海超声医学工程研究中心有限公司 | Ultrasonic transducer |
| WO2012094850A1 (en) * | 2011-01-14 | 2012-07-19 | 深圳市普罗惠仁医学科技有限公司 | Ultrasonic focusing transducer |
| CN114798395A (en) * | 2022-03-11 | 2022-07-29 | 华中科技大学 | Plane focusing type photoacoustic transducer device |
-
2008
- 2008-12-30 CN CN200820233947U patent/CN201379912Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101797556A (en) * | 2010-03-12 | 2010-08-11 | 上海交通大学 | Omnibearing ultrasonic wave generation device |
| CN102210910A (en) * | 2010-04-02 | 2011-10-12 | 重庆融海超声医学工程研究中心有限公司 | Ultrasonic transducer |
| CN102210910B (en) * | 2010-04-02 | 2013-02-13 | 重庆融海超声医学工程研究中心有限公司 | Ultrasonic transducer |
| WO2012094850A1 (en) * | 2011-01-14 | 2012-07-19 | 深圳市普罗惠仁医学科技有限公司 | Ultrasonic focusing transducer |
| CN114798395A (en) * | 2022-03-11 | 2022-07-29 | 华中科技大学 | Plane focusing type photoacoustic transducer device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING RUIZHICONG TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: BEIJING AOMAITE SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20110308 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100080 2003, TOWER B, SIGMA APT., NO.49, ZHICHUN ROAD, HAIDIAN DISTRICT, BEIJING TO: 100191 ROOM 2002, TOWER A, SIGMA APT., NO.49, ZHICHUN ROAD, HAIDIAN DISTRICT, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110308 Address after: 100191 Beijing City, Haidian District Zhichun Road No. 49 sigma apartment block A room 2002 Patentee after: Beijing Ruizhicong Technology Co.,Ltd. Address before: 100080 Beijing City, Haidian District Zhichun Road No. 49 block B 2003 Sigma Patentee before: Beijing Aomaite Science & Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100113 Termination date: 20171230 |