CN208736833U - A kind of probe apparatus and its mounting structure receiving rock sample acoustic emission signal - Google Patents
A kind of probe apparatus and its mounting structure receiving rock sample acoustic emission signal Download PDFInfo
- Publication number
- CN208736833U CN208736833U CN201821564710.7U CN201821564710U CN208736833U CN 208736833 U CN208736833 U CN 208736833U CN 201821564710 U CN201821564710 U CN 201821564710U CN 208736833 U CN208736833 U CN 208736833U
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- China
- Prior art keywords
- rock sample
- probe apparatus
- metal shell
- acoustic emission
- emission signal
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Abstract
The utility model discloses a kind of probe apparatus and its mounting structure for receiving rock sample acoustic emission signal, can more accurately obtain the signal data that rock sample generates during Experimental on acoustic emission.A kind of probe apparatus receiving rock sample acoustic emission signal, the probe apparatus has metal shell and Piezoelectric Ceramic Coupling face, the Piezoelectric Ceramic Coupling face is in arc-shaped curved surface corresponding with the periphery of cylindrical rock sample, the metal shell completely encloses at Piezoelectric Ceramic Coupling face, the two sides of the metal shell front end are respectively equipped with arc-shaped curved extension, two extensions with the periphery of cylindrical rock sample for being bonded, an extension spring is fixed between the end of the two sides extension of the metal shell, for covering in cylindrical rock sample.
Description
Technical field
The utility model relates to rock mechanics technical fields, more particularly to a kind of probe for receiving rock sample acoustic emission signal
Device and its mounting structure.
Background technique
When carrying out rock mechanics test, need that acoustic emission activity is combined to analyze rock rupture Instability, at present
Probe receiver used in acoustic emission device is mostly cylindrical probe, can receive the letter that rock sample generates during the test
Number, but common problem is when coupling surface of popping one's head in contacts with cylindrical rock sample and receives signal, probe coupling surface cannot be complete
Full fitting rock sample arc-shaped surface；Pop one's head in during test it is not easy to install, be easy to fall off and the interference vulnerable to electromechanical noise；
So data measured and real data difference are larger.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of spy for receiving rock sample acoustic emission signal
Head device and its mounting structure, can more accurately obtain the signal data that rock sample generates during Experimental on acoustic emission.
Purpose of the utility model is realized as follows:
A kind of probe apparatus receiving rock sample acoustic emission signal, the probe apparatus have metal shell and piezoelectric ceramics
Coupling surface, the Piezoelectric Ceramic Coupling face are in arc-shaped curved surface corresponding with the periphery of cylindrical rock sample, and the metal shell exists
It being completely enclosed at Piezoelectric Ceramic Coupling face, the two sides of the metal shell front end are respectively equipped with arc-shaped curved extension,
Two extensions fix one between the end of the two sides extension of the metal shell for being bonded with the periphery of cylindrical rock sample
Extension spring, for covering in cylindrical rock sample.
Preferably, the metal shell, two extensions use acoustic resistive wave interference metal material.
Preferably, the metal shell, two extensions use titanium alloy.
Preferably, two extensions of the metal shell are flaky.
A kind of mounting structure for the probe apparatus receiving rock sample acoustic emission signal, probe apparatus are covered by extension spring in circle
On cylindricality rock sample, the extension spring is in tensional state, the Piezoelectric Ceramic Coupling face of the probe apparatus, the metal shell
Two extensions be bonded respectively with the periphery of cylindrical rock sample.
By adopting the above-described technical solution, the utility model is made into radian same as rock sample by the coupling surface that will pop one's head in
Face, with the good metal material of flexible, anti-interference will pop one's head in outer metal shell be made into " eight " shape enable its with rock sample cambered surface more
Good contact package, and be fixed on rock sample with spring, it can more accurately obtain rock sample and be generated during Experimental on acoustic emission
Signal data.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the I-I schematic cross-sectional view of Fig. 1.
Appended drawing reference
In attached drawing, 1 is piezoelectric ceramics, and 2 be metal shell, and 3 be extension, and 4 be extension spring, and 5 be signal transmission wire.
Specific embodiment
Referring to Fig. 1, Fig. 2, a kind of probe apparatus receiving rock sample acoustic emission signal, the probe apparatus has metal shell
And the piezoelectric ceramics in metal shell, the front end of piezoelectric ceramics are Piezoelectric Ceramic Coupling face, the setting of probe apparatus rear end
Signal transmission wire, the Piezoelectric Ceramic Coupling face are in arc-shaped curved surface corresponding with the periphery of cylindrical rock sample, the metal
Shell completely encloses at Piezoelectric Ceramic Coupling face, it may be assumed that and metal shell is fully wrapped around in addition to coupling surface by piezoelectric ceramics, it is described
The two sides of metal shell front end are respectively equipped with arc-shaped curved extension, and two extensions are flaky, are used for and cylinder
The periphery of rock sample is bonded, and the metal shell, two extensions use acoustic resistive wave interference metal material, and seamless with metal shell
Gap connection, each extension at least cover the 1/3 of metal shell end perimeter.In the present embodiment, the metal shell, two extensions
Using titanium alloy.An extension spring is fixed between the end of the two sides extension of the metal shell, for covering in cylindrical rock
On sample.
A kind of mounting structure for the probe apparatus receiving rock sample acoustic emission signal, probe apparatus are covered by extension spring in circle
On cylindricality rock sample, the extension spring is in tensional state, the Piezoelectric Ceramic Coupling face of the probe apparatus, the metal shell
Two extensions be bonded respectively with the periphery of cylindrical rock sample.
The piezoelectric ceramics of probe and coupling surface are made into and have in such a way that fixed point acquires signal by rock sample Experimental on acoustic emission
The curved surface of certain radian is bonded it completely with rock sample.Metal shell completely encloses at coupling surface and has two extensions to be in
" eight " shape extends outwardly certain distance, and two extensions are connected with spring.Spring has certain initial tensile force, guarantee test
In the process regardless of rock sample shakes or generates Crack failure, probe can be made preferably to be fixed on collection point, so that rock sample be tried
The signal generated during testing can be received preferably.
Finally, it is stated that preferred embodiment above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, to the greatest extent
Pipe has been described in detail the utility model by above preferred embodiment, but those skilled in the art should manage
Solution, can make various changes, without departing from the utility model claims book institute to it in the form and details
The range of restriction.
Claims (5)
1. a kind of probe apparatus for receiving rock sample acoustic emission signal, the probe apparatus have metal shell and piezoelectric ceramics coupling
Conjunction face, it is characterised in that: the Piezoelectric Ceramic Coupling face is in arc-shaped curved surface corresponding with the periphery of cylindrical rock sample, the gold
Belong to shell to completely enclose at Piezoelectric Ceramic Coupling face, the two sides of the metal shell front end are respectively equipped with arc-shaped curved
Extension, two extensions for being bonded with the periphery of cylindrical rock sample, the end of the two sides extension of the metal shell it
Between fix an extension spring, for covering in cylindrical rock sample.
2. a kind of probe apparatus for receiving rock sample acoustic emission signal according to claim 1, which is characterized in that the metal
Shell, two extensions use acoustic resistive wave interference metal material.
3. a kind of probe apparatus for receiving rock sample acoustic emission signal according to claim 2, which is characterized in that the metal
Shell, two extensions use titanium alloy.
4. a kind of probe apparatus for receiving rock sample acoustic emission signal according to claim 2, which is characterized in that the metal
Two extensions of shell are flaky.
5. a kind of mounting structure of the probe apparatus of any reception rock sample acoustic emission signal of claim 1-4, probe dress
It sets and is covered on cylindrical rock sample by extension spring, the extension spring is in tensional state, the piezoelectricity pottery of the probe apparatus
Porcelain coupling surface, the metal shell two extensions be bonded respectively with the periphery of cylindrical rock sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821564710.7U CN208736833U (en) | 2018-09-25 | 2018-09-25 | A kind of probe apparatus and its mounting structure receiving rock sample acoustic emission signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821564710.7U CN208736833U (en) | 2018-09-25 | 2018-09-25 | A kind of probe apparatus and its mounting structure receiving rock sample acoustic emission signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208736833U true CN208736833U (en) | 2019-04-12 |
Family
ID=66034531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821564710.7U Expired - Fee Related CN208736833U (en) | 2018-09-25 | 2018-09-25 | A kind of probe apparatus and its mounting structure receiving rock sample acoustic emission signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208736833U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110044702A (en) * | 2019-05-05 | 2019-07-23 | 中国人民解放军陆军装甲兵学院 | Vacuum sound emission nondestructive detection system |
-
2018
- 2018-09-25 CN CN201821564710.7U patent/CN208736833U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110044702A (en) * | 2019-05-05 | 2019-07-23 | 中国人民解放军陆军装甲兵学院 | Vacuum sound emission nondestructive detection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190412 Termination date: 20200925 |
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| CF01 | Termination of patent right due to non-payment of annual fee |