CN110632182B - Device and method for fixing acoustic emission probe or ultrasonic probe - Google Patents
Device and method for fixing acoustic emission probe or ultrasonic probe Download PDFInfo
- Publication number
- CN110632182B CN110632182B CN201911003888.3A CN201911003888A CN110632182B CN 110632182 B CN110632182 B CN 110632182B CN 201911003888 A CN201911003888 A CN 201911003888A CN 110632182 B CN110632182 B CN 110632182B
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- base
- sensor
- connecting rod
- top cover
- acoustic emission
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/14—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object using acoustic emission techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/223—Supports, positioning or alignment in fixed situation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0232—Glass, ceramics, concrete or stone
Abstract
The invention discloses a device and a method for fixing an acoustic emission probe or an ultrasonic probe, wherein the device comprises a top cover, a base, a telescopic connecting rod, a sponge strip, a signal line connector and a scale pointer; the top cover is connected with the bottom plate through a built-in thread, and the top cover and the base are made of steel with compressive strength, so that the top cover and the base can bear enough pressure without deformation and damage; one end of the connecting rod is connected with the sensor, the other end of the connecting rod is connected with the scale pointer, and the position of the sensor can be adjusted by adjusting the connecting rod; four sensor tracks are arranged on the base, and the sensors can move on the sensor tracks. The acoustic emission probe or the ultrasonic probe can be quickly fixed on a test piece, and the test piece can be directly used for the next test piece without being disassembled or assembled after being detected, so that the test efficiency is greatly improved; through connecting rod and annular scale, can realize the accurate positioning of sensor.
Description
Technical Field
The invention relates to a device and a method for fixing an acoustic emission probe or an ultrasonic probe, in particular to a simple fixing device and a method capable of accurately positioning the acoustic emission probe, and belongs to the technical field of rock mechanics tests.
Background
Rock mechanics tests are one of the important methods for exploring rock properties, and in recent years, in order to research the evolution law of damage cracks of rocks, acoustic emission detection technology is applied to the rock mechanics tests.
The internal part of the test piece can be damaged and cracked under the action of external force, and the rock can emit elastic waves while being damaged and cracked, and the phenomenon is called as acoustic emission phenomenon. This phenomenon can be detected by an acoustic emission detection system.
The key of acoustic emission detection is that the probe is accurately installed on the surface of an object, and in the actual operation process, most people fix the acoustic emission probe on the surface of the object by using glue or rubber bands.
Disclosure of Invention
The invention aims to provide a device and a method for fixing an acoustic emission probe or an ultrasonic probe, which can be used by researchers to quickly fix a sensor and realize accurate positioning in the test process of uniaxial compression or triaxial compression of a sample.
The invention provides a device for fixing an acoustic emission probe or an ultrasonic probe, which comprises a top cover, a base, a telescopic connecting rod, a signal line connector and a scale pointer, wherein the top cover is provided with a plurality of through holes;
the top cover and the base are buckled together to form a cylinder, and other components are positioned in the cylinder; an annular dial gauge is arranged on the outer surface of the base; the top cover is connected with the bottom plate through a built-in thread, and the top cover and the base are made of steel materials, so that the top cover and the base can bear enough pressure without deformation and damage; the base is provided with four sensor tracks, and the sensors are arranged on the sensor tracks and can move on the sensor tracks; one end of the connecting rod is connected with the sensor, a scale pointer is welded at the center above the other end of the connecting rod, and the position of the sensor can be adjusted by moving the connecting rod on a horizontal plane; and a signal wire connector is arranged at the outer side end of the sensor track.
Preferably, the base is provided with two sensor tracks, the two sensor tracks are arranged on the base in a cross manner to form four sensor tracks, a sensor can be arranged at the center of the intersection of the two sensor tracks, and 1-5 sensors can be simultaneously fixed on one base.
Preferably, the outer side of the base is provided with an annular dial gauge, so that the sensor can be accurately positioned.
Preferably, the connecting rod is a telescopic connecting rod, the length of which can be adjusted according to the position of the connecting rod, so as to save space.
Preferably, the upper part of the connecting rod is connected with a scale pointer, and the sensor is accurately positioned by adjusting the position of the connecting rod.
Preferably, the sensor track is a U-shaped groove, and sponge strips are arranged on two sides of the U-shaped groove, so that the sensor track can be fixed while abrasion in the moving process of the sensor is reduced.
The invention provides a fixing method of the sensor, which is implemented by adopting a fixing device of the sensor and comprises the following steps:
a. determining the number and the positions of the installed sensors according to the test requirements;
b. the base is connected with the top cover through threads, the base is rotated anticlockwise, and the connection between the base and the top cover is released;
c. the sensor is accurately positioned by moving the connecting rod and utilizing the annular dial gauge;
d. rotating the base clockwise to tightly connect the base and the top cover;
e. polishing the position to be mounted of the probe on the surface of the test piece by using abrasive paper to ensure that the surface is smooth, and marking;
f. and smearing the couplant on the contact part of the base and the surface of the test piece, and contacting the center of the base with the center of the test piece.
The invention has the beneficial effects that:
the acoustic emission probe or the ultrasonic probe can be quickly fixed on a test piece, and the test piece can be directly used for the next test piece without being disassembled or assembled after being detected, so that the test efficiency is greatly improved; through connecting rod and annular scale, can realize the accurate positioning of sensor.
Drawings
FIG. 1 is a schematic view of the present invention as a whole;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a schematic view of the top cover structure of the present invention flipped 180;
FIG. 4 is a schematic view of the construction of the base and its connecting parts of the present invention;
FIG. 5 is a schematic view of a connecting rod construction of the present invention;
FIG. 6 is a schematic view of the overall structure of the cylindrical test piece of the present invention;
FIG. 7 is an exploded view of the structure of the present invention for a cylindrical test piece;
in the figure: 1-top cover; 2-ring scale; 3-a sensor; 4, internally arranging threads; 5, a base; 6-signal line connector; 7-a connecting rod; 8, sponge strips; 9-a sensor track; 10-a scale pointer; 11-cylindrical test piece.
Detailed Description
The present invention is further illustrated by, but is not limited to, the following examples.
Example 1:
as shown in fig. 1 to 7, a device for fixing an acoustic emission probe or an ultrasonic probe comprises a top cover 1, a base 5, a connecting rod 7, a signal line connector 6 and a scale pointer 10;
the top cover 1 and the base 5 are buckled together to form a cylinder, and other components are positioned inside the cylinder; an annular dial gauge 2 is arranged on the outer surface of the base 5; the top cover 1 is connected with the base through the built-in thread 4, and the top cover 1 and the base 5 are made of steel materials, so that the steel materials can bear enough pressure without deformation and damage; four sensor tracks are arranged on the base 5, and the sensor 3 is arranged on the sensor track 9 and can move on the sensor track 9; one end of the connecting rod 7 is connected with the sensor 3, a scale pointer 10 is connected above the other end of the connecting rod 7, and the position of the sensor 3 can be adjusted by moving the connecting rod 7 on the horizontal plane; a signal line connector 6 is provided at the outer end of the sensor track 9.
Preferably, the base 5 is provided with two sensor tracks 9, the two sensor tracks 9 are arranged on the base 5 in a cross manner to form four sensor tracks 9, and the center of the intersection of the two sensor tracks 9 can be provided with one sensor 6, so that 1-5 sensors can be fixed on one base at the same time. As shown in fig. 4.
Preferably, the annular dial gauge 2 is arranged outside the base 5, so that the sensor can be accurately positioned. As shown in fig. 3.
Preferably, the connecting rod 7 is a telescopic connecting rod, the length of which can be adjusted according to the position of the connecting rod, so as to save space.
Preferably, the connecting rod 7 is connected with a scale pointer 10 above, and the sensor is accurately positioned by adjusting the position of the connecting rod. As shown in fig. 5.
Preferably, the sensor track 9 is a U-shaped groove, and sponge strips 8 are arranged on two sides of the U-shaped groove, so that the sensor track can be fixed while abrasion in the moving process of the sensor is reduced.
The invention provides a fixing method of the sensor, which is implemented by adopting a fixing device of the sensor and comprises the following steps:
a. determining the number and the positions of the installed sensors according to the test requirements;
b. the base is connected with the top cover through threads, the base is rotated anticlockwise, and the connection between the base and the top cover is released;
c. the sensor is accurately positioned by moving the connecting rod and utilizing the annular dial gauge;
d. rotating the base clockwise to tightly connect the base and the top cover;
e. polishing the position to be mounted of the probe on the surface of the test piece by using abrasive paper to ensure that the surface is smooth, and marking;
f. and (3) coating vaseline on the contact part of the base and the surface of the test piece, and contacting the center of the base with the center of the test piece.
FIGS. 6 and 7 are schematic views of the structure of a cylindrical test piece according to the present invention; the cylindrical test piece is provided with a plurality of sensor probes, and the probes are fixed by the device.
The above is an embodiment of the present invention, and it should be noted that the present invention is not limited to the above embodiment, and may be simply modified according to the substance of the present invention, which all fall within the technical scope of the present invention.
Claims (5)
1. A device for fixing an acoustic emission probe or an ultrasonic probe, characterized in that: comprises a top cover, a base, a connecting rod, a signal line connector and a scale pointer;
the top cover and the base are buckled together to form a cylinder, and other components are positioned in the cylinder;
an annular dial gauge is arranged on the outer surface of the base, so that the sensor can be accurately positioned;
the top cover is connected with the bottom plate through a built-in thread, and the top cover and the base are made of steel materials, so that the top cover and the base can bear enough pressure without deformation and damage; a sensor track is arranged on the base, and the sensor is arranged on the sensor track and can move on the sensor track; one end of the connecting rod is connected with the sensor, a scale pointer is arranged above the other end of the connecting rod, and the position of the sensor is adjusted by moving the connecting rod on a horizontal plane; a signal wire connector is arranged at the outer side end of the sensor track;
the base is provided with two sensor tracks which are arranged on the base in a cross manner to form four sensor tracks, a sensor can be arranged at the center of the intersection of the two sensor tracks, and 1-5 sensors can be fixed on one base at the same time.
2. The apparatus for fixing an acoustic emission probe or an ultrasonic probe according to claim 1, wherein: the connecting rod is telescopic connecting rod, adjusts its length according to the position of connecting rod to save space.
3. The apparatus for fixing an acoustic emission probe or an ultrasonic probe according to claim 1, wherein: the welding of connecting rod top center department has the scale pointer, fixes a position the sensor accurately through the position of adjusting the connecting rod.
4. The apparatus for fixing an acoustic emission probe or an ultrasonic probe according to claim 1, wherein: the sensor track is U type groove, and the sponge strip is arranged to the both sides in U type groove, has still played the fixed action when reducing sensor removal in-process wearing and tearing.
5. A method of fixing an acoustic emission probe or an ultrasonic probe, which employs the apparatus for fixing an acoustic emission probe or an ultrasonic probe according to any one of claims 1 to 4, characterized in that: the method comprises the following steps:
a. determining the number and the positions of the installed sensors according to the test requirements;
b. the base is connected with the top cover through threads, the base is rotated anticlockwise, and the connection between the base and the top cover is released;
c. the sensor is accurately positioned by moving the connecting rod and utilizing the annular dial gauge;
d. rotating the base clockwise to tightly connect the base and the top cover;
e. polishing the position to be mounted of the probe on the surface of the test piece by using abrasive paper to ensure that the surface is smooth, and marking;
f. and smearing the couplant on the contact part of the base and the surface of the test piece, and contacting the center of the base with the center of the test piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911003888.3A CN110632182B (en) | 2019-10-22 | 2019-10-22 | Device and method for fixing acoustic emission probe or ultrasonic probe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911003888.3A CN110632182B (en) | 2019-10-22 | 2019-10-22 | Device and method for fixing acoustic emission probe or ultrasonic probe |
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| Publication Number | Publication Date |
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| CN110632182A CN110632182A (en) | 2019-12-31 |
| CN110632182B true CN110632182B (en) | 2022-03-29 |
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| CN201911003888.3A Active CN110632182B (en) | 2019-10-22 | 2019-10-22 | Device and method for fixing acoustic emission probe or ultrasonic probe |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112665979A (en) * | 2020-12-15 | 2021-04-16 | 青岛理工大学 | Acoustic emission sensor fixing and sealing device for rock compression test and using method thereof |
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| JP2002365030A (en) * | 2001-06-12 | 2002-12-18 | Kansai Electric Power Co Inc:The | Measuring apparatus for thickness of scale on inner surface of tube |
| CN102759577A (en) * | 2012-07-25 | 2012-10-31 | 中国计量学院 | Phased ultrasonic automatic detecting and positioning system for trunnion ring weld of steel ladle |
| CN203069441U (en) * | 2013-02-01 | 2013-07-17 | 中国科学院武汉岩土力学研究所 | Pressure head applied to conventional triaxial test acoustic emission test for rocks |
| CN103412054A (en) * | 2013-07-26 | 2013-11-27 | 中国矿业大学 | Sensor fixing test rack for uniaxial compression sound emission test of coal petrography and application method of same |
| CN104076093A (en) * | 2013-03-31 | 2014-10-01 | 常州超声电子有限公司 | Measurable ultrasonic probe adjusting seat |
| CN204086217U (en) * | 2014-04-25 | 2015-01-07 | 中国科学院武汉岩土力学研究所 | The device of a kind of acoustic wave of rock, acoustic emission synchro measure |
| CN108445085A (en) * | 2018-06-04 | 2018-08-24 | 东北大学 | A kind of the acoustic emission probe accurate-location device and application method of Rock Under Uniaxial Compression experiment |
| CN209215296U (en) * | 2018-09-18 | 2019-08-06 | 湖南工业大学 | Triaxial test acoustic emission probe fixes device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203148901U (en) * | 2013-03-31 | 2013-08-21 | 常州超声电子有限公司 | Measurable ultrasonic probe regulation seat |
| EP3315074B1 (en) * | 2016-10-28 | 2020-04-29 | Echosens | Probe for transient elastography |
-
2019
- 2019-10-22 CN CN201911003888.3A patent/CN110632182B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002365030A (en) * | 2001-06-12 | 2002-12-18 | Kansai Electric Power Co Inc:The | Measuring apparatus for thickness of scale on inner surface of tube |
| CN102759577A (en) * | 2012-07-25 | 2012-10-31 | 中国计量学院 | Phased ultrasonic automatic detecting and positioning system for trunnion ring weld of steel ladle |
| CN203069441U (en) * | 2013-02-01 | 2013-07-17 | 中国科学院武汉岩土力学研究所 | Pressure head applied to conventional triaxial test acoustic emission test for rocks |
| CN104076093A (en) * | 2013-03-31 | 2014-10-01 | 常州超声电子有限公司 | Measurable ultrasonic probe adjusting seat |
| CN103412054A (en) * | 2013-07-26 | 2013-11-27 | 中国矿业大学 | Sensor fixing test rack for uniaxial compression sound emission test of coal petrography and application method of same |
| CN204086217U (en) * | 2014-04-25 | 2015-01-07 | 中国科学院武汉岩土力学研究所 | The device of a kind of acoustic wave of rock, acoustic emission synchro measure |
| CN108445085A (en) * | 2018-06-04 | 2018-08-24 | 东北大学 | A kind of the acoustic emission probe accurate-location device and application method of Rock Under Uniaxial Compression experiment |
| CN209215296U (en) * | 2018-09-18 | 2019-08-06 | 湖南工业大学 | Triaxial test acoustic emission probe fixes device |
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| CN110632182A (en) | 2019-12-31 |
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