CN103822942B - Active xenon lamp array harmonic wave heat exciter - Google Patents
Active xenon lamp array harmonic wave heat exciter Download PDFInfo
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- CN103822942B CN103822942B CN201410070887.1A CN201410070887A CN103822942B CN 103822942 B CN103822942 B CN 103822942B CN 201410070887 A CN201410070887 A CN 201410070887A CN 103822942 B CN103822942 B CN 103822942B
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- xenon lamp
- lamp array
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- harmonic wave
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Abstract
The invention discloses a kind of active xenon lamp array harmonic wave heat exciter, including movable pedestal and xenon lamp array mechanism, xenon lamp array mechanism is connected with movable pedestal by rise and fall electric adjusting device, it is connected between xenon lamp array mechanism with rise and fall electric adjusting device and has pitch regulation device, power case is placed on movable pedestal, it is connected with harmonic controller, in power case, fixes multiple xenon lamp power supply by array format；This xenon lamp array mechanism includes insulation board, and this insulation board is provided with xenon lamp array, and this xenon lamp array is connected with power case, each xenon lamp in xenon lamp array is equipped with reflector, is provided with attitude adjuster below reflector；Xenon lamp array is arranged over shadow shield, and shadow shield is provided with loophole.The present invention uses xenon lamp array to heat, and the efficiency of heating surface is high, and heated perimeter is big, and the duration is long, heating object temperature rise.
Description
Technical field
The present invention relates to infra-red heat exciting bank, particularly relate to a kind of special be suitable for detecting for infrared thermal wave of movement
Active xenon lamp array harmonic excitation device.
Background technology
Infrared thermal wave NDT technology is a kind of brand-new, sensitive detection method, is also a kind of well monitoring method,
Its important feature be can quickly, noncontact, the surface of scanning detectable substance in large area.When interior of articles exists crack and defect
Time, it by changing the heat transfer of object, makes the distribution of body surface temperature create a difference, utilizes infrared thermography to measure its
Different heat radiations, can detect the defective locations of object, the method not damage check thing, visual result image, it is easy to accomplish
Automation and real-time monitored.Concrete material is a kind of heterogeneous heterogeneous composite material, the thermal expansion of the most each constituent phase
Performance all differs, and when environment temperature generation acute variation, can produce uneven thermal expansion in concrete between each component, produces
Heat stress, so that there is micro-crack in interface.China utilizes infrared thermal imaging technique for structural quality detection and safety
Assess also in the formation and development stage, and being first the most efficiently of problem demanding prompt solution, heat quilt uniformly
Survey concrete surface.
Infrared thermal wave thermal excitation technology is one of key technology of infrared thermal wave NDT, and the uniformity of thermal excitation is direct
Affect the quality of infra-red inspection thermal map, and also be related to the precision extracting object surface temperature difference.Apply at present mixed
The active exciting bank of solidifying soil detection field mainly has stroboscopic optical light pulses formula exciting device, and the deficiency of this energisation mode has:
(1) action time is short, it is impossible to persistently testee is heated to uniform temperature；
(2) lack of homogeneity, it is impossible to ensure to irradiate the uniformity of surface temperature；
(3) heated perimeter is little, it is impossible to testee is carried out large area irradiation；
(4) efficiency of heating surface is low, it is impossible to quickly heated by testee；
(5) machinery is non-adjustable, it is impossible to according to regulating working conditions irradiation area.
Summary of the invention
The technical problem to be solved in the present invention is for drawbacks described above of the prior art, it is provided that a kind of uniformly heating,
High efficiency, harmonic controling, simple in construction, area of detection are big, easy to operate, the active xenon lamp array of irradiated region mechanical adjustable is humorous
Ripple heat exciter.
The technical solution adopted for the present invention to solve the technical problems is:
There is provided a kind of active xenon lamp array harmonic wave heat exciter, including movable pedestal and xenon lamp array mechanism, xenon
Lamp array mechanism is connected with movable pedestal by rise and fall electric adjusting device, and xenon lamp array mechanism is electronic with rise and fall
Connect between adjusting means and have pitch regulation device, movable pedestal is placed power case, is connected with harmonic controller, power machine
Multiple xenon lamp power supply is fixed by array format in case；This xenon lamp array mechanism includes insulation board, and this insulation board is provided with xenon lamp battle array
Row, this xenon lamp array is connected with power case, each xenon lamp in xenon lamp array is equipped with reflector, sets below reflector
There is attitude adjuster；Xenon lamp array is arranged over shadow shield, and shadow shield is provided with loophole.
In active xenon lamp array harmonic wave heat exciter of the present invention, described loophole is square opening, square opening
Centre is provided with circular baffle plate, and the diameter of this circular baffle plate is slightly larger than the diameter of xenon short-arc lamp.
In active xenon lamp array harmonic wave heat exciter of the present invention, rise and fall electric adjusting device with can move
Being connected by guide rail mechanism between dynamic base, this guide rail mechanism includes moving in parallel bar and lamp battle array bearing, moves in parallel bar and arranges
On movable pedestal, lamp battle array bearing is provided with two-direction switch and motor, and bottom is provided with pulley, lamp battle array bearing and rise and fall
Electric adjusting device is connected by power transmission shaft, and power transmission shaft is connected with one end of motor.
In active xenon lamp array harmonic wave heat exciter of the present invention, the other end of motor fills with hand transmission
Putting connection, hand crank transmission device is connected with rise and fall electric adjusting device.
In active xenon lamp array harmonic wave heat exciter of the present invention, four, the bottom of movable pedestal pin sets
Having roller, multiple xenon lamp power supply is fixed by array format, for xenon lamp powering arrays in placing power case, power case in top.
In active xenon lamp array harmonic wave heat exciter of the present invention, harmonic controller includes that function signal occurs
Device and power amplifier, function signal generator is connected with power amplifier, and power amplifier is connected with power case, this power
The sinewave modulation signal that function signal generator produces is divided into independent multipath signal propagation to xenon lamp power supply by amplifier.
In active xenon lamp array harmonic wave heat exciter of the present invention, lamp battle array bearing is metal thick plate.
In active xenon lamp array harmonic wave heat exciter of the present invention, reflector is parabolic reflecting bowl.
In active xenon lamp array harmonic wave heat exciter of the present invention, in xenon lamp array between each two xenon lamp
Centre distance is slightly larger than the external diameter of reflector.
The beneficial effect comprise that: the active xenon lamp array harmonic wave heat exciter of the present invention uses xenon lamp battle array
Row heat, and the efficiency of heating surface is high, and heated perimeter is big, and the duration is long, heating object temperature rise.Use harmonic controling mould
Block, can carry out the control of entirety, it is possible to individually control single module light source group to array of source.Regulated by mechanical part
The position of xenon lamp array, can make device heat diverse location at differing heights.By the loophole of shadow shield, to circle
Hot spot is modified, and obtains uniform rectangular illumination hot spot.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention active xenon lamp array harmonic wave heat exciter.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, not
For limiting the present invention.
As it is shown in figure 1, the embodiment of the present invention active xenon lamp array harmonic wave heat exciter, including movable pedestal and xenon
Lamp array mechanism, xenon lamp array mechanism is connected with movable pedestal by rise and fall electric adjusting device 7, xenon lamp array mechanism
Being connected with between rise and fall electric adjusting device and have pitch regulation device 6, this xenon lamp array mechanism includes insulation board 3, this insulation
Plate 3 is the insulation board of high intensity.This insulation board 3 is provided with xenon lamp array, and wherein the number of xenon lamp is by the irradiated area institute designed
Determining, this xenon lamp array is connected with power case 11, and each xenon lamp 4 in xenon lamp array is equipped with reflector 5, reflector
Attitude adjuster it is provided with, for regulating the attitude of reflector 5, so that what each xenon lamp irradiated is directional light below 5；Xenon lamp battle array
Row are arranged over shadow shield 1, and shadow shield 1 is provided with loophole.Shadow shield 1 can be fixed on a braced frame 2, braced frame
2 are fixed on pitching regulating device 6.Braced frame 2 includes the insulation board 3 of rigid frame and high intensity.
The operation principle of xenon lamp array: the xenon lamp reflector 5 of employing can be parabolic reflecting bowl, the adjacent reflector of each two
5 centre distances are slightly larger than the external diameter of reflector.I.e. in xenon lamp array centre distance between each two xenon lamp slightly larger than reflector
External diameter.When light source is at its focal point, the light irradiated is directional light.The position of regulation light source, makes light source deviation Jiao
Point certain distance, can make the hot spot irradiated become big, obtain required spot size with this.When light source is at distance concrete surface
Heat at correct position, adjust circular light spot diameter and the center of adjacent spots being irradiated to object (such as concrete) surface
Away from so that it is size and location meets needs.First the approximately parallel hot spot that xenon lamp irradiates is irradiated on shadow shield 1, shading
Have on plate 1 and xenon lamp array loophole one to one, have a square slightly larger than xenon lamp diameter in the middle of loophole, with xenon
Lamp one_to_one corresponding.Light is irradiated on concrete after loophole, forms square focus spot array, and square focus spot diameter adjustment is extremely
Suitable size, makes adjacent spots overlap two-by-two, and ensures the area in coincidence district, reach adjacent spots and splice and compensate edge temperature
Purpose.Wherein the temperature of overlapping region compensate for the problem that edge temperature is relatively low, the effective fall of square at loophole center
The low temperature at rectangular light spot center, thus obtain uniform large-scale rectangular hot spot.
Rise and fall electric adjusting device 7 is made by metallic rod, is used for regulating the upright position of xenon lamp array light source；
Pitch regulation device 6 is made by fan-shaped metallic plate, is used for regulating the angle of inclination of xenon lamp array light source.
In one embodiment of the present of invention, described loophole is square opening, is provided with circular baffle plate in the middle of square opening, this circle
The diameter of baffle plate is slightly larger than the diameter of xenon short-arc lamp.This square opening be slightly less than be radiated at shadow shield 1 circular light spot in just connect
Square.By loophole, circular light spot is modified, available uniform rectangular illumination hot spot.
In one embodiment of the present of invention, by guide rail machine between rise and fall electric adjusting device 7 and movable pedestal
Structure connects, and this guide rail mechanism includes moving in parallel bar 15 and lamp battle array bearing 14, moves in parallel bar 15 and be arranged on movable pedestal,
Lamp battle array bearing 14 is provided with two-direction switch 16 and motor 8, is provided with pulley 9 bottom lamp battle array bearing 14, can move in parallel bar 15
Upper movement, thus ensure that lamp battle array bearing 14 moves before and after in the horizontal direction.
Lamp battle array bearing 14 is connected by power transmission shaft 17 with rise and fall electric adjusting device 7, power transmission shaft 17 and motor 8
One end connects.Power transmission shaft 17 is perpendicular to lamp battle array bearing 14, and drive link 17 is under the driving of motor 8, electronic by rise and fall
Adjusting means 7 drives and moves under pitch regulation device in the vertical direction, the irradiating angle of pitch regulation device regulation xenon lamp array.
Two-direction switch 16 can control the rotating of motor；Lamp battle array bearing 14 can be metal thick plate, by pulley 9 with parallel
Mobile bar 15 connects.Moving in parallel bar 15 can be cylinder type metal bar, is fixed on movable pedestal.
In another embodiment of the invention, the other end of motor 8 also can be with hand crank transmission device (not shown)
Connect, optional motor or hand two kinds of kinds of drive.Manual setter is attached on the keyway of motor reel.Hand transmission
Device is connected with rise and fall electric adjusting device 7.By using manpower to carry out moving up and down of power transmission shaft 17, thus realize little
Distance fine regulation.
Four, the bottom of movable pedestal pin is provided with roller, and power case 11 is placed in top, by battle array in power case 11
Row form fixes multiple xenon lamp power supply, and fixing harmonic controling module and the plug etc. of power supply.
Harmonic controller includes function signal generator 12 and power amplifier 13, function signal generator 12 and power machine
Case 11 connects, and power amplifier 13 is connected with xenon lamp array.Function signal generator 12 produces the modulation letter of sinusoidal rule change
Number, the parameter (amplitude, frequency and phase place) of the sine wave signal that function signal generator 12 produces is adjustable, the merit of power amplifier
Rate output is also adjustable.The maximin that xenon lamp power supply stops voltage, output electric current and signal in advance is adjusted
System, so that xenon lamp array works in stability range.Modulated signal is divided into independent multichannel by power amplifier 13 to be carried out
Signal transmits, and respectively xenon lamp power supply provides modulated signal.Xenon lamp power supply is used for, to xenon lamp powering arrays, using external control
Time, one to be added by string hole to xenon lamp power supply and control voltage.Modulated signal passes through serial ports to xenon after power amplifier 13
Lamp power supply carries out external control, and the intensity of illumination of xenon lamp array will carry out regular change according to the sinusoidal signal modulated
Change.
To sum up, the active xenon lamp array harmonic wave heat exciter of the present invention uses high power xenon lamp array to heat,
The efficiency of heating surface is high, and heated perimeter is big, and the duration is long, heating object temperature rise.Use harmonic controling module, can be to light source battle array
Row carry out the control of entirety, it is possible to individually control single module light source group.Position by mechanical part regulation xenon lamp array
Put, device can be made at differing heights, diverse location to be heated.By the loophole of shadow shield, circular light spot is repaiied
Just, uniform rectangular illumination hot spot is obtained.
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted,
And all these modifications and variations all should belong to the protection domain of claims of the present invention.
Claims (6)
1. an active xenon lamp array harmonic wave heat exciter, it is characterised in that include movable pedestal and xenon lamp array computer
Structure, xenon lamp array mechanism is connected with movable pedestal by rise and fall electric adjusting device, under xenon lamp array mechanism and rising
Connect between fall electric adjusting device and have pitch regulation device, movable pedestal is placed power case, is connected with harmonic controller,
Multiple xenon lamp power supply is fixed by array format in power case；This xenon lamp array mechanism includes insulation board, and this insulation board is provided with
Xenon lamp array, this xenon lamp array is connected with power case, and each xenon lamp in xenon lamp array is equipped with parabolic reflecting bowl,
Xenon lamp is in the focal point of parabolic reflecting bowl, outwards irradiates uniform high-power circular light spot；Appearance it is provided with below reflector
State adjuster；Xenon lamp array is arranged over shadow shield, and shadow shield is provided with loophole；
Described loophole is square opening, is provided with circular baffle plate in the middle of square opening, and the diameter of this circular baffle plate is slightly larger than xenon short-arc lamp
Diameter；High-power circular light spot is modulated to rectangular light spot by loophole；
Harmonic controller includes function signal generator and power amplifier, and function signal generator is connected with power case, merit
Rate amplifier is connected with xenon lamp array；Function signal generator produces the modulated signal of sinusoidal rule change；In advance to xenon lamp electricity
The maximin stopping voltage, output electric current and signal in source is modulated, so that xenon lamp array is in stability range
Interior work；
Modulated signal is divided into independent multichannel and carries out signal transmission, respectively xenon lamp power supply offer modulation letter by power amplifier
Number；Xenon lamp power supply is used for xenon lamp powering arrays, when using external control, adds one by serial ports to xenon lamp power supply and controls electricity
Pressure；
Modulated signal carries out external control by serial ports to xenon lamp power supply after power amplifier, and the intensity of illumination of xenon lamp array is just
Regular change can be carried out according to the sinusoidal signal modulated.
Active xenon lamp array harmonic wave heat exciter the most according to claim 1, it is characterised in that rise and fall are electronic
Being connected by guide rail mechanism between adjusting means with movable pedestal, this guide rail mechanism includes moving in parallel bar and lamp battle array bearing,
Moving in parallel bar to be arranged on movable pedestal, lamp battle array bearing is provided with two-direction switch and motor, and bottom is provided with pulley, lamp battle array
Bearing is connected by power transmission shaft with rise and fall electric adjusting device, and power transmission shaft is connected with one end of motor.
Active xenon lamp array harmonic wave heat exciter the most according to claim 1, it is characterised in that motor another
One end is connected with hand crank transmission device, and hand crank transmission device is connected with rise and fall electric adjusting device.
Active xenon lamp array harmonic wave heat exciter the most according to claim 1, it is characterised in that movable pedestal
Four pin in bottom are provided with roller.
Active xenon lamp array harmonic wave heat exciter the most according to claim 2, it is characterised in that lamp battle array bearing is gold
Belong to slab.
Active xenon lamp array harmonic wave heat exciter the most according to claim 1, it is characterised in that every in xenon lamp array
Centre distance between two xenon lamps is slightly larger than the external diameter of reflector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410070887.1A CN103822942B (en) | 2014-02-28 | 2014-02-28 | Active xenon lamp array harmonic wave heat exciter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410070887.1A CN103822942B (en) | 2014-02-28 | 2014-02-28 | Active xenon lamp array harmonic wave heat exciter |
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| Publication Number | Publication Date |
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| CN103822942A CN103822942A (en) | 2014-05-28 |
| CN103822942B true CN103822942B (en) | 2016-08-17 |
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| CN201410070887.1A Expired - Fee Related CN103822942B (en) | 2014-02-28 | 2014-02-28 | Active xenon lamp array harmonic wave heat exciter |
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| 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 |
| CN110146547A (en) * | 2019-05-07 | 2019-08-20 | 上海工程技术大学 | A kind of infrared thermal wave NDT device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2903983Y (en) * | 2005-12-02 | 2007-05-23 | 首都师范大学 | Ordinary flash lamp heat exciting device for infrared heat wave nondestructive detection |
| CN1766595B (en) * | 2005-12-02 | 2010-07-28 | 首都师范大学 | Method and apparatus for improving absorptivity and emissivity in infrared thermal wave non-destructive detection |
| US20090000382A1 (en) * | 2006-07-31 | 2009-01-01 | University Of Dayton | Non-contact acousto-thermal method and apparatus for detecting incipient damage in materials |
| CN202305452U (en) * | 2011-08-10 | 2012-07-04 | 首都师范大学 | High-power radiation type thermal excitation device and system for infrared detection |
| DE102012008531B4 (en) * | 2012-04-07 | 2014-02-13 | INPRO Innovationsgesellschaft für fortgeschrittene Produktionssysteme in der Fahrzeugindustrie | Method for non-destructive testing of a joining connection of a component by means of induction thermography and arrangement for carrying out the method |
| CN203732479U (en) * | 2014-02-28 | 2014-07-23 | 武汉理工大学 | Active type xenon lamparrayharmonicthermal excitation device |
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Non-Patent Citations (1)
| Title |
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| 不同激励方式的脉冲氙灯对不同牙体照射的温升研究;孙涛;《应用激光》;20040831;第24卷(第4期);第250-256页 * |
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Granted publication date: 20160817 Termination date: 20190228 |