CN105424814A - Triggering probe of ultrasonic longitudinal wave and transverse wave test and preparation method of triggering probe - Google Patents
Triggering probe of ultrasonic longitudinal wave and transverse wave test and preparation method of triggering probe Download PDFInfo
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- CN105424814A CN105424814A CN201510955473.1A CN201510955473A CN105424814A CN 105424814 A CN105424814 A CN 105424814A CN 201510955473 A CN201510955473 A CN 201510955473A CN 105424814 A CN105424814 A CN 105424814A
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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
- G01N29/24—Probes
- G01N29/2437—Piezoelectric probes
- G01N29/245—Ceramic probes, e.g. lead zirconate titanate [PZT] probes
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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
- G01N2291/04—Wave modes and trajectories
- G01N2291/042—Wave modes
- G01N2291/0421—Longitudinal waves
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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
- G01N2291/04—Wave modes and trajectories
- G01N2291/042—Wave modes
- G01N2291/0422—Shear waves, transverse waves, horizontally polarised waves
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- Transducers For Ultrasonic Waves (AREA)
Abstract
The invention discloses a triggering probe of an ultrasonic longitudinal wave and transverse wave test and a preparation method of the triggering probe, the triggering probe comprises first mass blocks, a shock excitation part, second mass blocks, third mass blocks, a fixed piece, outer insulating layers and leads; the first mass blocks, the shock excitation part, the second mass blocks and the third mass blocks are in sequential connection from top to bottom and are fixed by the fixed piece; the leads are led from the shock excitation part; the outer insulating layers are arranged at the periphery of the shock excitation part and the coverage is greater than the outer surface of the shock excitation part; each of the lower ends of the third mass blocks is of a cone of which the vertex is downward, and the vertex of the cone is a launch contact. The triggering probe disclosed by the invention adopts a point contact type structure, compared with the conventional surface contact of the triggering probe, the advantages of a point contact mode is obvious. On one hand, the energy of the longitudinal wave and transverse wave is maximized by a mode of changing triggering direction; on the other hand, the point contact mode can enable the triggering energy to be more concentrated, and the energy focusing effect is realized.
Description
Technical field
The present invention relates to ultrasound wave compressional wave and transverse wave testing field, particularly relate to a kind of can be used for work China Democratic National Construction Association Non-Destructive Testing, hydroelectric project rock mass test, the test block in laboratory, the ultrasound wave compressional wave of test specimen test and transverse wave testing percussion probe can be used for again.
Background technology
At present, the percussion probe adopted when carrying out compressional wave and transverse wave testing is all the face way of contact, due to percussion probe contacts face with hit the medium that shakes can not achieving full-area contact, certain error is just there is in such one side when calculating the distance between percussion and reception, have an impact to the accuracy of the elastic parameter calculated subsequently, particularly achievement is tested to little test block (or test specimen) in laboratory affects larger; During the percussion of the opposing party's plane-plane contact, because percussion direction is fixed, for acquisition compressional wave and shear wave two parameters need adopt P-wave And S receiving transducer respectively, and the compressional wave of percussion and shear wave energy can not maximize simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of can be used for work China Democratic National Construction Association Non-Destructive Testing, hydroelectric project rock mass test, the test block in laboratory, the ultrasound wave compressional wave of test specimen test and transverse wave testing percussion probe and manufacture method thereof can be used for again, thus solve in prior art the foregoing problems existed.
To achieve these goals, the technical solution used in the present invention is as follows:
Ultrasound wave compressional wave and a transverse wave testing percussion probe, comprise the first mass, exciting part, the second mass, the 3rd mass, fixture, external insulation layer and lead-in wire; Described first mass, described exciting part, described second mass and described 3rd mass are linked in sequence from top to bottom and are fixed by described fixture; Described lead-in wire is drawn from described exciting part; Described external insulation layer be arranged at the periphery of described exciting part and wide coverage in the outside surface of described exciting part; The lower end of described 3rd mass is the downward cone in summit, and the summit of described cone is launch latch.
Preferably, described exciting part forms primarily of two groups of four piezoelectric ceramics ring plates, and described two groups of four piezoelectric ceramics ring plates are the first piezoelectric ceramics ring plate, the second piezoelectric ceramics ring plate, the 3rd piezoelectric ceramics ring plate and the 4th piezoelectric ceramics ring plate respectively; Described first piezoelectric ceramics ring plate, described second piezoelectric ceramics ring plate, described 3rd piezoelectric ceramics ring plate and described 4th piezoelectric ceramics ring plate superpose from top to bottom successively; Electrode slice is provided with between every two piezoelectric ceramics ring plates.
Preferably, the electrode slice be arranged between the positive pole of described first piezoelectric ceramics ring plate and the positive pole of described second piezoelectric ceramics ring plate is the first electrode slice, the electrode slice be arranged between the positive pole of described 3rd piezoelectric ceramics ring plate and the positive pole of described 4th piezoelectric ceramics ring plate is the 3rd electrode slice, and the electrode slice be arranged between the negative pole of described second piezoelectric ceramics ring plate and the negative pole of described 3rd piezoelectric ceramics ring plate is the second electrode slice; The negative pole of described first piezoelectric ceramics ring plate is connected with described first mass, and the negative pole of described 4th piezoelectric ceramics ring plate is connected with described second mass; Described second electrode slice is connected with negative wire, and described first electrode slice is all connected with positive wire with described 3rd electrode slice.
Preferably, the annular diameters of described two groups of four piezoelectric ceramics ring plates is greater than the diameter of described fixture, and forms cavity between described two groups of four piezoelectric ceramics ring plate inner ring sides and described fixture.
Preferably, described fixture is bolt, be provided with the through hole that can hold described bolt and pass in the middle of described first mass, in the middle of described second quality, be provided with the through hole that can hold described bolt and pass, in the middle of described 3rd mass, be provided with the screw coordinated with described bolt.
Preferably, described external insulation layer covers whole described exciting part and part first mass and part second mass, and described lead-in wire is drawn between described external insulation layer and described first mass respectively.
Preferably, described first mass is carbon steel material, and described second mass is aluminium material, and described 3rd mass is carbon steel material; The quality of described first mass is greater than the quality sum of described second mass and the 3rd mass.
Preferably, the cone angle of described cone is 45-60 degree.
Preferably, described bolt is metal material, and described external insulation layer is electro-insulating rubber material.
The manufacture method of described ultrasound wave compressional wave and transverse wave testing percussion probe, comprises the following steps:
By the first mass, first piezoelectric ceramics ring plate, first electrode slice, second piezoelectric ceramics ring plate, second electrode slice, 3rd piezoelectric ceramics ring plate, 3rd electrode slice, 4th piezoelectric ceramics ring plate, second mass to be set in successively on bolt and to form cavity between each described piezoelectric ceramics ring plate and described bolt, then described bolt and described 3rd mass are fastened by spiral shell padlock, and then make the first mass, first piezoelectric ceramics ring plate, first electrode slice, second piezoelectric ceramics ring plate, second electrode slice, 3rd piezoelectric ceramics ring plate, 3rd electrode slice, 4th piezoelectric ceramics ring plate, second mass, 3rd mass is closely fixedly connected with successively, the faying face of wherein each parts all scribbles silicone oil coupling, and the negative pole of described first piezoelectric ceramics ring plate is connected with described first mass, the positive pole of described first piezoelectric ceramics ring plate is connected with the first electrode slice, the positive pole of described second piezoelectric ceramics ring plate is connected with the first electrode slice, the negative pole of described second piezoelectric ceramics ring plate is connected with the second electrode slice, the negative pole of described 3rd piezoelectric ceramics ring plate is connected with the second electrode slice, the positive pole of described 3rd piezoelectric ceramics ring plate is connected with the 3rd electrode slice, the positive pole of described 4th piezoelectric ceramics ring plate is connected with described 3rd electrode slice, the negative pole of described 4th piezoelectric ceramics ring plate is connected with described second mass, on described second electrode slice, negative wire is welded after being fastenedly connected, described negative wire conducts electricity with the first mass, described bolt, described second mass and described 3rd mass simultaneously and is connected, described first electrode slice and described 3rd electrode slice weld positive wire, last sheathed external insulation layer, described external insulation layer covers all piezoelectric ceramics ring plates and electrode slice, cover the part of the first mass and the part of the second mass simultaneously, described positive wire and described negative wire are drawn between described first mass and described external insulation layer.
The invention has the beneficial effects as follows:
Percussion probe of the present invention is ultrasound wave compressional wave and transverse wave testing percussion probe, and probe of the present invention adopts point contact type structure, and compared to the face contact of traditional percussion probe, point cantact mode is with the obvious advantage.On the one hand by changing the mode in percussion direction, compressional wave or shear wave energy is allowed to maximize; On the other hand, point contact type more can allow firing power concentrate, and has Voice segment effect.Therefore greatly test error can be reduced.The rock mass test of the Non-Destructive Testing of work China Democratic National Construction Association, hydroelectric project can be used for, the test block in laboratory, the test of test specimen can be used for again.
Accompanying drawing explanation
Fig. 1 is the structural representation of ultrasound wave compressional wave of the present invention and transverse wave testing percussion probe;
Wherein: 1---negative wire; 2---bolt; 3---negative wire; 4---first mass; 5---external insulation layer; 6---first piezoelectric ceramics ring plate; 7---second piezoelectric ceramics ring plate; 8---the 3rd piezoelectric ceramics ring plate; 9---the 4th piezoelectric ceramics ring plate; 10---second mass; 11---the 3rd mass; 12---launch latch; 13---cavity.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the present invention is further elaborated.Should be appreciated that embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention discloses a kind of ultrasound wave compressional wave and transverse wave testing percussion probe as described in Figure 1, comprise the first mass, exciting part, the second mass, the 3rd mass, fixture, external insulation layer and lead-in wire; Described first mass, described exciting part, described second mass and described 3rd mass are linked in sequence from top to bottom and are fixed by described fixture; Described lead-in wire is drawn from described exciting part; Described external insulation layer be arranged at the periphery of described exciting part and wide coverage in the outside surface of described exciting part; The lower end of described 3rd mass is the downward cone in summit, and the summit of described cone is launch latch.The cone angle of described cone is preferably 45-60 degree in the present embodiment.Launch latch is the transmission point of mechanical vibrational energy.Described exciting part forms primarily of two groups of four piezoelectric ceramics ring plates, and described two groups of four piezoelectric ceramics ring plates are the first piezoelectric ceramics ring plate, the second piezoelectric ceramics ring plate, the 3rd piezoelectric ceramics ring plate and the 4th piezoelectric ceramics ring plate respectively; Described first piezoelectric ceramics ring plate, described second piezoelectric ceramics ring plate, described 3rd piezoelectric ceramics ring plate and described 4th piezoelectric ceramics ring plate superpose from top to bottom successively; Electrode slice is provided with between every two piezoelectric ceramics ring plates.The electrode slice be arranged between the positive pole of described first piezoelectric ceramics ring plate and the positive pole of described second piezoelectric ceramics ring plate is the first electrode slice, the electrode slice be arranged between the positive pole of described 3rd piezoelectric ceramics ring plate and the positive pole of described 4th piezoelectric ceramics ring plate is the 3rd electrode slice, and the electrode slice be arranged between the negative pole of described second piezoelectric ceramics ring plate and the negative pole of described 3rd piezoelectric ceramics ring plate is the second electrode slice; The negative pole of described first piezoelectric ceramics ring plate is connected with described first mass, and the negative pole of described 4th piezoelectric ceramics ring plate is connected with described second mass; Described second electrode slice is connected with negative wire, and described first electrode slice is all connected with positive wire with described 3rd electrode slice.High voltage pulse acts in exciting part and produces mechanical vibration.The annular diameters of described two groups of four piezoelectric ceramics ring plates is greater than the diameter of described fixture, and described two groups form cavity between four piezoelectric ceramics ring plate inner ring sides and described fixture.Described fixture is bolt, is provided with the through hole that can hold described bolt and pass in the middle of described first mass, is provided with the through hole that can hold described bolt and pass in the middle of described second quality, is provided with the screw coordinated with described bolt in the middle of described 3rd mass.Described external insulation layer covers whole described exciting part and part first mass and part second mass, and described lead-in wire is drawn between described external insulation layer and described first mass respectively.Described first mass is carbon steel material, and described second mass is aluminium material, and described 3rd mass is carbon steel material; The quality of described first mass is greater than the quality sum of described second mass and the 3rd mass.External insulation layer adopts insulating rubber material, and effect is the high pressure of insulating effect in piezoelectric ceramics ring plate, is convenient to apply external force to percussion probe.
Bolt selected by fixture, and employing metal material, play the effect the first mass of top carbon steel material, exciting part (piezoelectric ceramics ring plate group), lead-in wire, the second mass of aluminium material and the 3rd mass of bottom carbon steel material tightened together.First mass selects the carbon steel block of certain mass, to ensure that the mechanical vibrational energy produced by piezoelectric ceramics ring plate reflects going down by it.Negative wire and positive wire by external pulse high-voltage transmission to exciting part.Second mass selects aluminium, and quality is less, to ensure that the mechanical vibrational energy transmitted by top passes through and going down.3rd mass selects carbon steel material, and quality is very little, to ensure the mechanical vibrational energy going down transmitted by top.
The invention also discloses the manufacture method of above-mentioned ultrasound wave compressional wave and transverse wave testing percussion probe, comprise the following steps:
By the first mass, first piezoelectric ceramics ring plate, first electrode slice, second piezoelectric ceramics ring plate, second electrode slice, 3rd piezoelectric ceramics ring plate, 3rd electrode slice, 4th piezoelectric ceramics ring plate, second mass to be set in successively on bolt and to form cavity between each described piezoelectric ceramics ring plate and described bolt, then described bolt and described 3rd mass are fastened by spiral shell padlock, and then make the first mass, first piezoelectric ceramics ring plate, first electrode slice, second piezoelectric ceramics ring plate, second electrode slice, 3rd piezoelectric ceramics ring plate, 3rd electrode slice, 4th piezoelectric ceramics ring plate, second mass, 3rd mass is closely fixedly connected with successively, the faying face of wherein each parts all scribbles silicone oil coupling, and the negative pole of described first piezoelectric ceramics ring plate is connected with described first mass, the positive pole of described first piezoelectric ceramics ring plate is connected with the first electrode slice, the positive pole of described second piezoelectric ceramics ring plate is connected with the first electrode slice, the negative pole of described second piezoelectric ceramics ring plate is connected with the second electrode slice, the negative pole of described 3rd piezoelectric ceramics ring plate is connected with the second electrode slice, the positive pole of described 3rd piezoelectric ceramics ring plate is connected with the 3rd electrode slice, the positive pole of described 4th piezoelectric ceramics ring plate is connected with described 3rd electrode slice, the negative pole of described 4th piezoelectric ceramics ring plate is connected with described second mass, on described second electrode slice, negative wire is welded after being fastenedly connected, described negative wire conducts electricity with the first mass, described bolt, described second mass and described 3rd mass simultaneously and is connected, described first electrode slice and described 3rd electrode slice weld positive wire, last sheathed external insulation layer, described external insulation layer covers all piezoelectric ceramics ring plates and electrode slice, cover the part of the first mass and the part of the second mass simultaneously, described positive wire and described negative wire are drawn between described first mass and described external insulation layer.
By adopting technique scheme disclosed by the invention, obtain effect useful as follows:
Percussion probe of the present invention is ultrasound wave compressional wave and transverse wave testing percussion probe, and probe of the present invention adopts point contact type structure, and compared to the face contact of traditional percussion probe, point cantact mode is with the obvious advantage.On the one hand by changing the mode in percussion direction, compressional wave or shear wave energy is allowed to maximize; On the other hand, point contact type more can allow firing power concentrate, and has Voice segment effect.Therefore greatly test error can be reduced.The rock mass test of the Non-Destructive Testing of work China Democratic National Construction Association, hydroelectric project can be used for, the test block in laboratory, the test of test specimen can be used for again.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should look protection scope of the present invention.
Claims (10)
1. a ultrasound wave compressional wave and transverse wave testing percussion probe, is characterized in that, comprise the first mass, exciting part, the second mass, the 3rd mass, fixture, external insulation layer and lead-in wire; Described first mass, described exciting part, described second mass and described 3rd mass are linked in sequence from top to bottom and are fixed by described fixture; Described lead-in wire is drawn from described exciting part; Described external insulation layer be arranged at the periphery of described exciting part and wide coverage in the outside surface of described exciting part; The lower end of described 3rd mass is the downward cone in summit, and the summit of described cone is launch latch.
2. ultrasound wave compressional wave according to claim 1 and transverse wave testing percussion probe, it is characterized in that, described exciting part forms primarily of two groups of four piezoelectric ceramics ring plates, and described two groups of four piezoelectric ceramics ring plates are the first piezoelectric ceramics ring plate, the second piezoelectric ceramics ring plate, the 3rd piezoelectric ceramics ring plate and the 4th piezoelectric ceramics ring plate respectively; Described first piezoelectric ceramics ring plate, described second piezoelectric ceramics ring plate, described 3rd piezoelectric ceramics ring plate and described 4th piezoelectric ceramics ring plate superpose from top to bottom successively; Electrode slice is provided with between every two piezoelectric ceramics ring plates.
3. ultrasound wave compressional wave according to claim 2 and transverse wave testing percussion probe, it is characterized in that, the electrode slice be arranged between the positive pole of described first piezoelectric ceramics ring plate and the positive pole of described second piezoelectric ceramics ring plate is the first electrode slice, the electrode slice be arranged between the positive pole of described 3rd piezoelectric ceramics ring plate and the positive pole of described 4th piezoelectric ceramics ring plate is the 3rd electrode slice, and the electrode slice be arranged between the negative pole of described second piezoelectric ceramics ring plate and the negative pole of described 3rd piezoelectric ceramics ring plate is the second electrode slice; The negative pole of described first piezoelectric ceramics ring plate is connected with described first mass, and the negative pole of described 4th piezoelectric ceramics ring plate is connected with described second mass; Described second electrode slice is connected with negative wire, and described first electrode slice is all connected with positive wire with described 3rd electrode slice.
4. ultrasound wave compressional wave according to claim 2 and transverse wave testing percussion probe, it is characterized in that, the annular diameters of described two groups of four piezoelectric ceramics ring plates is greater than the diameter of described fixture, and described two groups form cavity between four piezoelectric ceramics ring plate inner ring sides and described fixture.
5. according to the arbitrary described ultrasound wave compressional wave of claim 1-4 and transverse wave testing percussion probe, it is characterized in that, described fixture is bolt, the through hole that can hold described bolt and pass is provided with in the middle of described first mass, be provided with the through hole that can hold described bolt and pass in the middle of described second mass, in the middle of described 3rd mass, be provided with the screw coordinated with described bolt.
6. according to the arbitrary described ultrasound wave compressional wave of claim 1-4 and transverse wave testing percussion probe, it is characterized in that, described external insulation layer covers whole described exciting part and part first mass and part second mass, and described lead-in wire is drawn between described external insulation layer and described first mass respectively.
7., according to the arbitrary described ultrasound wave compressional wave of claim 1-4 and transverse wave testing percussion probe, it is characterized in that, described first mass is carbon steel material, and described second mass is aluminium material, and described 3rd mass is carbon steel material; The quality of described first mass is greater than the quality sum of described second mass and the 3rd mass.
8., according to the arbitrary described ultrasound wave compressional wave of claim 1-4 and transverse wave testing percussion probe, it is characterized in that, the cone angle of described cone is 45-60 degree.
9. ultrasound wave compressional wave according to claim 5 and transverse wave testing percussion probe, it is characterized in that, described bolt is metal material, and described external insulation layer is electro-insulating rubber material.
10. the manufacture method of the arbitrary described ultrasound wave compressional wave of claim 1-9 and transverse wave testing percussion probe, is characterized in that, comprise the following steps:
By the first mass, first piezoelectric ceramics ring plate, first electrode slice, second piezoelectric ceramics ring plate, second electrode slice, 3rd piezoelectric ceramics ring plate, 3rd electrode slice, 4th piezoelectric ceramics ring plate, second mass to be set in successively on bolt and to form cavity between each described piezoelectric ceramics ring plate and described bolt, then described bolt and described 3rd mass are fastened by spiral shell padlock, and then make the first mass, first piezoelectric ceramics ring plate, first electrode slice, second piezoelectric ceramics ring plate, second electrode slice, 3rd piezoelectric ceramics ring plate, 3rd electrode slice, 4th piezoelectric ceramics ring plate, second mass, 3rd mass is closely fixedly connected with successively, the faying face of wherein each parts all scribbles silicone oil coupling, and the negative pole of described first piezoelectric ceramics ring plate is connected with described first mass, the positive pole of described first piezoelectric ceramics ring plate is connected with the first electrode slice, the positive pole of described second piezoelectric ceramics ring plate is connected with the first electrode slice, the negative pole of described second piezoelectric ceramics ring plate is connected with the second electrode slice, the negative pole of described 3rd piezoelectric ceramics ring plate is connected with the second electrode slice, the positive pole of described 3rd piezoelectric ceramics ring plate is connected with the 3rd electrode slice, the positive pole of described 4th piezoelectric ceramics ring plate is connected with described 3rd electrode slice, the negative pole of described 4th piezoelectric ceramics ring plate is connected with described second mass, on described second electrode slice, negative wire is welded after being fastenedly connected, described negative wire conducts electricity with the first mass, described bolt, described second mass and described 3rd mass simultaneously and is connected, described first electrode slice and described 3rd electrode slice weld positive wire, last sheathed external insulation layer, described external insulation layer covers all piezoelectric ceramics ring plates and electrode slice, cover the part of the first mass and the part of the second mass simultaneously, described positive wire and described negative wire are drawn between described first mass and described external insulation layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510955473.1A CN105424814A (en) | 2015-12-17 | 2015-12-17 | Triggering probe of ultrasonic longitudinal wave and transverse wave test and preparation method of triggering probe |
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| CN201510955473.1A CN105424814A (en) | 2015-12-17 | 2015-12-17 | Triggering probe of ultrasonic longitudinal wave and transverse wave test and preparation method of triggering probe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370731A (en) * | 2016-09-09 | 2017-02-01 | 中国石油大学(华东) | Ultrasonic longitudinal and shear wave-resistivity integrated type probe for rock physical experiment |
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| CN205229107U (en) * | 2015-12-17 | 2016-05-11 | 中国电建集团北京勘测设计研究院有限公司 | Ultrasonic wave compressional wave and shear wave test percussion probe |
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| CN87214610U (en) * | 1987-10-29 | 1988-11-09 | 清华大学 | Acoustic emission (ae) sensor |
| JP2006101204A (en) * | 2004-09-29 | 2006-04-13 | Fuji Photo Film Co Ltd | Acoustic matching layer and its manufacturing method, and ultrasonic transducer |
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Application publication date: 20160323 |