CN203810293U - Thermal excitation device - Google Patents
Thermal excitation device Download PDFInfo
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- CN203810293U CN203810293U CN201420193571.7U CN201420193571U CN203810293U CN 203810293 U CN203810293 U CN 203810293U CN 201420193571 U CN201420193571 U CN 201420193571U CN 203810293 U CN203810293 U CN 203810293U
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- flash lamp
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- shading
- sheet
- computer
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Abstract
The utility model discloses a thermal excitation device. The thermal excitation device is applied to the field of thermal excitation and can effectively avoid the sunset glow effect generated in pulse infrared detection in the prior art. The thermal excitation device comprises at least one flash lamp and further comprises a computer, an electromagnetic control device, a flash lamp control device and a shading screen, wherein a first link of the computer is connected with the electromagnetic control device, and the electromagnetic control device controls the position and the state of shading screen; a second link of the computer is connected with the flash lamp control device, the flash lamp control device is connected with the flash lamps, and the flash lamp control device controls trigger of the flash lamps. The thermal excitation device is suitable for pulse infrared detection.
Description
Technical field
The utility model relates to thermal excitation field, relates in particular to a kind of heat exciter.
Background technology
Pulsed infrared detection technique is the most ripe and most widely used lossless detection method at field of non destructive testing.The method is general adopts two high-energy flashlamps as thermal excitation source, test specimen is applied to the wide instantaneous high-energy hot-fluid pulse excitation for 2-5 millisecond, utilize the pulse of instantaneous high-energy hot-fluid existing the reflection of the member of defect or damage and the inhomogeneities of material internal conduction, heat wave stream and the surface temperature difference that accumulation causes to carry out infrared imaging, conventionally on thermal infrared imager, carry out infrared imaging, and be presented on computer screen, and then the detection damaging and flaw detection.
But the instantaneous high-energy hot-fluid pulse that flash lamp flash of light produces not is desirable pulse, after flash lamp flash of light, often also has larger waste heat, can within one period of long period, give off stronger infra-red radiation light, these IRs can and reflex on thermal infrared imager by the stack of test specimen surface, accurately image on thermal infrared imager and image are processed and are produced larger impact, sunset clouds effect that Here it is.
Sunset clouds effect can have a strong impact on detection effect, therefore, how to design and develop the heat exciter that can effectively intercept flash lamp sunset clouds effect, is that pulsed infrared detects the important technological problems that must further investigate and solve.
summary of the invention
The utility model provides a kind of heat exciter, can effectively avoid the sunset clouds effect carrying out producing when pulsed infrared detects of the prior art.
First aspect of the present utility model provides a kind of heat exciter, comprises at least one flash lamp, also comprises: computer, electromagnetic control apparatus, device for controlling flashlight and anti-dazzling screen; Wherein, electromagnetic control apparatus described in the Article 1 link connection of described computer, the location status of anti-dazzling screen described in described electromagnetic control apparatus control; Device for controlling flashlight described in the Article 2 link connection of described computer, described device for controlling flashlight connects described flash lamp, the triggering of flash lamp described in described device for controlling flashlight control.
According to first aspect, in the possible implementation of the first, described anti-dazzling screen is venetian blind type, and wherein said anti-dazzling screen comprises at least three sub-sheets of shading, and the every sub-sheet of described shading is connected by fine rule.
The implementation possible according to the first of first aspect or first aspect, in the possible implementation of the second, when described flash lamp is during by device for controlling flashlight trigger flashing, the sub-sheet of described shading is vertical with described flash lamp; In the time that described flash lamp finishes to glisten, the sub-sheet of described shading is parallel with described flash lamp.
The implementation possible according to the first of first aspect or first aspect, in the third possible implementation, described electromagnetic control apparatus comprises iron core, coil, armature and back-moving spring; The one end that connects the fine rule of the sub-sheet of described shading connects described back-moving spring, and the other end connects described armature; Coil described in described iron core overcoat.
The heat exciter that the utility model provides, in the time that flash lamp flash of light finishes, the sub-sheet of shading is parallel with flash lamp, avoids the sunset clouds effect carrying out producing when pulsed infrared detects of the prior art, has improved detection effect.
brief description of the drawings
Fig. 1 is the structural representation of the utility model heat exciter embodiment mono-;
Fig. 2 is flash lamp and the anti-dazzling screen position view of the utility model heat exciter;
Fig. 3 is the structural representation of the anti-dazzling screen of the utility model heat exciter;
Fig. 4 is the anti-dazzling screen open mode schematic diagram of the utility model heat exciter;
Fig. 5 is the anti-dazzling screen closed condition schematic diagram of the utility model heat exciter.
Reference numeral:
11: flash lamp; 12: computer;
13: electromagnetic control apparatus; 14: device for controlling flashlight;
15: anti-dazzling screen; 31: the sub-sheet of shading; 32: fine rule;
41: iron core, 42: coil; 43: armature; 44: back-moving spring.
Detailed description of the invention
For making object, technical scheme and the advantage of the utility model embodiment clearer, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model proposes a kind of heat exciter, heat exciter is the most important equipment that pulsed infrared detects, and conventionally adopts high-energy flashlamp as thermal excitation source, will the utility model be described with concrete example below.It should be noted that, the utility model does not limit the quantity of flash lamp.
Fig. 1 is the structural representation of the utility model heat exciter embodiment mono-.As shown in Figure 1, the heat exciter of the present embodiment, comprises at least one flash lamp 11, computer 12, electromagnetic control apparatus 13, device for controlling flashlight 14 and anti-dazzling screen 15.Wherein, as shown in Figure 1, the Article 1 link connection electromagnetic control apparatus 13 of computer 12, electromagnetic control apparatus 13 is controlled the location status of anti-dazzling screen 15; The Article 2 link connection device for controlling flashlight 14 of computer, device for controlling flashlight 14 connects flash lamp 11, and device for controlling flashlight 14 is controlled the triggering of flash lamp 11.
In above-mentioned heat exciter, anti-dazzling screen 15 is venetian blind type, and this anti-dazzling screen comprises that the sub-sheet 31(of several shadings is with reference to shown in figure 3), preferably at least three sub-sheets of shading.When flash lamp 11 is during by device for controlling flashlight 14 trigger flashing, the sub-sheet 31 of shading is vertical with flash lamp 11, and this state is anti-dazzling screen 15 open modes; In the time that flash lamp 11 finishes flash of light, the sub-sheet 31 of shading is parallel with flash lamp 11, and this state is anti-dazzling screen 15 closed conditions.
Particularly, with reference to shown in figure 2.For convenience of description, Fig. 2 only illustrates two flash lamps.Below two flash lamps, add respectively the anti-dazzling screen 15 of venetian blind type, and control its folding by electromagnetic control apparatus 13.The design of the sub-sheet 31(of several pieces shadings anti-dazzling screen is as shown in Figure 3) equally spaced two flash lamp belows, the formation louver type baffle of being arranged on.The every sub-sheet 31 of shading is connected by fine rule 32, and while dropping fine rule, the sub-sheet 31 of all shadings can rotate simultaneously.When flash lamp flash of light, the sub-sheet 31 of shading is vertical with flash lamp 11, does not affect exposure of flash lamp effect; When flash of light finishes, the sub-sheet 31 of shading is parallel with flash lamp 11, can effectively stop the sunset clouds effect that flash lamp produces.
Above-mentioned electromagnetic control apparatus 13 is for switching the location status of anti-dazzling screen 15, with reference to shown in figure 4 and Fig. 5, (Fig. 4 is the anti-dazzling screen open mode schematic diagram of the utility model heat exciter, Fig. 5 is the anti-dazzling screen closed condition schematic diagram of the utility model heat exciter), this electromagnetic control apparatus 15 comprises iron core 41, coil 42, armature 43 and back-moving spring 44.The one end that connects the fine rule 32 of the sub-sheet 31 of shading connects back-moving spring 44, and the other end connects armature 43.Iron core 41 overcoat coils 42.Before flash lamp 11 flashes of light and while flash of light, coil 42 no powers, the sub-sheet 31 of shading keeps vertical with flash lamp 11; After flash lamp 11 flashes of light, coil 42 is switched on, thereby produces galvanomagnetic-effect, and armature 43 overcomes the pulling force of back-moving spring 44 under the effect of electromagnetic force to be inhaled to iron core 41, and iron core 41 drops fine rule 32, makes the sub-sheet 31 of shading parallel with flash lamp 11.After detection finishes, coil 42 power-off, electromagnetic attraction also disappears thereupon, and the sub-sheet 31 of shading returns to origin-location under the effect of back-moving spring 44, and the sub-sheet 31 of shading is vertical with flash lamp 11.
Flash lamp 11 and electromagnetic control apparatus 13 unifications are controlled by computer 12, and device for controlling flashlight 14 is controlled on the signal that computer 12 sends or instruction one tunnel, and electromagnetic control apparatus 13 is controlled on another road.With reference to figure 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, workflow is as follows: for example, computer 12 first starts the collection of infrared thermal wave image, complete after 20 frames collections, computer 12 sends instruction triggers flash lamp 11 and glistens, flash time is generally 2ms, after postponing 2ms, computer 12 sends another road instruction unlatching electromagnetic control apparatus 13 again, the coil 43 being wrapped on iron core 41 is switched on, produce galvanomagnetic-effect, armature 43 overcomes the pulling force of back-moving spring 44 and inhales to iron core 41 under the effect of electromagnetic force, iron core 41 drives fine rule 32 to move, fine rule 32 drops shading 31 moments of sub-sheet and becomes level, flash lamp 11 is all covered, thereby avoid flash lamp sunset clouds effect.After IMAQ completes, computer 12 sends instruction and cuts out electromagnetic control apparatus 13.Because electromagnetic control apparatus 13 reactions are quick, action moment completes, and can meet the demands.After detection finishes, computer 12 control coil 42 power-off, the suction of electromagnetism also disappears thereupon, and fine rule 32 drops the sub-sheet 31 of shading and returns to origin-location under the effect of back-moving spring 44, makes the sub-sheet 31 of shading and flash lamp 11 recover initial plumbness.
The heat exciter that the utility model provides, while flash of light by being triggered when flash lamp, the sub-sheet of shading is vertical with flash lamp; In the time that flash lamp flash of light finishes, the sub-sheet of shading is parallel with flash lamp, avoids the sunset clouds effect carrying out producing when pulsed infrared detects of the prior art, has improved detection effect.
Finally it should be noted that: above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of the each embodiment technical scheme of the utility model.
Claims (4)
1. a heat exciter, comprises at least one flash lamp, it is characterized in that, also comprises: computer, electromagnetic control apparatus, device for controlling flashlight and anti-dazzling screen; Wherein, electromagnetic control apparatus described in the Article 1 link connection of described computer, the location status of anti-dazzling screen described in described electromagnetic control apparatus control; Device for controlling flashlight described in the Article 2 link connection of described computer, described device for controlling flashlight connects described flash lamp, the triggering of flash lamp described in described device for controlling flashlight control.
2. heat exciter according to claim 1, is characterized in that, described anti-dazzling screen is venetian blind type, and wherein said anti-dazzling screen comprises at least three sub-sheets of shading, and the every sub-sheet of described shading is connected by fine rule.
3. heat exciter according to claim 1 and 2, is characterized in that, when described flash lamp is during by device for controlling flashlight trigger flashing, the sub-sheet of described shading is vertical with described flash lamp; In the time that described flash lamp finishes to glisten, the sub-sheet of described shading is parallel with described flash lamp.
4. heat exciter according to claim 1 and 2, is characterized in that, described electromagnetic control apparatus comprises iron core, coil, armature and back-moving spring; The one end that connects the fine rule of the sub-sheet of described shading connects described back-moving spring, and the other end connects described armature; Coil described in described iron core overcoat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420193571.7U CN203810293U (en) | 2014-04-21 | 2014-04-21 | Thermal excitation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420193571.7U CN203810293U (en) | 2014-04-21 | 2014-04-21 | Thermal excitation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203810293U true CN203810293U (en) | 2014-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420193571.7U Expired - Fee Related CN203810293U (en) | 2014-04-21 | 2014-04-21 | Thermal excitation device |
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| CN (1) | CN203810293U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106932438A (en) * | 2015-12-31 | 2017-07-07 | 南京诺威尔光电系统有限公司 | Portable flash lamp encourages heat wave nondestructive detection system |
-
2014
- 2014-04-21 CN CN201420193571.7U patent/CN203810293U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106932438A (en) * | 2015-12-31 | 2017-07-07 | 南京诺威尔光电系统有限公司 | Portable flash lamp encourages heat wave nondestructive detection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20180421 |