CN202316266U - High frequency wide-band transducer for ultrasonic testing - Google Patents
High frequency wide-band transducer for ultrasonic testing Download PDFInfo
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- CN202316266U CN202316266U CN2011204563182U CN201120456318U CN202316266U CN 202316266 U CN202316266 U CN 202316266U CN 2011204563182 U CN2011204563182 U CN 2011204563182U CN 201120456318 U CN201120456318 U CN 201120456318U CN 202316266 U CN202316266 U CN 202316266U
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Abstract
The utility model relates to a high frequency wide-band transducer for ultrasonic testing, which comprises a decoupling material layer, a shell and a cable, and structurally comprises three layers: i.e. an upper layer is a front radiation matching layer, an intermediate layer is a composite material layer which consists of a multilayer composite structure piezoelectronic device and high polymer materials, and a lower layer is a rear lining matching layer. The high frequency wide-band transducer has the beneficial effects that: the provided high frequency wide-band transducer is a round, square or polygonal planar element in appearance, the wire leading of an electrode of an active element of the transducer is realized through high-temperature welding, so the high frequency wide-band transducer has high reliability and can endure long-term high-voltage working; and compared with a solid piezoelectronic device, the obtained transducer has a wider performance bandwidth, and compared with other piezoelectronic composite materials, the production technological process of the transducer is simpler and obvious advantages are achieved.
Description
Technical field
The utility model relates to a kind of transducer designs and preparing technical field, is mainly used in Ultrasonic Detection, also can be used for the high-frequency wideband transducer of aspects such as the underwater sound, medical supersonic, industrial Ultrasonic Detection.
Background technology
High-frequency transducer generally is meant the transducer of operating frequency more than 20 KHzs, therefore is called ultrasonic transducer usually again.Its higher operating frequency has determined that the ultrasonic transducer resolving power is high, the near characteristics of operating distance.Ultrasonic transducer is very extensive in the application of civil area, can be divided into by the purposes difference and detect ultrasonic, power ultrasonic, ultrasonic measurement, ultrasonic therapy etc.Detect the ultrasonic medical ultrasonic that can be divided into again and detect and industrial Ultrasonic Detection, the former comprises the B ultrasonic diagnostic equipment of well known, and the latter comprises upward widely used harmless flaw detector of industry.Power ultrasonic mainly is to utilize effects such as ultrasonic physics, chemistry to come carrier is handled accordingly, mainly comprises ultrasonic cleaning, ultra-sonic welded, Ultrasonic machining, sonicated etc.Ultrasonic measurement mainly comprises level gauging, flow-speed measurement, temperature survey, acoustic characteristic measurement etc.Ultrasonic therapy then comprises ultrasonic physiotherapy, ultrasonic external stone crushing, the ultrasonic cancer etc. of controlling.High-frequency transducer is also very extensive in application of military field, comprises on-shore sonar, imaging sonar, shallow sea depth-determining sonar, anti-frogman's sonar, harbour warning sonar, wake homing sonar etc., and the characteristics of these sonars all are that resolving power is than higher.
Therefore along with the development of signal processing technology and DSP hardware, the operational capability of signal processor is more and more stronger, and the treatable frequency range of institute is more and more wideer, transducer has been proposed higher bandwidth requirement.In addition,, require the work blind area little, therefore generally also require high-frequency transducer to have good transient effect because high-frequency transducer is commonly used to survey close-in target.
Summary of the invention
The purpose of the utility model is to overcome the deficiency of above-mentioned existence, and a kind of high-frequency wideband transducer that is used for Ultrasonic Detection is provided.
The purpose of the utility model is accomplished through following technical scheme; It comprises the material layer of decoupling, shell, cable; Comprise three layers on the transducer architecture: promptly the upper strata is the previous irradiation matching layer; The intermediate layer is the composite layer that multi-layer compound structure piezo component and macromolecular material are formed, and lower floor is a back backing matching layer; Be enclosed with one deck material layer of decoupling in the outside of this composite layer and back backing matching layer; The decouple upper end of material layer is covered with one deck previous irradiation matching layer; This previous irradiation matching layer is poured on the multi-layer compound structure piezo component upper surface, is wrapped with a shell in this outside of decoupling material layer and previous irradiation matching layer; Described back backing matching layer is poured on the multi-layer compound structure piezo component lower surface, and welds a cable in the lower end of back backing matching layer, and this cable is fixed on the described shell bottom center.
As preferably, described multi-layer compound structure piezo component is the active part of transducer, is through solid piezoceramic material element being adopted the two-sided bar shaped cutting back formation of not cutting, and profile is circular, square or polygon plane element.
As preferably; Comprise three layers on the described multi-layer compound structure piezo component structure: both ends of the surface are to be the strip of piezoelectric material that bar shaped is arranged; The intermediate layer is the particle post of piezoelectric, and the piezoelectric strip electrode of both ends of the surface is through the electrode of element as a whole after the wire bonds.
The beneficial effect of the utility model is: the high-frequency wideband transducer profile that is provided is circular, square or polygon parallel planes element, and the contact conductor of transducer active component realizes that through high-temperature soldering reliability is high, can bear long-time high voltage operation; Compare solid piezo component, the utility model gained transducer performance broader bandwidth is compared other piezo-electricity composite material, and the preparation process of the utility model is easier, has remarkable advantages.
Description of drawings
Fig. 1 is the high-frequency wideband transducer architecture sketch map of the utility model;
Fig. 2 is the multi-layer compound structure piezo component plan structure sketch map of the utility model;
Fig. 3 is that the multi-layer compound structure piezo component of the utility model is looked up structural representation;
Label in the accompanying drawing is respectively: the material layer of 1, decoupling, 2, shell, 3, cable, 4, the previous irradiation matching layer, 5, composite layer, 6, the multi-layer compound structure piezo component, 7, back backing matching layer, 61, the particle post, 62, strip of piezoelectric material.
The specific embodiment
To combine accompanying drawing that the utility model is done detailed introduction below: shown in accompanying drawing 1; The utility model comprises the material layer 1 of decoupling, shell 2, cable 3; Comprise three layers on the transducer architecture: promptly the upper strata is a previous irradiation matching layer 4; The intermediate layer is the composite layer 5 that multi-layer compound structure piezo component 6 and macromolecular material are formed, and lower floor is a back backing matching layer 7; Be enclosed with one deck material layer 1 of decoupling in the outside of this composite layer 5 and back backing matching layer 7; The decouple upper end of material layer 1 is covered with one deck previous irradiation matching layer 4; This previous irradiation matching layer 4 is poured on multi-layer compound structure piezo component 6 upper surfaces, is wrapped with a shell 2 in this outside of decoupling material layer 1 and previous irradiation matching layer 4; Described back backing matching layer 7 is poured on multi-layer compound structure piezo component 6 lower surfaces, and welds a cable 3 in the lower end of back backing matching layer 7, and this cable 3 is fixed on described shell 2 bottom center.
Described multi-layer compound structure piezo component 6 is the active part of transducer, is through solid piezoceramic material element being adopted the two-sided bar shaped cutting back formation of not cutting, and profile is circular, square or polygon plane element.
Comprise three layers on described multi-layer compound structure piezo component 6 structures: both ends of the surface are to be the strip of piezoelectric material 62 that bar shaped is arranged; The intermediate layer is the particle post 61 of piezoelectric, and the piezoelectric strip electrode of both ends of the surface is through the electrode of element as a whole after the wire bonds.
The technical characterstic of the utility model is: do not cut the multi-layer compound structure piezo component 6 that bar shaped cutting back forms and be the active part of transducer through solid piezoceramic material components and parts being carried out the two sides; Components and parts are the piezoelectric of strip; The intermediate layer is the particle post 61 of piezoelectric; The residue electrode layer on two sides is the electrode of element as a whole still, and 7 perfusions combine with back backing matching layer through previous irradiation matching layer 4 again.After the matching layer perfusion, the composite layer 5 that middle multi-layer compound structure piezo component 6 and macromolecular material are formed.
The concrete making step narration of the utility model is (data in this instance and result be not as the general constraint of restriction the utility model patent) as follows:
1, the circular solids plane piezoceramic material element that element adopts
carries out positive and negative twice staggered cutting; Be prepared into multi-layer compound structure piezo component 6, like Fig. 2, shown in 3;
2, contact conductor adopts wire bonds at multi-layer compound structure piezo component 6 upper surfaces and lower surface;
3, back backing matching layer 7 perfusions are adopted epoxy tungsten powder mixture (volume ratio 1: 10) perfusion, thickness 5mm, normal temperature cure;
4, previous irradiation matching layer 4 perfusions are adopted epoxy material, and are vacuumized processing, and 80 ℃ of hot settings polish smooth the radiation end face again;
5, welding cable 3, and the transducer architecture sketch map is as shown in Figure 1.
The resonant frequency that transducer records is 590kHz, and it is 450kHz that-6dB sends responsive bandwidth, and the transducer bandwidth of processing than the solid piezoelectric element that adopts same size is twice.
Except that the foregoing description, all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (3)
1. high-frequency wideband transducer that is used for Ultrasonic Detection; Comprise the material layer of decoupling (1), shell (2), cable (3); It is characterized in that: comprise three layers on the transducer architecture: promptly the upper strata is previous irradiation matching layer (4); The intermediate layer is the composite layer (5) that multi-layer compound structure piezo component (6) and macromolecular material are formed, and lower floor is a back backing matching layer (7); The outside at this composite layer (5) and back backing matching layer (7) is enclosed with one deck material layer (1) of decoupling; The decouple upper end of material layer (1) is covered with one deck previous irradiation matching layer (4); This previous irradiation matching layer (4) is poured on multi-layer compound structure piezo component (6) upper surface, is wrapped with a shell (2) in the outside of this material layer of decoupling (1) and previous irradiation matching layer (4); Described back backing matching layer (7) is poured on multi-layer compound structure piezo component (6) lower surface, and welds a cable (3) in the lower end of back backing matching layer (7), and this cable (3) is fixed on described shell (2) bottom center.
2. the high-frequency wideband transducer that is used for Ultrasonic Detection according to claim 1; It is characterized in that described multi-layer compound structure piezo component (6) is the active part of transducer; Be through solid piezoceramic material element being adopted the two-sided bar shaped cutting back formation of not cutting, profile is circular, square or polygon plane element.
3. the high-frequency wideband transducer that is used for Ultrasonic Detection according to claim 2; It is characterized in that comprising three layers on described multi-layer compound structure piezo component (6) structure: both ends of the surface are to be the strip of piezoelectric material (62) that bar shaped is arranged; The intermediate layer is the particle post (61) of piezoelectric, and the piezoelectric strip electrode of both ends of the surface is through the electrode of element as a whole after the wire bonds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204563182U CN202316266U (en) | 2011-11-17 | 2011-11-17 | High frequency wide-band transducer for ultrasonic testing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204563182U CN202316266U (en) | 2011-11-17 | 2011-11-17 | High frequency wide-band transducer for ultrasonic testing |
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| Publication Number | Publication Date |
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| CN202316266U true CN202316266U (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011204563182U Expired - Lifetime CN202316266U (en) | 2011-11-17 | 2011-11-17 | High frequency wide-band transducer for ultrasonic testing |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277242A (en) * | 2015-11-13 | 2016-01-27 | 中国电子科技集团公司第二十六研究所 | Ultrasonic transducer structure of ultrasonic flow meter |
| CN105989827A (en) * | 2015-02-13 | 2016-10-05 | 中国科学院声学研究所 | Depth pressure-resistant underwater acoustic transducer and manufacturing method thereof |
| CN109985796A (en) * | 2019-03-25 | 2019-07-09 | 中国船舶重工集团公司第七一五研究所 | A kind of polygon array element piezo-electricity composite material energy converter preparation method |
| CN110743770A (en) * | 2019-10-09 | 2020-02-04 | 中国船舶重工集团公司第七0七研究所九江分部 | High-frequency composite material speed measurement transducer |
| CN114308601A (en) * | 2021-12-24 | 2022-04-12 | 海鹰企业集团有限责任公司 | Transducer based on 2-2 type piezoelectric composite material covering matching layer and preparation method thereof |
-
2011
- 2011-11-17 CN CN2011204563182U patent/CN202316266U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105989827A (en) * | 2015-02-13 | 2016-10-05 | 中国科学院声学研究所 | Depth pressure-resistant underwater acoustic transducer and manufacturing method thereof |
| CN105277242A (en) * | 2015-11-13 | 2016-01-27 | 中国电子科技集团公司第二十六研究所 | Ultrasonic transducer structure of ultrasonic flow meter |
| CN109985796A (en) * | 2019-03-25 | 2019-07-09 | 中国船舶重工集团公司第七一五研究所 | A kind of polygon array element piezo-electricity composite material energy converter preparation method |
| CN110743770A (en) * | 2019-10-09 | 2020-02-04 | 中国船舶重工集团公司第七0七研究所九江分部 | High-frequency composite material speed measurement transducer |
| CN114308601A (en) * | 2021-12-24 | 2022-04-12 | 海鹰企业集团有限责任公司 | Transducer based on 2-2 type piezoelectric composite material covering matching layer and preparation method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |
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| CX01 | Expiry of patent term |