CN108088566A - A kind of detection device of test specimen internal flaw - Google Patents
A kind of detection device of test specimen internal flaw Download PDFInfo
- Publication number
- CN108088566A CN108088566A CN201711384488.2A CN201711384488A CN108088566A CN 108088566 A CN108088566 A CN 108088566A CN 201711384488 A CN201711384488 A CN 201711384488A CN 108088566 A CN108088566 A CN 108088566A
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- case
- test specimen
- imaging system
- thermal imaging
- pyrotoxin
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- 238000012360 testing method Methods 0.000 title claims abstract description 51
- 238000001514 detection method Methods 0.000 title claims abstract description 32
- 238000001931 thermography Methods 0.000 claims abstract description 58
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- 150000002367 halogens Chemical class 0.000 claims description 4
- 206010019909 Hernia Diseases 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 13
- 230000005540 biological transmission Effects 0.000 abstract description 11
- 230000002950 deficient Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 description 4
- 206010037660 Pyrexia Diseases 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/48—Thermography; Techniques using wholly visual means
- G01J5/485—Temperature profile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/59—Transmissivity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J2005/0077—Imaging
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8854—Grading and classifying of flaws
- G01N2021/8874—Taking dimensions of defect into account
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Signal Processing (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The present invention relates to defect detecting technique fields, more particularly to a kind of detection device of test specimen internal flaw, including pedestal, case, pyrotoxin and the first thermal imaging system, the open at its lower end of case, and case is covered on pedestal, test specimen to be detected is positioned in case, the side wall of case is equipped with the first mounting hole, and the first thermal imaging system is installed in the first mounting hole, the inside of the alignment lens case of thermal imaging system, pyrotoxin is arranged on the inside of case, and pyrotoxin is oppositely arranged with the first thermal imaging system.When in use, pyrotoxin carries out flash irradiation in one side to the test specimen to be detected in case, first thermal imaging system obtains transmission thermal map in opposite side, due to defective place, the transmission of heat can be affected, therefore the positions and dimensions of defect can clearly be judged by the transmission thermal map on thermal imaging system, even the depth that defect is buried is deeper, can still obtains and more clearly transmit thermal map.
Description
Technical field
The present invention relates to defect detecting technique field more particularly to a kind of detection devices of test specimen internal flaw.
Background technology
Pulse heat is to detecting subject surface using high-power thermolamp (can be halogen lamp or xenon lamp) as detection technique
Flash irradiation is carried out, records detection subject surface Temperature Distribution and change procedure using thermal infrared imager in the process.
The detection method is typically based on surface layer at present or secondary cosmetic bug is detected the reflex mechanism of heat, that is, swashs
Same surface of the face with detection faces (thermal map collection surface) for detection object is encouraged, two thermolamps are arranged in parts list by certain angle
Above face, thermal infrared imager is arranged in directly over part, among two thermolamps.Thermolamp carry out pulse flash, to piece surface into
After row energization, conduction, runs into internal flaw and is reflected back upper surface, cause defective locations upper surface temperature liter inside the heat of surface
Height, thermal imaging system collection surface temperature profile (thermal map), judges defective locations and size.It is right according to thermal conductivity law
In the thin wall constitutional detail the defects of, if internal defects buried depth is more than the half of thin-walled parts thickness, heat is reflected
Conduction distance 1.5d will be more than transmission heat conduction distance d.It is passed based on the thermal profile of reflective-mode by laterally heat
The influence bigger led, reflection thermal map will weaken the resolution capability of defect.
The content of the invention
(1) technical problems to be solved
The technical problem to be solved by the present invention is to solve, when the internal flaw of test specimen buries deeper, to obtain using reflective-mode
The problem of reflection thermal map arrived is weaker to the resolution capability of defect.
(2) technical solution
In order to solve the above technical problem, the present invention provides a kind of detection device of test specimen internal flaw, including pedestal,
Case, pyrotoxin and the first thermal imaging system, the open at its lower end of the case, and the case is covered on the pedestal, it is to be detected
Test specimen be positioned in the case；The side wall of the case is equipped with the first mounting hole, and first thermal imaging system is installed on institute
It states in the first mounting hole, and the alignment lens test specimen to be detected of first thermal imaging system；The pyrotoxin is arranged on the case
Inside, and the pyrotoxin is oppositely arranged with first thermal imaging system, and the pyrotoxin is used for the table to test specimen to be detected
Face is evenly heated.
Wherein, the side wall of the case is equipped with the second mounting hole, and second mounting hole and first mounting hole are just
It is right, it is equipped with the second thermal imaging system in second mounting hole, the alignment lens of second thermal imaging system test specimen to be detected.
Wherein, the quantity of the pyrotoxin is multiple that multiple pyrotoxins are symmetrically arranged on second thermal imaging system
Both sides.
Wherein, the shape of the case is cylindrical shape.
Wherein, the pyrotoxin is halogen lamp or hernia lamp.
Wherein, the pedestal is equipped with sample table, and the sample table is used to place test block to be checked.
Wherein, the lower end of the case is equipped with the first sliding groove, and the upper surface of the pedestal is equipped with matches somebody with somebody with the first sliding groove
The ring slider of conjunction.
Wherein, the upper surface of the pedestal is equipped with annular groove, and the lower end of the case is rotatably arranged on the annular
In sliding slot.
Wherein, the upper end of the case is equipped with head cover, and the head cover is fastened with the case.
(3) advantageous effect
The above-mentioned technical proposal of the present invention has the following advantages that：A kind of detection dress of test specimen internal flaw provided by the invention
It puts, including pedestal, case, pyrotoxin and the first thermal imaging system, the open at its lower end of case, and case is covered on pedestal, to be detected
Test specimen be positioned in case, the side wall of case is equipped with the first mounting hole, and the first thermal imaging system is installed in the first mounting hole, heat
As the inside of the alignment lens case of instrument, pyrotoxin is arranged on the inside of case, and pyrotoxin is oppositely arranged with the first thermal imaging system.
In use, pyrotoxin carries out flash irradiation in one side to the test specimen to be detected in case, the first thermal imaging system is obtained in opposite side
Thermal map is transmitted, due to defective place, the transmission of heat can be affected, therefore pass through the transmission thermal map on thermal imaging system
The positions and dimensions of defect are clearly judged, even the depth that defect is buried is deeper, can still be obtained more clear
Clear transmission thermal map.
Except it is described above present invention solves the technical problem that, form technical solution technical characteristic and have this
Outside advantage caused by the technical characteristic of a little technical solutions, what other technical characteristics of the invention and these technical characteristics were brought
Advantage will be further illustrated with reference to attached drawing.
Description of the drawings
Fig. 1 is the top view of the detection device of time internal flaw provided in an embodiment of the present invention.
In figure：1：Case；2：First thermal imaging system；3：Pyrotoxin；4：Second thermal imaging system；5：Sample table；6：Pedestal.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's all other embodiments obtained on the premise of creative work is not made, belong to the scope of protection of the invention.
In the description of the present invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
In addition, in the description of the present invention, unless otherwise indicated, " multiple ", " more ", " multigroup " be meant that two or
Two or more, " several ", " several ", " several groups " are meant that one or more.
As shown in Figure 1, a kind of detection device of test specimen internal flaw provided in an embodiment of the present invention, pedestal 6, case 1, hair
3 and first thermal imaging system 2 of heat source, the open at its lower end of case 1, and case cover 1 are arranged on pedestal 6, and test specimen to be detected is positioned over cover
In shell 1, the side wall of case 1 is equipped with the first mounting hole, and the first thermal imaging system 2 is installed in the first mounting hole, and the first thermal imaging system 2
Alignment lens test specimen to be detected, pyrotoxin 3 is arranged on the inside of case 1, and pyrotoxin 3 is oppositely arranged with the first thermal imaging system 2,
In the present embodiment, pyrotoxin 3 is halogen lamp or hernia lamp, and pyrotoxin 3 is installed on the inner wall of case.When in use, generate heat
Source 3 carries out the test specimen to be detected in case 1 flash irradiation in one side, and the first thermal imaging system 2 obtains transmission thermal map in opposite side,
Due to defective place, the transmission of heat can be affected, therefore can be to lacking by the transmission thermal map on the first thermal imaging system 2
Sunken positions and dimensions are clearly judged, even the depth that defect is buried is deeper, can still be obtained more clearly
Transmit thermal map.
Further, the side wall of case 1 be equipped with the second mounting hole, the second mounting hole and the first mounting hole face, second
The second thermal imaging system 4, the inside of the alignment lens case of the second thermal imaging system 4 are equipped in mounting hole.Flash of light fever is carried out in pyrotoxin 3
When, the second thermal imaging system 4 is gathered due to the thermal map picture on the surface of test block to be checked caused by reflection.When in use, test specimen is worked as
The defects of internal depth it is shallower when, can select to obtain the reflection thermography of surface of test piece to be detected using the second thermal imaging system, when
The defects of inside test specimen depth it is deeper when, can select to obtain the transmission thermal imagery of surface of test piece to be detected using the first thermal imaging system
Figure.
Further, the quantity of pyrotoxin 3 is multiple that multiple pyrotoxins 3 are symmetrically arranged on the both sides of the second thermal imaging system 4.
In the present embodiment, the quantity of pyrotoxin 3 is two, and two pyrotoxins 3 are symmetrically arranged on the both sides of the second thermal imaging system 4, so
It can ensure that pyrotoxin 3 can uniformly heat the surface of test specimen to be detected.
Further, the shape of case 1 is cylindrical shape, and feature is to surround what test block to be checked was combined
Pyrotoxin 3 is arranged, it is ensured that all pyrotoxins 3 are identical with the distance for detecting object, as long as pyrotoxin 3 is perpendicular to side wall section
It arranges, then its direction of illumination face test block to be checked, without being adjusted according to part.This feature can ensure to be detected
Test specimen is evenly heated, and improves the accuracy of testing result indirectly.
Further, pedestal 6 is equipped with sample table 5, and sample table 5 is used to place test block to be checked.Sample table 5 is arranged on bottom
The center of seat 6, to ensure that any position of case 1 is identical with the distance of sample table 5.
Further, case 1 can do 360 ° of rotations on pedestal 6, can be realized to test specimen difference position by this feature
The continuous detection put for the detection object of complex contour, need not manually adjust the position for detecting object in detection process.Phase
Than existing apparatus, the design can improve detection efficiency.It realizes that the form rotated can be equipped with first in the lower end of case 1
Sliding slot, the upper surface of pedestal 6 are equipped with the ring slider with the first sliding groove cooperation.Can also be equipped with ring in the upper surface of pedestal 1
Shape sliding slot, the lower end of case 6 are rotatably arranged in annular groove.
Further, the upper end of case 1 is equipped with head cover, and head cover is fastened with case 1.Head cover opening can be facilitated to be detected
Part picks and places.
In use, the first thermal imaging system 2 and the second thermal imaging system 4 both can be gathered individually and Object table detected as caused by heat reflection
Face heat distribution can also individually gather the detection subject surface heat distribution as caused by heat transfer, can also use two thermal imaging systems
Two kinds of surface thermal maps are gathered simultaneously.This feature extends the function of fever source forcing thermal image detection device.
In conclusion a kind of detection device of test specimen internal flaw provided in an embodiment of the present invention, including pedestal, case,
First thermal imaging system, the second thermal imaging system and pyrotoxin, the first thermal imaging system, the second thermal imaging system and pyrotoxin are arranged on case, and first
Thermal imaging system is oppositely arranged with the second thermal imaging system, and multiple pyrotoxins are symmetrically arranged on the both sides of the second thermal imaging system, to ensure to be checked
The surface of test block is evenly heated, and the first thermal imaging system and the second thermal imaging system both can individually gather the inspection as caused by heat reflection
Subject surface heat distribution is surveyed, the detection subject surface heat distribution as caused by heat transfer can also be individually gathered, can also use two
Platform thermal imaging system gathers two kinds of surface thermal maps simultaneously, according to the table for the test block to be checked that the first thermal imaging system or the second thermal imaging system collect
Face heat balance diagram, you can clearly judge the positions and dimensions of test specimen internal flaw.And case can carry out 360 ° of rotations on pedestal,
The continuous uninterrupted detection of the first thermal imaging system and the second thermal imaging system to test specimen different position to be detected can be achieved, greatly heighten
Detection efficiency.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
To modify to the technical solution recorded in foregoing embodiments or carry out equivalent substitution to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical solution spirit and
Scope.
Claims (9)
1. a kind of detection device of test specimen internal flaw, it is characterised in that：Including pedestal, case, pyrotoxin and the first thermal imaging system,
The open at its lower end of the case, and the case is covered on the pedestal, test specimen to be detected is positioned in the case；Institute
The side wall for stating case is equipped with the first mounting hole, and first thermal imaging system is installed in first mounting hole, and described first
The alignment lens of thermal imaging system test specimen to be detected；The pyrotoxin be arranged on the case inside, and the pyrotoxin with it is described
First thermal imaging system is oppositely arranged, and the pyrotoxin is used to be evenly heated the surface of test specimen to be detected.
2. the detection device of test specimen internal flaw according to claim 1, it is characterised in that：It is set on the side wall of the case
There are the second mounting hole, second mounting hole and the first mounting hole face, the second thermal imagery is equipped in second mounting hole
Instrument, the alignment lens of second thermal imaging system test specimen to be detected.
3. the detection device of test specimen internal flaw according to claim 2, it is characterised in that：The quantity of the pyrotoxin is
Multiple, multiple pyrotoxins are symmetrically arranged on the both sides of second thermal imaging system.
4. the detection device of test specimen internal flaw according to claim 1, it is characterised in that：The shape of the case is circle
Tubular.
5. the detection device of test specimen internal flaw according to claim 1, it is characterised in that：The pyrotoxin is halogen lamp
Or hernia lamp.
6. the detection device of test specimen internal flaw according to claim 1, it is characterised in that：The pedestal is equipped with sample
Platform, the sample table are used to place test block to be checked.
7. the detection device of test specimen internal flaw according to claim 4, it is characterised in that：The lower end of the case is equipped with
The first sliding groove, the upper surface of the pedestal are equipped with the ring slider with the first sliding groove cooperation.
8. the detection device of test specimen internal flaw according to claim 4, it is characterised in that：The upper surface of the pedestal is set
There is annular groove, the lower end of the case is rotatably arranged in the annular groove.
9. according to the detection device of claim 1-8 any one of them test specimen internal flaws, it is characterised in that：The case
Upper end is equipped with head cover, and the head cover is fastened with the case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711384488.2A CN108088566A (en) | 2017-12-20 | 2017-12-20 | A kind of detection device of test specimen internal flaw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711384488.2A CN108088566A (en) | 2017-12-20 | 2017-12-20 | A kind of detection device of test specimen internal flaw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108088566A true CN108088566A (en) | 2018-05-29 |
Family
ID=62176216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711384488.2A Pending CN108088566A (en) | 2017-12-20 | 2017-12-20 | A kind of detection device of test specimen internal flaw |
Country Status (1)
| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112763014A (en) * | 2021-02-05 | 2021-05-07 | 江苏华尔威科技集团有限公司 | Oil well measuring system based on internet of things technology |
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|---|---|---|---|---|
| CN102933147A (en) * | 2010-04-29 | 2013-02-13 | 普兰梅德有限公司 | Medical computed tomography imaging apparatus |
| JP2013225733A (en) * | 2012-04-19 | 2013-10-31 | Hideyuki Fujisawa | Imaging scanner system for 360° imaging |
| CN103063301A (en) * | 2013-01-09 | 2013-04-24 | 浙江大学 | Device and method for detecting plant lamina three-dimensional light distribution |
| CN104568958A (en) * | 2013-10-16 | 2015-04-29 | 北京有色金属研究总院 | Optical excitation and ultrasonic excitation combined infrared nondestructive testing device |
| CN105067663A (en) * | 2015-09-17 | 2015-11-18 | 中国电子科技集团公司第三十八研究所 | Device and method for detecting thermal sealing of aerostat envelope material |
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| CN106680314A (en) * | 2016-11-18 | 2017-05-17 | 哈尔滨工业大学 | Projection type infrared thermal imaging device and method for non-destructive detection of internal defect between thin film layers |
| CN106959319A (en) * | 2017-03-31 | 2017-07-18 | 哈尔滨工业大学 | A kind of Dynamic Thermal tomography detecting system and method based on pulse excitation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112763014A (en) * | 2021-02-05 | 2021-05-07 | 江苏华尔威科技集团有限公司 | Oil well measuring system based on internet of things technology |
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