CN2630849Y - Three-axial acoustic emission probe - Google Patents
Three-axial acoustic emission probe Download PDFInfo
- Publication number
- CN2630849Y CN2630849Y CN 03254835 CN03254835U CN2630849Y CN 2630849 Y CN2630849 Y CN 2630849Y CN 03254835 CN03254835 CN 03254835 CN 03254835 U CN03254835 U CN 03254835U CN 2630849 Y CN2630849 Y CN 2630849Y
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- CN
- China
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- acoustic emission
- axial
- housing
- casing
- unidirectional
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- Expired - Fee Related
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model involves a tri-axial probe of acoustic emission signals for detecting rock or big volume concrete. The utility model includes a casing (10), three unidirectional accelerometers (1) arranged in the casing (10), a preamplifier (3) etc, the input end of the preamplifier (3) is connected with the unidirectional accelerometer (1) through a low noise signal cable (2), the output end of the preamplifier (3) is connected with a power supply and a signal line (4), the signal is derived from a cable (5), a tri-axial structure frame (8) is arranged in the casing (10), the structure frame (8) is three orthogonal planes along X, Y, Z axis, the three planes is adhesively connected respectively with an unidirectional accelerometer (1), a positioning cushion block (7) is positioned under the accelerometer of Z axis (1), packaging of the interspaces of the casing (10) is completed by a casting (9). The probe structure of acoustic emission signals can receive tri-axial acoustic emission signals, estimate the stability of structures accurately and completely, and location of acoustic emission source (dangerous source) is achieved.
Description
Affiliated technical field
The utility model belongs to structural safety detection technique field, particularly a kind of probe that detects three axial acoustic emission signals in rock mass or the mass concrete.
Background technology
Rock mass or mass concrete are accompanied by the generation of acoustic emission phenomenon (stress wave release) in stressed rupture process, acoustic emission detection detects these stress waves with acoustic emission probe (and other follow-up instrument) exactly, with this as rock mass or large volume concrete structural estimation of stability index.Unidirectional acoustic emission probe can only be surveyed rock mass or the inner a certain direction acoustic emission signal component of xoncrete structure, can not detect the defective of structure all sidedly.The three-dimensional acceleration transducer is to be applied to component surface, measures the member vibration characteristics, and sensitivity is lower.Acoustic emission detection in the structure requires the transducer sensitivity height, and the signal of its detection belongs to little stress wave signal that shakes, and detection probe is embedded in the structure or is installed in the interior boring of structure, detects its bulk wave signal.
Summary of the invention
The purpose of this utility model provides a kind of three axial acoustic emissions probe, can detect acoustic emission signal three axial components that reach the probe position, more accurate in view of the above, the stability of evaluation structure all sidedly, and can carry out acoustic emission source (dangerous matter sources) location.
Technical solution of the present utility model is: three axial acoustic emission probes, by housing, place three unidirectional acceleration transducers in the housing, prime amplifiers etc. partly constitute, the input end of prime amplifier is connected with acceleration transducer by the low noise signal cable, the output terminal of prime amplifier is connected with power supply and signal wire, by cable signal is derived, three axial structure framves are set in housing, the structure frame is along X, Y, three planes of Z axle quadrature, the bonding unidirectional acceleration transducer of difference on three planes, at Z spacer pad is set below acceleration transducer, the space in the housing is encapsulated by pour mass.This probe can detect three components of rock mass or the inner acoustic emission signal of mass concrete.
The beneficial effects of the utility model are: this acoustic emission sonde configuration can receive three axial acoustic emission signals, and probe integral body does not produce resonance and influences original signal.Shell and encapsulation pour mass, installing and locating cushion block material and tested structure material property are same or similar, and be little to the acoustic emission signal propagation effect, and simultaneously, the encapsulation mould material plays the effect of insulation, sealing.Prime amplifier places probe inner, can reduce the interference of outer bound pair signal.
Description of drawings
The vertical view of Fig. 1 three axial acoustic emission probes
The A-A cut-open view of Fig. 2 Fig. 1
1. unidirectional acceleration transducers among the figure, 2. low noise signal cable, 3. prime amplifier, 4. power supply and signal wire, 5. cable is 6. located resilient wing in the hole, 7. spacer pad, 8. three axial structure framves, 9. pour mass, 10. housing, 11. force bearing rings
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As Fig. 1, Fig. 2, three unidirectional acceleration transducers 1 are fixed in along on the three axial structure framves 8 of X, Y, Z axle quadrature, be installed in Z and guarantee that to the spacer pad 7 of acceleration transducer 1 below three sensors 1 place preposition and direction, the signal of each unidirectional acceleration transducer 1 is linked to each other by the input end of low noise signal cable 2 with prime amplifier 3, the output terminal of prime amplifier 3 is connected with power supply and signal wire 4, derive by cable 5 through amplifying signal, these internals place in the housing 10, and the space in the housing 10 is by pour mass 9 encapsulation.The both sides, upper and lower of housing 10 peripheries are provided with location resilient wing 6 in the hole, are to play placed in the middle positioning action in the installation process in order to pop one's head in boring.On the top of housing 10 force bearing ring 11 being set, is to be convenient to suspension cord when for deep hole probe being installed.
Claims (2)
1, three axial acoustic emission probes, by housing (10), place three the unidirectional acceleration transducers (1) in the housing (10), part such as prime amplifier (3) constitutes, the input end of prime amplifier (3) is connected with acceleration transducer (1) by low noise signal cable (2), the output terminal of prime amplifier (3) is connected with power supply and signal wire (4), by cable (5) signal is derived, it is characterized in that in housing (10), being provided with three axial structure framves (8), structure frame (8) is along X, Y, three planes of Z axle quadrature, a difference bonding unidirectional acceleration transducer (1) on three planes, to the below of acceleration transducer (1) spacer pad (7) is set at Z, the space in the housing (10) is encapsulated by pour mass (9).
2, as claimed in claim 1 three axial acoustic emissions probe is characterized in that being provided with in the peripheral both sides, upper and lower of housing (10) and locatees resilient wing (6) in the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03254835 CN2630849Y (en) | 2003-07-15 | 2003-07-15 | Three-axial acoustic emission probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03254835 CN2630849Y (en) | 2003-07-15 | 2003-07-15 | Three-axial acoustic emission probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2630849Y true CN2630849Y (en) | 2004-08-04 |
Family
ID=34294707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03254835 Expired - Fee Related CN2630849Y (en) | 2003-07-15 | 2003-07-15 | Three-axial acoustic emission probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2630849Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813588A (en) * | 2010-04-13 | 2010-08-25 | 中国科学院武汉岩土力学研究所 | Pressure head device for loading normal triaxial rheology and testing acoustic emission under high confining pressure |
| CN103149081A (en) * | 2013-02-01 | 2013-06-12 | 中国科学院武汉岩土力学研究所 | Squeeze head used for rock conventional triaxial test acoustic emission test |
| CN103336058A (en) * | 2013-06-13 | 2013-10-02 | 爱德森（厦门）电子有限公司 | Acoustic push-pull type excitation-receiving detection method |
| RU2550314C2 (en) * | 2010-04-06 | 2015-05-10 | Варель Ероп С.А.С. | Testing of rigidity based on acoustic emission for pdc, pcbn or other hard or superhard materials |
| CN105181808A (en) * | 2015-10-10 | 2015-12-23 | 济南大学 | Front-emitting integrated sound emitting sensor and preparation method thereof |
-
2003
- 2003-07-15 CN CN 03254835 patent/CN2630849Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2550314C2 (en) * | 2010-04-06 | 2015-05-10 | Варель Ероп С.А.С. | Testing of rigidity based on acoustic emission for pdc, pcbn or other hard or superhard materials |
| CN101813588A (en) * | 2010-04-13 | 2010-08-25 | 中国科学院武汉岩土力学研究所 | Pressure head device for loading normal triaxial rheology and testing acoustic emission under high confining pressure |
| CN103149081A (en) * | 2013-02-01 | 2013-06-12 | 中国科学院武汉岩土力学研究所 | Squeeze head used for rock conventional triaxial test acoustic emission test |
| CN103149081B (en) * | 2013-02-01 | 2015-01-07 | 中国科学院武汉岩土力学研究所 | Squeeze head used for rock conventional triaxial test acoustic emission test |
| CN103336058A (en) * | 2013-06-13 | 2013-10-02 | 爱德森（厦门）电子有限公司 | Acoustic push-pull type excitation-receiving detection method |
| CN105181808A (en) * | 2015-10-10 | 2015-12-23 | 济南大学 | Front-emitting integrated sound emitting sensor and preparation method thereof |
| CN105181808B (en) * | 2015-10-10 | 2017-03-29 | 济南大学 | The preparation method of integrated acoustic emission sensor is put before a kind of |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHONGGANG (GROUP) WUHAN SAFE ENVIRONMENTAL PROTECT Free format text: FORMER NAME: ZHONGGANG (GROUP) WUHAN SAFE ENVIRONMENTAL PROTECTION RESEARCH INSTITUTE Owner name: ZHONGGANG (GROUP) WUHAN SAFE ENVIRONMENTAL PROTECT Free format text: FORMER NAME: WUHAN SAFE + ENVIRONMENTAL PROTECTION RESEARCH INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 430081 No. 1244 Heping Avenue, Qingshan District, Hubei, Wuhan Patentee after: SINOSTEEL CORPORATION WUHAN SAFETY AND ENVIRONMENTAL PROTECTION RESEARCH INSTITUTE Co.,Ltd. Address before: 430081 No. 1244 Heping Avenue, Qingshan District, Hubei, Wuhan Patentee before: Sinosteel Wuhan Safety & Environmental Protection Research Institute Address after: 430081 No. 1244 Heping Avenue, Qingshan District, Hubei, Wuhan Patentee after: Sinosteel Wuhan Safety & Environmental Protection Research Institute Address before: 430081 No. 1244 Heping Avenue, Qingshan District, Hubei, Wuhan Patentee before: WUHAN SAFETY ENVIRONMENTAL PRO |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040804 Termination date: 20110715 |