CN105737771B - A kind of effective ultrasonic wave thickness measuring probe of metal and the effective ultrasonic thickness measurement method of metal - Google Patents
A kind of effective ultrasonic wave thickness measuring probe of metal and the effective ultrasonic thickness measurement method of metal Download PDFInfo
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- CN105737771B CN105737771B CN201610067060.4A CN201610067060A CN105737771B CN 105737771 B CN105737771 B CN 105737771B CN 201610067060 A CN201610067060 A CN 201610067060A CN 105737771 B CN105737771 B CN 105737771B
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- ultrasonic wave
- thickness measuring
- metal
- voussoir
- measuring probe
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
- G01B17/02—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring thickness
Abstract
The present invention provides the effective ultrasonic wave thickness measuring probe of metal, and the chip of multiple centripetal arrangements is provided in probe.Compared with prior art, probe provided by the invention greatly reduces the number of probe movement during metal tube thickness measure, and cost of manufacture cheap voussoir is only needed to change when measuring the metal tube of different size, without replacing entire probe, have the advantages that measurement efficiency is high, measurement cost is low, it can be widely applied to water screen tube inner wall corrosion, drain pipe elbow interior wall, which washes away to be thinned, to be waited in measurement.
Description
Technical field
The present invention relates to a kind of effective ultrasonic wave thickness measuring probe of metal and the effective ultrasonic thickness measurement methods of metal, specifically
Be a kind of chip using multiple centripetal arrangements carry out thickness measure the effective ultrasonic wave thickness measuring probe of metal and metal it is effective super
Sound wave thickness measuring method.
Background technique
Ultrasonic wave is a kind of sound wave of the frequency higher than 20000 hertz, its good directionality, penetration capacity is strong, is easily obtained
Compared with the sound energy of concentration, since its processing is convenient, and there is good directive property, therefore be frequently used for measuring various plates, tubing wall
The case where thick, boiler vessel wall thickness and its local corrosion, corrosion, main work is played to equipment safety operation and modern management
With.Ultrasonic thickness measurement is to carry out thickness measure according to Ultrasonic Pulse-Echo principle, when the ultrasonic pulse of probe transmitting
When reaching material interface by testee, pulse is reflected back toward what probe was propagated in the material by precise measurement ultrasonic wave
Time determines the thickness of measured material.Carrying out metal tube wall thickness measuring using ultrasonic wave is a kind of common measurement technique, by
Easily corroded in use in metal tube thinned, thus periodic measurement metal tube wall thickness is that a kind of necessary safety in production is managed
Reason measure.Traditional metal tube ultrasonic thickness measurement technology carries out thickness measure using Single crystal probe diverging acoustic beam, lacks
Point is to pop one's head in the tested thickness for being once only capable of measuring single locus of every contact, measurement metal tube other when need it is constantly mobile
Probe, so the mobile number in entire measurement process increases, and measurement efficiency is low and is easy to appear the situation of missing inspection.Cause
And how to realize that single measures multiple measurement points of metal tube, the mobile number popped one's head in measurement process is reduced, thus
Measurement efficiency is improved to be a technical problem to be solved urgently.
Summary of the invention
In view of the above-mentioned problems existing in the prior art, the object of the present invention is to provide a kind of crystalline substances using multiple centripetal arrangements
Piece carries out the effective ultrasonic wave thickness measuring probe of metal and the effective ultrasonic thickness measurement method of metal of thickness measure, and specific summary of the invention is such as
Under:
A kind of metal effective ultrasonic wave thickness measuring probe is provided with the chip of at least two centripetal arrangements in probe.By
The multiple chips of setting, which can be realized, in probe disposably carries out thickness measure to multiple measured points, reduces probe in tested metal tube
The mobile number of outer wall, improves measurement efficiency.Preferably, chip can be in uniline arrangement or multirow arrangement.It is highly preferred that being
Realize that chip has transmitting ultrasonic wave and receives the dual function of echo, chip can be selected piezoelectric chip, preferably, optional
Rectangular wafer, the length range of rectangular wafer can be 5mm to 15mm, and the centre distance range of adjacent chip is preferably at this time
0.5mm to 1.5mm.In addition, in order to meet the measurement of the metal pipe-wall of different-thickness, frequency is can be selected in probe provided by the present invention
Rate is 1MHz to 15MHz piezoelectric chip.
Preferably, chip is arranged in a probing shell.It is further preferred that probing shell is equipped with one in cylinder planar
The chip of the surface of emission, multiple centripetal settings is arranged along the surface of emission.At this time chip transmitting ultrasonic wave can by the surface of emission into
Enter tested metal tube.It is further preferred that multiple chips are arranged along the surface of emission in uniline or multirow.Preferably, the transmitting
The width dimensions in face should be not less than the length dimension of chip.In addition, it is contemplated that the outer wall shape feature of metal tube, the surface of emission
Radian should be greater than 0 degree but be not more than 180 degree.
The chip popped one's head in order to prevent is worn in measurement process by coarse metal pipe outer wall, and the probe further includes one
The voussoir agreed with probing shell inner surface, when the probe measurement, the voussoir is located at probing shell and tested metal tube
Between outer wall.Wherein, the face coupled with probing shell is joint face, and the face coupled with tested metal pipe outer wall is measuring surface.It is excellent
Selection of land, joint face are bonded with the surface of emission of probing shell, and measuring surface is bonded with tested metallic pipe portions outer wall.It is highly preferred that being
Match voussoir with probe, the ultrasonic wave of each chip transmitting passes sequentially through the surface of emission, joint face and measuring surface.Preferably
Measuring surface can be arranged to a cylindrical surface for the outer wall shape of better complexed metal pipe by ground.At this point, the joint face of voussoir
It is not less than the width and radian of the surface of emission respectively with the width and radian of measuring surface.
It is further preferred that totally one symmetry axis is arranged for joint face and measuring surface in order to make voussoir and probe cooperate more preferably.
It is noted that in order to make ultrasonic wave by after voussoir with 0 degree of incident angles metal tube, in other words, in order to make ultrasonic wave
The path passed through in metal pipe-wall is just the wall thickness of metal tube, measurement radius surface can be set smaller than connection radius surface,
And be further coaxially disposed joint face and measuring surface, at this point, passage path of the ultrasonic wave in voussoir and joint face, measuring surface
Radial direction be overlapped.In addition, voussoir is made of organic glass.
It is noted that in order to which the metal tube different to plurality of specifications in the case where being changed without probe carries out thickness survey
Amount, inventor are creatively that probe is equipped with multiple voussoirs, and the joint face of each voussoir is all the same, but measuring surface radius size is equal
It is not identical.When using the metal tube for measuring different size when probe provided by the invention, it is only necessary to replace radius size and tested gold
Belong to the matched voussoir of pipe specification.At this point, the metal tube for common specification measures, the measuring surface radius of voussoir can be excellent
10mm is selected as to 100mm.Preferably, probing shell and voussoir are connected with movable connection method.Preferably, probing shell and voussoir
It is connected using bolt and nut.
A kind of effective ultrasonic thickness measurement method of metal carries out metal using the calibrator for including aforementioned any probe
Corrosion of the pipe wall detection.
Preferably, it the described method comprises the following steps:
Step a: the probe of the calibrator is bonded with metal pipe outer wall to be measured and carries out Corrosion monitoring；
Step b: metal tube thickness value to be measured is measured through calibrator.
It is highly preferred that voussoir used of popping one's head in step a is bonded completely with metal tube to be measured in order to realize accurate detection.
It is further preferred that the oxide etc. of metal pipe outer wall interferes testing result in order to prevent, step a is also wrapped
It includes polishing metal pipe outer wall to be measured and applies couplant in metal pipe outer wall to be measured.
It is further preferred that applying couplant in metal pipe outer wall to be measured.
It is noted that chip excitation program and thickness value calculation procedure built in calibrator, calibrator first simultaneously or according to
Secondary exciting wafer generates inverse piezoelectric effect, and each chip is made simultaneously or sequentially to issue ultrasonic wave respectively；Simultaneously or sequentially excitation is each again
Chip generates direct piezoelectric effect, and each chip is made simultaneously or sequentially to receive the back wave that the ultrasonic wave respectively issued generates respectively.
The thickness data result that calibrator is shown is a two-dimensional coordinate system, and wherein abscissa is wafer number 1,2,3 ...
N, ordinate are the thickness value of the corresponding measurement point of each chip.
In addition, when the metal tube of measurement different size, it is only necessary to a measuring surface and the matched voussoir of metal tube specification be selected to connect
It is connected to probing shell and is measured according to above-mentioned steps.
The effective ultrasonic wave thickness measuring probe of metal provided by the invention and the effective ultrasonic thickness measurement method of metal, using it is multiple to
The chip of heart arrangement carries out the thickness measure of metal tube, and is equipped with the different voussoir of size for the metal tube of different size, with
The prior art is compared, and probe provided by the invention greatly reduces the number of probe movement during metal tube thickness measure,
And cost of manufacture cheap voussoir is only needed to change when measuring the metal tube of different size, without replacing entire probe, tool
There is the feature that measurement efficiency is high, measurement cost is low, can be widely applied to water screen tube inner wall corrosion, in hydrophobic pipe bend
Wall, which washes away to be thinned, to be waited in measurement.
Detailed description of the invention
Fig. 1 is a kind of preferred embodiment of the effective ultrasonic wave thickness measuring probe of metal provided by the present invention；
Fig. 2 is the structural schematic diagram of the probing shell of the effective ultrasonic wave thickness measuring probe of metal；
Fig. 3 is arrangement schematic diagram of the piezoelectric chip on the surface of emission；
Fig. 4 is the structural schematic diagram of voussoir；
Wherein, 1 is probing shell, and 2 be voussoir, and 3 be the surface of emission, and 4 be piezoelectric chip, and 5 be joint face, and 6 be measuring surface, 7
It is voussoir b for voussoir a, 8,9 be voussoir c, and 10 be voussoir d, and 11 be voussoir e.
Specific embodiment
With reference to the accompanying drawings of the specification the present invention is made further to illustrate in detail, completely.
As shown in Figure 1, 2, the effective ultrasonic wave thickness measuring probe of a kind of metal, including it is sequentially connected along the ultrasonic wave direction of the launch
Probing shell 1 and voussoir 2, probing shell is equipped with the surface of emission 3 that one is in cylinder planar, and specifically, the radian of the surface of emission is 150
Degree, width 12mm, radius 100mm, as shown in figure 3, being provided with 64 in probing shell along the surface of emission in uniline and centripetal
The piezoelectric chip 4 of arrangement, the length of piezoelectric chip are 10mm, and the centre distance between adjacent piezoelectric chip is 10mm, chip
Frequency be 7MHz；In order to cooperate probe use, voussoir also be provided with one be in cylinder planar joint face 5 and measuring surface 6, wherein connecting
Junction is identical with surface of emission size.It is noted that in order to make ultrasonic wave with zero degree incidence angle by after voussoir again with 0
Incident angles metal tube is spent, in other words, in order to which the path for passing through ultrasonic wave in metal pipe-wall is just the wall of metal tube
Voussoir is arranged to semi-annular shape by thickness, inventor, and measurement radius surface is set smaller than connection radius surface, in other words, ultrasonic at this time
Passage path of the wave in voussoir is overlapped with the radial direction of joint face, measuring surface.In addition, the radian of voussoir is preferably 150 degree,
I.e. joint face and measuring surface radian are 150 degree, and the material of voussoir is organic glass.
It is noted that diversified in specifications due to the tested metal tube in actual measurement, this requires use and be tested
The matched probe of metal pipe outer wall carries out metal tube measurement, however the cost of manufacture popped one's head in is high, as each specification
Metal tube makes a matched probe and then substantially increases measurement cost and cause to waste, thus, in order to be changed without spy
Realize that the metal tube different to plurality of specifications carries out thickness test in the case where head, it is more that inventor is creatively that probe is equipped with
A voussoir for cooperating various sizes of metal tube measurement, as shown in figure 4, it is identical that 5 joint faces are specifically arranged, and is surveyed
Amount radius surface matches the semi-annular shape voussoir of common metal tube, and wherein the radius of voussoir a7 is 38mm, the radius of voussoir b8
45mm, voussoir c9 radius be 51mm, the radius of voussoir d10 is 60mm, the radius of voussoir e11 is 63mm.Correspondingly, in order to just
In dismounting, voussoir is movably connected on probing shell using bolt and nut connection type.
A kind of effective ultrasonic thickness measurement method of metal, comprising the following steps:
Step 1: ultrasonic wave thickness measuring probe provided by the present invention is accessed into sonigauge, chip built in host swashs
Program and thickness value calculation procedure are sent out, excites in program and thickness value calculation procedure in chip and each chip is used from left to right
1, it 2,3 ... 64 is numbered；
Step 2: the outer wall for metal tube to be measured of polishing, and couplant is applied in outer wall area to be measured；
Step 3: the measuring surface of the voussoir of ultrasonic wave thickness measuring probe is in contact with outer wall to be measured, each chip is from left to right
Respectively correspond different measurement points.Host successively controls the chip that number is 1,2,3 ... 64 according to preset program and produces
Raw inverse piezoelectric effect, makes each chip become ultrasonic transmitter, each chip simultaneously or sequentially issues ultrasonic wave, ultrasonic wave respectively at this time
Voussoir, couplant, which are passed sequentially through, with 0 degree of incidence angle is finally tested metal tube with 0 degree of incident angles；When what each chip issued surpasses
Sound wave generates back wave when reaching the inner wall of its corresponding measured point, and host, which successively controls to number by program, at the same time is
1,2,3 ... 64 chip generates direct piezoelectric effect, so that chip is become echo receiver, at this point, each chip simultaneously or sequentially divides
The back wave that the ultrasonic wave respectively issued generates is not received；
Step 4: the metrical information that ultrasonic probe will acquire is transmitted to the host of data connection, and host passes through thickness value
Calculation procedure calculates the thickness value of the corresponding measurement point of each chip, and the data processed result of thickness value calculation procedure is shown as one
Two-dimensional coordinate system, wherein abscissa is wafer number, and ordinate is the thickness value of the corresponding measurement point of each chip.
When measuring the metal tube of different size, it is only necessary to a measuring surface and the matched voussoir of metal tube specification be selected to be connected to spy
Casing is simultaneously measured according to above-mentioned steps.
Claims (19)
1. a kind of effective ultrasonic wave thickness measuring probe of metal, it is characterised in that: be provided with the crystalline substance of at least two centripetal arrangements in probe
Piece, the probe further includes the voussoir agreed with probing shell inner surface, and when the probe measurement, the voussoir is located at probe
Between shell and tested metal pipe outer wall, the face that voussoir is coupled with probing shell is joint face, is coupled with tested metal pipe outer wall
Face be measuring surface；Probe configures multiple voussoirs, and the joint face of multiple voussoirs is identical and the radius size of measuring surface is different.
2. ultrasonic wave thickness measuring probe according to claim 1, it is characterised in that: chip is arranged in uniline.
3. ultrasonic wave thickness measuring probe according to claim 1, it is characterised in that: chip is piezoelectric chip.
4. ultrasonic wave thickness measuring probe according to claim 1, it is characterised in that: chip is rectangular wafer.
5. ultrasonic wave thickness measuring probe according to claim 1, it is characterised in that: chip is arranged in a probing shell.
6. ultrasonic wave thickness measuring probe according to claim 5, it is characterised in that: probing shell is equipped with one in cylinder planar
The chip of the surface of emission, multiple centripetal settings is arranged along the surface of emission.
7. ultrasonic wave thickness measuring probe according to claim 6, it is characterised in that: multiple chips along the surface of emission in uniline or
Multirow arrangement.
8. ultrasonic wave thickness measuring probe according to claim 6, it is characterised in that: the radian of the surface of emission is greater than 0 degree but little
In 180 degree.
9. ultrasonic wave thickness measuring probe according to claim 1, it is characterised in that: the transmitting face paste of joint face and probing shell
It closes, measuring surface is bonded with tested metallic pipe portions outer wall.
10. ultrasonic wave thickness measuring probe according to claim 9, it is characterised in that: the ultrasonic wave of each chip transmitting successively leads to
Cross the surface of emission, joint face and measuring surface.
11. ultrasonic wave thickness measuring probe according to claim 10, it is characterised in that: measuring surface is a cylindrical surface.
12. ultrasonic wave thickness measuring probe according to claim 11, it is characterised in that: joint face and measuring surface totally one symmetry axis
Setting.
13. ultrasonic wave thickness measuring probe according to claim 12, it is characterised in that: joint face and measuring surface be coaxially disposed and
It measures radius surface and is less than connection radius surface.
14. ultrasonic wave thickness measuring probe according to claim 1, it is characterised in that: probing shell is with voussoir to be flexibly connected
Mode connects.
15. ultrasonic wave thickness measuring probe according to claim 1, it is characterised in that: voussoir is organic glass.
16. a kind of effective ultrasonic thickness measurement method of metal, it is characterised in that: using includes that claim 1~15 is any described
The calibrator of probe carries out metal pipe-wall Thickness sensitivity.
17. according to the method for claim 16, it is characterised in that: the described method comprises the following steps:
Step a: the probe of the calibrator is bonded with metal pipe outer wall to be measured and carries out Corrosion monitoring；
Step b: metal tube thickness value to be measured is measured through calibrator.
18. according to the method for claim 17, it is characterised in that: voussoir used in popping one's head in step a and metal tube to be measured are complete
Full fitting.
19. according to the method for claim 18, it is characterised in that: step a further include polish metal pipe outer wall to be measured and
Metal pipe outer wall to be measured applies couplant.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610067060.4A CN105737771B (en) | 2016-01-30 | 2016-01-30 | A kind of effective ultrasonic wave thickness measuring probe of metal and the effective ultrasonic thickness measurement method of metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610067060.4A CN105737771B (en) | 2016-01-30 | 2016-01-30 | A kind of effective ultrasonic wave thickness measuring probe of metal and the effective ultrasonic thickness measurement method of metal |
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| Publication Number | Publication Date |
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| CN105737771A CN105737771A (en) | 2016-07-06 |
| CN105737771B true CN105737771B (en) | 2019-02-22 |
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| CN110031551B (en) * | 2019-05-17 | 2021-09-21 | 中国石油天然气第一建设有限公司 | Automatic pipe-connecting fillet weld phased array detection device capable of being scanned in two directions |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2243645Y (en) * | 1996-04-24 | 1996-12-25 | 四川电力试验研究院 | Supersonic probe for inspecting axial craze of inner wall of elbow connection of main steam and water supply pipes of electric power station |
| CN101923075A (en) * | 2009-06-10 | 2010-12-22 | 中国科学院金属研究所 | Method for compensating vibration of automatic and ultrasonic steel pipe flaw detection probe |
| CN202676673U (en) * | 2012-08-03 | 2013-01-16 | 北京交通大学 | Steel pipe ultrasonic flaw detection composite probe device |
| US20150233710A1 (en) * | 2015-04-22 | 2015-08-20 | Francesco Simonetti | Methods and Apparatus for Measurement or Monitoring of Wall Thicknesses in the Walls of Pipes or Similar Structures |
| CN105043312A (en) * | 2015-08-27 | 2015-11-11 | 浙江省特种设备检验研究院 | Spherical densely-covered type probe ultrasonic thickness measurement device used for detection in pressure pipeline |
-
2016
- 2016-01-30 CN CN201610067060.4A patent/CN105737771B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2243645Y (en) * | 1996-04-24 | 1996-12-25 | 四川电力试验研究院 | Supersonic probe for inspecting axial craze of inner wall of elbow connection of main steam and water supply pipes of electric power station |
| CN101923075A (en) * | 2009-06-10 | 2010-12-22 | 中国科学院金属研究所 | Method for compensating vibration of automatic and ultrasonic steel pipe flaw detection probe |
| CN202676673U (en) * | 2012-08-03 | 2013-01-16 | 北京交通大学 | Steel pipe ultrasonic flaw detection composite probe device |
| US20150233710A1 (en) * | 2015-04-22 | 2015-08-20 | Francesco Simonetti | Methods and Apparatus for Measurement or Monitoring of Wall Thicknesses in the Walls of Pipes or Similar Structures |
| CN105043312A (en) * | 2015-08-27 | 2015-11-11 | 浙江省特种设备检验研究院 | Spherical densely-covered type probe ultrasonic thickness measurement device used for detection in pressure pipeline |
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| CN105737771A (en) | 2016-07-06 |
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