CN203551520U - Chaotic cavity transducer (CCT) - Google Patents
Chaotic cavity transducer (CCT) Download PDFInfo
- Publication number
- CN203551520U CN203551520U CN201320622812.0U CN201320622812U CN203551520U CN 203551520 U CN203551520 U CN 203551520U CN 201320622812 U CN201320622812 U CN 201320622812U CN 203551520 U CN203551520 U CN 203551520U
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- cavity
- chaos
- transducer
- cct
- chaotic cavity
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Abstract
The utility model discloses a chaotic cavity transducer (CCT) which comprises an irregular chaotic cavity and a piezoelectric ceramic piece, wherein the irregular chaotic cavity is stuck to the surface of a material to be detected; the piezoelectric ceramic piece is stuck to one side, which is far away from the material to be detected, on the chaotic cavity. By adopting the chaotic cavity transducer, the crack detection of non-reverberation media can be realized while the problems of boundary strain increase and phantom imaging are solved effectively, so that the chaotic cavity transducer can be effectively applied to the detection on national aircraft materials and automobile industrial materials, and plays an important role in ensuring the safe production and the economical and stable running.
Description
Technical field
The utility model relates to signal to be processed and acoustics detection field, especially a kind of chaos cavity transducer CCT.
Background technology
At present, in acoustics signal processing and testing process, in order to improve, crackle is assembled and the quality of imaging, carry out the transducer array of input should overwrite media closure surfaces space around to detect from directive wavefront information.But to implement be more difficult in this operation in application, be just accomplished time reversal in limited angular range, the quality that this has affected signal reversion and has focused on.But by research, find, signal can add from resolution and amplitude the quality of strong focusing through Multiple Scattering or reflection, such as the scattering in waveguide or cavity or reflection.With this understanding, the number of channels that participates in process time reversal can reduce, and process time reversal of a passage becomes feasible even.
In single channel experiment time reversal in the past; that piezoelectric ceramic transducer is directly sticked in test material; but this can produce border strain increase and phantom imaging (Phantom Imaging) problem conventionally, reduced quality and the precision of crack detection.
Summary of the invention
The utility model is mainly the as above problem occurring while detecting in test material for piezoelectric ceramic piece is directly sticked on, and has proposed concept and the design application of chaos cavity transducer.The utility model solves strain increase, phantom imaging (Phantom Imaging) problem and the realization occurring in dielectric boundaries in testing process and completes detection and the imaging problem in non-reverberation medium.
The technical solution of the utility model is:
A kind of chaos cavity transducer CCT, it comprises erose chaos cavity and piezoelectric ceramic piece, and described erose chaos cavity sticks on the surface of material to be detected, and piezoelectric ceramic piece sticks on the one side away from material to be detected on chaos cavity.
Erose chaos cavity of the present utility model is the irregular metal solid of outer shape.
Metal solid of the present utility model inside is solid.
Metal solid of the present utility model inside has at least one cavity.
Metal solid of the present utility model is inner solid and have and penetrate surperficial hole, or is deep into certain depth but is not penetrated overall hole by surface.
The beneficial effects of the utility model:
The utility model chaos cavity transducer is when effectively solving border strain increase, phantom imaging (Phantom Imaging) problem, can realize the crack detection at non-reverberation medium, this makes in its detection that can effectively be applied in the large aircraft material of country and auto industry material, and this is to guaranteeing safe production and economic even running has great significance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1, erose chaos cavity; 2, piezoelectric ceramic piece;
3, chaos cavity transducer CCT; 4, material to be detected.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in Figure 1, a kind of chaos cavity transducer CCT3, it comprises erose chaos cavity 1 and piezoelectric ceramic piece 2, and described erose chaos cavity 1 sticks on the surface of material 4 to be detected, and piezoelectric ceramic piece 2 sticks on the one side away from material 4 to be detected on chaos cavity 1.
Erose chaos cavity of the present utility model is the irregular metal solid of outer shape.Metal solid inside is solid; Also can be, inner solid and have and penetrate surperficial hole, or be deep into certain depth but do not penetrate overall hole by surface; Or inside has at least one cavity.
In the process of work, in order to realize detection and the imaging to crackle, binding time reversion acoustic technique.When signal is sent to after piezoelectric ceramic piece by signal source, when ripple, in cavity, propagate at every turn and arrive cavity and detect on the border of medium, signal energy in chaos cavity transducer 3 after multiple reflections and scattering, having part energy is transferred in testing medium, after the reversion of laser vibration measurer detects afterwards vibration signal elapsed time, again send to chaos cavity transducer, finally realize the signal focus of defect in medium or cracks.
The utility model does not relate to partly all prior aries that maybe can adopt same as the prior art to be realized.
Claims (5)
1. a chaos cavity transducer CCT, it is characterized in that it comprises erose chaos cavity (1) and piezoelectric ceramic piece (2), described erose chaos cavity (1) sticks on the surface of material to be detected (4), and piezoelectric ceramic piece (2) sticks on the upper one side away from material to be detected (4) of chaos cavity (1).
2. chaos cavity transducer CCT according to claim 1, is characterized in that described erose chaos cavity (1) is the irregular metal solid of outer shape.
3. chaos cavity transducer CCT according to claim 2, is characterized in that described metal solid inside is solid.
4. chaos cavity transducer CCT according to claim 2, is characterized in that described metal solid inside has at least one cavity.
5. chaos cavity transducer CCT according to claim 2, is characterized in that described metal solid is inner solid and has penetrating surperficial hole, or be deep into certain depth but do not penetrated overall hole by surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320622812.0U CN203551520U (en) | 2013-10-10 | 2013-10-10 | Chaotic cavity transducer (CCT) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320622812.0U CN203551520U (en) | 2013-10-10 | 2013-10-10 | Chaotic cavity transducer (CCT) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203551520U true CN203551520U (en) | 2014-04-16 |
Family
ID=50469617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320622812.0U Expired - Fee Related CN203551520U (en) | 2013-10-10 | 2013-10-10 | Chaotic cavity transducer (CCT) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203551520U (en) |
-
2013
- 2013-10-10 CN CN201320622812.0U patent/CN203551520U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20141010 |
|
| EXPY | Termination of patent right or utility model |