CN106932438A - Portable flash lamp encourages heat wave nondestructive detection system - Google Patents
Portable flash lamp encourages heat wave nondestructive detection system Download PDFInfo
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- CN106932438A CN106932438A CN201511027215.3A CN201511027215A CN106932438A CN 106932438 A CN106932438 A CN 106932438A CN 201511027215 A CN201511027215 A CN 201511027215A CN 106932438 A CN106932438 A CN 106932438A
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- heat wave
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- flash lamp
- power supply
- detection system
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- 238000001514 detection method Methods 0.000 title claims abstract description 35
- 230000005284 excitation Effects 0.000 claims abstract description 18
- 238000012545 processing Methods 0.000 claims abstract description 15
- 238000012360 testing method Methods 0.000 claims description 15
- 238000004458 analytical method Methods 0.000 claims description 2
- 238000013523 data management Methods 0.000 claims 1
- 239000000523 sample Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 230000001066 destructive effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000009659 non-destructive testing Methods 0.000 description 2
- 206010019133 Hangover Diseases 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/72—Investigating presence of flaws
Abstract
The invention discloses a kind of portable flash lamp excitation heat wave nondestructive detection system, the system includes high power flash, infrared thermoviewer, data processing display system, touch screen displays, flash lamp control unit, flash generator.Device structure is compact to design, light, thermal infrared imager, high power flash, data processing unit and touch screen displays are integrated in a portable detection module, flash lamp control unit is integrated in power control system module with power supply unit, without other external power sources in use.Operating personnel can be hold by one hand probe unit and produce heat wave and detect to carrying out high energy pulse thermal excitation by sample surface.Equipment is using touch screen operation control, and man-machine interface is easy.
Description
Technical field
The present invention relates to a kind of nondestructive detection system based on thermal wave imagine technique, the mode of thermal excitation is carried out especially with flash lamp, can be used for various materials, including metal, the detection of the structure and defect of nonmetallic and all kinds of composites, belong to Infrared Non-destructive Testing technical field.
Background technology
With the fast development of the industry such as new material, new energy, high-speed railway, nuclear industry and Aero-Space, demand to the Non-Destructive Testing of various materials increasingly increases, especially in aerospace field, composite has been widely used in fuselage, wing, storepipe, and the utilization of composite has turned into one of advanced mark of modern aerospace field equipment.Composite structure generally by the way of multi-layer fiber viscose glue or honeycomb sandwich construction, with high intensity and lightweight advantage.Due to often producing the defects such as interior laminate layer, unsticking, crack during manufacture and use, traditional detection method is to use ultrasonic detecting technology, it is necessary to could be detected on measured material surface plus couplant, and need point by point scanning, is wasted time and energy.The material loose for rough surface and internal structure, such as structure of cellular sheet material, ultrasonic technique are just relatively difficult to detection.
Thermal wave imagine technique is the nondestructiving detecting means that RECENT DEVELOPMENTS is got up, its general principle is surface of test piece to be heated using thermal excitation source produce thermal pulse, the thermal pulse forms heat wave to test specimen internal communication, when heat wave run into defect inside test specimen or thermal impedance is changed it is local when, partial heat energy will occur the surface reflected and return to test specimen so that the temperature of surface of test piece forms dynamic distribution.The information changed over time using thermal infrared imager record surface of test piece temperature, then heat wave signal is corrected, processed and analyzed by image processing meanses, realize the detection to material internal defect.Compared to traditional nondestructiving detecting means, thermal wave imagine technique has the advantages such as unique noncontact, large area fast imaging.
Aero-Space and industrial equipment are safe failure-free operation, it is necessary to periodically carry out state-detection to these equipment after coming into operation.To realize this In-service testing, small volume, lightweight, easy to operate and have power autonomous portable non-destructive detecting device is generally required.Traditional flash lamp excitation infrared detection equipment volume is big, weight weight, is divided into three parts.Operating personnel need both hands to help flash lamp and imaging unit against surface of test piece during detection, and computer control is usually a single unit with collecting part, and independent flash generator part is also very heavy, therefore use extremely inconvenience by one man operation.In addition, the capacitor in flash generator is charged and need to be powered using external ac power source, it is often subject to the limitation of outfield testing conditions and cannot uses.Therefore the improvement of portability to portable flash lamp excitation heat wave non-destructive detecting device is main target of the invention, it is desirable to reaches light weight, compact conformation, easily operated, adapts to the detection demand under different external field environments.
The content of the invention
Deficiency of the purpose of the present invention aiming at current portable flash lamp heat wave non-destructive detecting device, propose a kind of infrared thermal wave NDT system for being particularly suitable for line, thermal excitation, imaging and computer and display control program are integrated in one and are easy to hand-held portable unit, the slightly larger power-supply system of volume and weight is integrated in another movable units, and embed pluggable high-energy lithium battery, without external power supply, that accomplishes truly is portable.
Brief description of the drawings
Fig. 1 is that portable flash lamp encourages heat wave nondestructive detection system principle schematic；
Fig. 2 is a kind of implementation example of the invention.
Specific embodiment
In order that principle of the invention and feature are better understood, it is described further with accompanying drawing below with reference to specific implementation example.
Shown in Fig. 1 is portable flash lamp excitation heat wave nondestructive detection system schematic diagram, and the system includes strobe light unit 15, thermal infrared imager 13, flash generator 16, flash of light control module 11, voltage-stabilized power supply 17, data processing unit 14, touch screen displays 23 and rechargeable battery 19.Strobe light unit 15 is made up of parts such as high power flash pipe, reflection shield and radiator fans.Flash generator 16 is made up of high voltage charge circuit and capacitive energy storage device etc., and under its driving, high power flash pipe sends the short pulse flash 20 of high intensity and projects the surface of sample 12 and carries out PULSE HEATING, and produced heat wave is propagated to sample interior.When sample interior is defective or during structure change, heat wave will produce part reflected signal to return to the surface of sample 12.Thermal infrared imager 13 carries out Treatment Analysis for gathering the heat wave image that the surface temperature of sample 12 is changed over time, and the heat wave image of collection being sent into data processing unit 14.If sample inside is defective, the reflected signal of fault location will clearly be showed by image procossing.Flash of light control module 11 is used for the operation of the charging circuit for controlling flash generator 16, and output to flash lamp carries out truncation.Because the pulse of flash lamp has the hangover of the low energy of some time, the output of this low energy influences whether the collection of initial stage heat wave image for the purpose of truncation.Voltage-stabilized power supply 17 is used to provide galvanic current source for whole system, and efficient rechargeable battery 19 is usually lithium battery, for being simultaneously that flash generator 16 and voltage-stabilized power supply 17 provide electric power.Can about meet more than more than 100 times high power flash electric discharge demand at full capacity full of once electricity.
Strobe light unit 15 and thermal infrared imager 13, data processing unit 14 and touch screen displays 23 are all integrated in same casing, constitute excitation detection module 10.And voltage-stabilized power supply 17, rechargeable battery 19, flash generator 16 and flash of light control module 11 are integrated in another casing, power supply module 18 is constituted.Connected by connection cables 25 between excitation detection module 10 and power supply module 18, deliver low-voltage dc power supply, high-voltage flash lamp power supply and the communication signal for controlling.
Shown in Fig. 2 is a kind of implementation example of portable flash lamp excitation heat wave nondestructive detection system, and system is mainly made up of excitation detection module 10 and power supply module 18.It is made up of with reflection light shield 21 housing 22 outside excitation detection module 10, housing 22 is built-in with data processing unit 14, for processing and showing the image of the collection of thermal infrared imager 13, and is provided system operatio interface.The top of housing 22 is touch screen displays 23, for display image and operating system software.The bottom symmetrical placement of housing 22 has two independent strobe light units 15.The high power flash of the two is connected with flash generator 16 respectively by connection cables 25, and flash controller 11 controls flash generator 16 to realize charging, triggering and the truncation of flash lamp.Being fixed on the handle 24 of the side of housing 22 has using the profile of ergonomic designs, and convenient detection operating personnel are hold by one hand excitation detection module 10, so as to the various operations for passing through the control device of touch screen displays 23 with another hand.Installed in the bottom of housing 22 reflection light shield 21 by the light collection of flashlamp radiation to sample surfaces, while will also play prevention high-energy high light leak, prevent the effect of intense direct illumination test operation personnel and periphery personnel's eyes.The bottom of reflection light shield 21 can contact in test and rubber ceiling is provided with sample surfaces, therefore its bottom margin to protect sample surfaces, while providing certain frictional force when sample surfaces are fitted, lower hand-held dynamics.Power switch 34 on the left of handle can individually control to be supplied to the power supply of data processing unit 14 by voltage-stabilized power supply 17.
The outside of the power supply module 18 of flash lamp is made up of power supply box shell 32 and top panel 30, and the positioned inside of power supply box shell 32 has capacitor bank, pluggable high-energy lithium cells 27, flash generator 16 and the flash of light control module 11 that high energy flash electric discharge is produced for flash lamp.The battery charging socket 28 for connection external cell charging adapter is mounted with above power supply module 18 on plate 30, for the trigger switch 31 with LED light of manual triggering, the power switch 33 of power supply box, the liquid crystal display 26 for showing power supply charging and discharging state and battery electric quantity.Handle 29 facilitates test operation personnel to carry power supply module 18 to various application scenarios.
In actual use, operating personnel's single hand grip thermal excitation detection module 10, and it is close to the surface of test piece that need to be tested, due to the frictional force of the rubber ceiling of reflection light shield 21 bottom, the support degree of hand obtains very big reduction.Another hand can be operated by touch-screen, control the operation of whole system all parts.Equipment does not need external power supply when running, therefore movement is very convenient.A small two-wheel hand buggy can also be equipped with for power supply module 18, further facilitate operating personnel and move the equipment.
This implementation example provides the thinking and method of a kind of topology layout of portable flash lamp excitation heat wave nondestructive detection system, and implementing the scheme and approach of the technology has a lot, and the above is only the preferred embodiment of the present invention.It should be pointed out that to those of ordinary skill in the art, under the premise without departing from the principles of the invention, can also make some improvement, these improvement also should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of portable flash lamp encourages heat wave nondestructive detection system, it is characterised in that the system includes：
Thermal infrared imager（13）, the thermal infrared imager（13）For gathering test specimen（12）The heat wave image on surface；
Strobe light unit（15）, the strobe light unit（15）For to test specimen（12）Surface actuator high-energy short pulse heat wave；
Flash generator（16）, the flash generator（16）For storing high pressure high-energy electric charge, for exciting strobe light unit（15）；
Data processing unit（14）, the data processing unit（14）For controlling flash of light control module（11）, and to the thermal infrared imager（13）The heat wave image for being gathered carries out Data Management Analysis, and can store the data after before processing；
Touch screen displays (23), the touch screen displays (23) are for showing and operating system software interface, and the data before and after display processing；
Voltage-stabilized power supply（17）, the voltage-stabilized power supply（17）For being the thermal infrared imager（13）, data processing unit（14）And flash of light control module（11）The voltage of different demands is provided.
2. a kind of portable flash lamp according to claim 1 encourages heat wave nondestructive detection system, and its architectural feature is：The thermal infrared imager（13）, the strobe light unit（15）, the data processing unit（14）And touch screen displays（23）It is integrated, form excitation detection module（10）.
3. a kind of portable flash lamp according to claim 1 encourages heat wave nondestructive detection system, and its architectural feature is：The flash generator（16）, the voltage-stabilized power supply（17）And the flash of light control module（11）It is integrated, form power supply module（18）.
4. a kind of portable flash lamp according to claim 1 encourages heat wave nondestructive detection system, it is characterized by：The power supply module（18）With the excitation detection module（10）By connection cables（25）It is connected.
5. a kind of portable flash lamp according to claim 1 encourages heat wave nondestructive detection system, it is characterized by, the system further includes rechargeable battery（19）, the rechargeable battery（19）It is connected to the power supply module（18）On, it is the voltage-stabilized power supply（17）With the flash generator（16）Electric power is provided.
6. a kind of portable flash lamp according to claim 1 encourages heat wave nondestructive detection system, it is characterized by：Can be by the flash of light control module（11）To control the strobe light unit（15）Pulse energy and truncated time.
7. a kind of portable flash lamp according to claim 1 encourages heat wave nondestructive detection system, it is characterized by：The thermal infrared imager（13）Detection wavelength scope between 2-15 microns.
8. a kind of portable flash lamp according to claim 4 encourages heat wave nondestructive detection system, it is characterized by：The rechargeable battery（19）With pluggable characteristic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511027215.3A CN106932438A (en) | 2015-12-31 | 2015-12-31 | Portable flash lamp encourages heat wave nondestructive detection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511027215.3A CN106932438A (en) | 2015-12-31 | 2015-12-31 | Portable flash lamp encourages heat wave nondestructive detection system |
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| CN106932438A true CN106932438A (en) | 2017-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201511027215.3A Pending CN106932438A (en) | 2015-12-31 | 2015-12-31 | Portable flash lamp encourages heat wave nondestructive detection system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426911A (en) * | 2018-01-10 | 2018-08-21 | 中国航发北京航空材料研究院 | A kind of heat gun system for IR thermal imaging inspection |
| CN109632871A (en) * | 2018-11-22 | 2019-04-16 | 成都飞机工业（集团）有限责任公司 | A kind of system and detection method for carbon fibre composite Zone R non-destructive testing |
| CN110849936A (en) * | 2019-11-27 | 2020-02-28 | 云南电网有限责任公司电力科学研究院 | GIS pipeline defect online detection device and method |
| CN111380618A (en) * | 2020-03-23 | 2020-07-07 | 西南科技大学 | Portable light-excited infrared thermal imaging detection device with separately controlled light arrays |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426911A (en) * | 2018-01-10 | 2018-08-21 | 中国航发北京航空材料研究院 | A kind of heat gun system for IR thermal imaging inspection |
| CN109632871A (en) * | 2018-11-22 | 2019-04-16 | 成都飞机工业（集团）有限责任公司 | A kind of system and detection method for carbon fibre composite Zone R non-destructive testing |
| CN110849936A (en) * | 2019-11-27 | 2020-02-28 | 云南电网有限责任公司电力科学研究院 | GIS pipeline defect online detection device and method |
| CN111380618A (en) * | 2020-03-23 | 2020-07-07 | 西南科技大学 | Portable light-excited infrared thermal imaging detection device with separately controlled light arrays |
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