CN205679527U - A kind of material reflectance dynamic measurement system varied with temperature - Google Patents
A kind of material reflectance dynamic measurement system varied with temperature Download PDFInfo
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- CN205679527U CN205679527U CN201620604998.0U CN201620604998U CN205679527U CN 205679527 U CN205679527 U CN 205679527U CN 201620604998 U CN201620604998 U CN 201620604998U CN 205679527 U CN205679527 U CN 205679527U
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Abstract
The utility model discloses a kind of material reflectance dynamic measurement system varied with temperature, including measuring samples, spectroscope, reflective light intensity change test system and temperature data test system, measuring samples connects with corresponding reflective light intensity change test system or temperature data test system respectively, being provided with opto-electronic conversion trigger between reflective light intensity change test system and temperature data test system, opto-electronic conversion trigger is connected with reflective light intensity change test system and temperature data test system simultaneously.Native system can obtain in laser irradiation process, metal material, pottery and macromolecule polymer material locus have the reflectance of more accurate corresponding relation characteristic point and vary with temperature curve, realize analysis and the assessment of material laser irradiation heat effect, there is provided foundation for the laser processing procedure such as cut, laser cleaning optimizes laser parameter, reach to improve laser energy utilizing rate, reduce the economic interests such as processing cost.
Description
Technical field
This utility model belongs to the measurement system of optical field, is specifically related to a kind of material reflectance varied with temperature and moves
State measures system.
Background technology
First laser reflect and from the beginning of absorption from material on incident laser energy with the interaction of material, material
To the initial reflection characteristic of laser and laser work system (continuously, pulse, repetition etc.), optical maser wavelength, and material category, table
The factors such as planar condition, radiation environment are relevant.In the mechanisms such as Laser Processing, surface clean, inhaled by various coupling mechanisms
The material receiving laser energy will produce the responses such as calorifics, mechanics, chemistry, and the response such as these physics, chemistry etc. of material causes its table
Surface properties changes, and will affect the reflection characteristic of material for laser light energy in turn.Visible, affect material irradiated at laser
In journey, the factor of reflectance change is a lot, and is that various factors is coupled often, therefore is difficult to from theoretical angle pair
It is quantitatively described, and at present, the situation of change of reflectance in material laser irradiation process is entered by the method relying primarily on experiment
Row is measured.Therefore, develop or improve reflectance experiment test system and method, just become in laser technology application and relatively attach most importance to
The work wanted.
Owing to laser has purposes and wide expansion prospect widely, such as laser welding, laser at military, civil area
Cleaning, cut etc., therefore, state, the inside and outside foundation the most all taking much count of material laser reflectance test System and method for and
Improve, to meet the demand of associated laser technology application, such as calorimeter device, radiometer package and reflectometer apparatus etc..Wherein,
Integrating sphere reflexometer is the device that reflectance kinetic measurement is more commonly used during laser exposed material, with hermetic container, rotation
The devices such as platform combine, and can be used for Laser Processing reality multiple to different component gases static environment, pressure, incident angles etc.
Under the conditions of, material is the kinetic measurement of reflectance in laser irradiation process.
Utilize in the material reflectance kinetic measurement that integrating sphere reflexometer carries out varying with temperature under laser irradiation, it is common that
Material surface by laser irradiation is carried out albedo measurement, to the material surface of non-Stimulated Light irradiation with sweating heat galvanic couple etc.
Mode carries out temperature survey, realizes the material reflectance kinetic measurement varied with temperature, is obtained by this measuring method
Material reflectance varies with temperature curve or data, is not actual locus corresponding relation, due to material laser irradiation table
The temperature in face is consistently higher than non-Stimulated Light irradiating surface so that reflectance varies with temperature temperature variable in curve and occurs in that delay
Phenomenon.It addition, it is wafer state that this measuring method needs to seek material, it is achieved the temperature of non-Stimulated Light irradiating surface thermocouple measurement point
The temperature that degree replaces by laser irradiating surface albedo measurement point, but along with material science and technology development with enter
Step, extremely difficult by modes such as traditional mechanical processing or such as brittle ceramic, macromolecule polymer material etc. cannot be realized thin slice
The processing of state or process, and this type of material have cannot the practical situation of sweating heat galvanic couple.
Utility model content
For accurately obtaining metal material, pottery and macromolecule polymer material, material reflection in laser irradiation process
Rate varies with temperature curve, and this utility model provides a kind of material reflectance dynamic measurement system varied with temperature.
This utility model is achieved through the following technical solutions:
A kind of material reflectance dynamic measurement system varied with temperature, becomes including measuring samples, spectroscope, reflective light intensity
Changing test system and temperature data test system, described measuring samples changes test system or temperature with corresponding reflective light intensity respectively
Degrees of data test system connects, and is provided with for synchronizing between reflective light intensity change test system and temperature data test system
Triggering reflective light intensity test system and the opto-electronic conversion trigger of temperature data test system, the two test system is in parallel closing
System, spectroscope is arranged between measuring samples or in reflective light intensity change test system or measuring samples and opto-electronic conversion trigger
Between.Opto-electronic conversion trigger guarantees that reflecting light variable signal realizes synchro measure with temperature signal, utilizes integrating sphere for eliminating
Reflexometer is commonly used measurement process in which materials reflectance and is varied with temperature the delay phenomenon that in curve, temperature variable occurs, obtains space
Position has the reflectance of more accurate corresponding relation characteristic point metal material, pottery and macromolecule polymer material and becomes with temperature
Change curve, it is achieved laser and material mutually during accurately the estimating of optimum laser parameter, and then reduce laser machine cost and
Improve efficiency of energy utilization, need a kind of material reflectance dynamic measurement system varied with temperature badly, for preferably disclosing material
Material laser irradiating effects mechanism is assessed with heat effect.At present, from the point of view of the document of the openest report, there is not yet and can solve
The certainly technology of the problems referred to above.This programme is for two blocks of identical materials, forms identical laser irradiation conditions by light path design,
Carrying out albedo measurement in a block of material non-heated laser irradiated surface, another block of material non-heated laser irradiated surface identical point is carried out
Temperature survey, it is established that albedo measurement point corresponding relation equal with the position of temperature measuring point, and utilize synchronizer trigger part
Realizing the synchro measure of temperature, reflectance, the dynamic reflective rate obtaining material in laser irradiation process varies with temperature curve.
Wherein measuring samples includes albedo measurement sample and temperature survey sample, and albedo measurement sample and reflection light
Strong change test system connects, and temperature survey sample is connected with temperature data test system, and light beam is that transmitting effect is in measuring sample
Annexation is formed on product.Material sample physical dimension and sample size, laser irradiation density and beam size simultaneously
Meet the requirements.
Further, reflective light intensity change test system is mainly by exploring laser light bundle, integrating sphere and data acquisition instrument
Part is constituted, and integrating sphere is divided into test integrating sphere and connects with reference to integrating sphere, test integrating sphere and albedo measurement sample, and test is long-pending
Bulb separation connects photodetector one, and connecting with reference to integrating sphere has photodetector two, photodetector one and photodetector
Two are all connected with data acquisition instrument part, and opto-electronic conversion trigger connects data acquisition instrument part respectively and surveys with temperature data
Test system, forms reflectance and measures while temperature, and the spectroscope being arranged in reflective light intensity change test system is arranged on
On the path of exploring laser light bundle, and being provided with lens between this spectroscope and test integrating sphere, lens are arranged on detection and swash
On the path of light beam.Integrating sphere is the collection device of reflective light intensity change, and photodetector is the measuring device of reflective light intensity change
Part, the photodetector being arranged on two integrating sphere detection mouths starts to measure reflective light intensity variable signal and detection light beam output work
While rate variable signal, the variable signal data that data acquisition instrument part synchronous acquisition is corresponding with record.Above-mentioned parts are all
It is existing matured product, it is possible to be the most directly commercially available.
Temperature data test system includes thermocouple and dynamic temperature measurement device, and thermocouple and dynamic temperature measurement device are connected with each other,
Thermocouple is fixed with temperature survey sample, is not connected with, opto-electronic conversion between reflective light intensity change test system and dynamic temperature measurement device
Trigger connects data acquisition instrument part respectively and tests system with temperature data, forms reflectance and measures while temperature,
Thermocouple and dynamic temperature measurement device are all existing matured products, it is possible to be the most directly commercially available.
Spectroscope includes high spectroscope, 45 degree of 5/5 spectroscope and spectroscope three thoroughly, and wherein 5/5 spectroscope makes to act on
Albedo measurement sample is identical with the heating beam energy of temperature survey sample surfaces, and spectroscope three is arranged on exploring laser light bundle
On path；Also including heating laser bundle, the saturating spectroscope of described height and 45 degree of 5/5 spectroscope are arranged at the path of heating laser bundle
On, 45 degree of 5/5 spectroscope is arranged on high thoroughly between spectroscope and albedo measurement sample；Albedo measurement sample and temperature survey
Sample has equal light path away from 45 degree of 5/5 spectroscope.Heating laser bundle output action while two pieces of specimen material surfaces,
Heating laser bundle triggers opto-electronic conversion trigger and causes the photodetector being arranged on two integrating sphere detection mouths, starts same pacing
The variable signal of amount material reflective light intensity and the variable signal of detection beam output power.Albedo measurement sample and temperature survey
The normal of sample surfaces is plumbness, and heating laser Shu Junyu albedo measurement sample is vertical with temperature survey sample surfaces；
The central point of heating laser bundle exposure beam overlaps with the central point of albedo measurement sample and temperature survey sample surfaces.Reflection
Light intensity measure of the change point is the central point of non-heated laser beam irradiating surface, and variations in temperature measures point for non-heated laser beam irradiation
The central point on surface.
This utility model compared with prior art, has such advantages as and beneficial effect: native system can obtain laser spoke
During according to, metal material, pottery and macromolecule polymer material locus have more accurate corresponding relation characteristic point
Reflectance varies with temperature curve, it is achieved the analysis of material laser irradiation heat effect and assessment, for cut, laser cleaning etc.
Laser processing procedure optimizes laser parameter foundation is provided, reach to improve laser energy utilizing rate, reduce the warps such as processing cost
Ji interests.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by this utility model embodiment, constitutes the one of the application
Part, is not intended that the restriction to this utility model embodiment.In the accompanying drawings:
Fig. 1 is connection diagram of the present utility model.
The parts title of labelling and correspondence in accompanying drawing:
1-heating laser bundle, the high spectroscope thoroughly of 2-, 3-45 degree 5/5 spectroscope, 4-albedo measurement sample, 5-tests integration
Ball, 6-spectroscope three, 7-exploring laser light bundle, 8-is with reference to integrating sphere, 9-photodetector two, 10-photodetector one, 11-number
According to acquisition and recording device, 12-dynamic temperature measurement device, 13-temperature survey sample, 14-thermocouple, 15-opto-electronic conversion trigger, 16-
Guide light, 17-lens.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment and accompanying drawing,
The utility model is described in further detail, and exemplary embodiment of the present utility model and explanation thereof are only used for explaining this
Utility model, is not intended as restriction of the present utility model.
Embodiment:
As it is shown in figure 1, the test sample of two pieces of equal state is placed according to shown in Fig. 1, it is desirable to two pieces of test samples
There is equal air line distance away from 45 degree of 5/5 spectroscope 3, and test sample surface normal is for being mutually perpendicular to state, to reach two pieces
Test sample surface position has same light beam size, the laser parameter of equal-wattage density.
Temperature survey sample non-heated laser beam irradiating surface by welding or armouring by the way of lay thermocouple in order to
Thermometric, position of thermocouple is preferably the central point of temperature survey sample non-heated laser beam irradiating surface, wherein metal material
Material is welding, and pottery or macromolecule polymer material are armouring.
Before two pieces of test samples are heated laser beam 1 effect, by exploring laser light bundle 7 by spectroscope light splitting, a branch of cause
With reference in integrating sphere 8, another bundle is the albedo measurement sample non-power of placement at the ball wall that lens 17 cause test integrating sphere 5
Heat shock light beam irradiating surface, its exploring laser light bundle becomes the beam sizes that hundreds of micron is to 1 millimeter, concrete chi through lens contracting bundle
Very little can be according to the probe size of thermocouple 14 depending on, detection light beam active position be preferably albedo measurement sample non-heated laser
The central point of bundle irradiating surface.Identical with the laser parameter of reflectance test sample surface owing to acting on temperature survey sample, and
Two pieces of test samples have an identical state, therefore heated laser beam effect, temperature survey sample temperature measures point and reflectance
Measuring samples albedo measurement point has equal temperature history, i.e. achieves material reflectance and measures point and temperature survey
The locus of point has more accurate corresponding relation feature.By test integrating sphere 5 and the light with reference to integrating sphere 8 test port position
Electric explorer is connected with data acquisition instrument part 11 so that it is be in state to be measured.
Utilize and guide light 16 by heating laser bundle 1 by high spectroscope 2 beam splitting thoroughly, it is achieved the high-energy light beam warp again of transmission
Crossing 45 degree of 5/5 spectroscope 3, at present, existing optical technology can realize spectroscope 2 saturating to height and the knot of 45 degree of 5/5 spectroscope 3
Structure processing and functional realiey, light beam is directed to temperature survey sample 13 surface and albedo measurement sample 4 surface respectively, and translation is adjusted
Whole two pieces of test samples make the geometric center of heating laser beam center and two pieces of test sample laser irradiating surfaces overlap；Mental retardation
Amount light beam is then directed to opto-electronic conversion trigger 15 so that heating laser bundle 1 irradiation temperature survey to be measured sample 13 and reflectance
During measuring samples 4, the optical signal in the reflection light variable signal of albedo measurement sample 4 and reference integrating sphere 8 can be simultaneously
The photodetector being arranged on respective integrating sphere detection mouth is measured, and synchronizes to be gathered and record by data acquisition instrument part.
The effect of reference integrating sphere 8 is to evade the impact that reflectivity data is calculated by exploring laser light bundle output-power fluctuation.
When experiment is measured, open heated light sources output heating laser bundle, two pieces of test samples of heating laser Shu Jiare same
Time, opto-electronic conversion trigger is heated laser beam effect, quickly forms electricity and triggers signal so that be arranged at integrating sphere detection mouth
Light variable signal in the reflection light variable signal of photodetector synchro measure albedo measurement sample and reference integrating sphere,
And data acquisition instrument part synchronous recording reflective light intensity with reference to the delta data of optical signal in integrating sphere；Opto-electronic conversion simultaneously
Trigger synchronizes to trigger dynamic temperature measurement device 12, measures and records the temperature data of temperature survey sample, obtain temperature and become in time
Data T(t changed).
Utilize and measure, with reference to integrating sphere 8 and test integrating sphere 5, the optical signal data arrived, survey based on Bi-integrated sphere reflectance
Amount, computational methods, can obtain time dependent data R(t of material reflectance in laser action process).
Utilize the time as bridge, i.e. can get data R(T that reflectance varies with temperature), it is achieved laser irradiation process
In, the material reflectance kinetic measurement varied with temperature.
Above-described detailed description of the invention, is entered the purpose of this utility model, technical scheme and beneficial effect
One step describes in detail, be it should be understood that and the foregoing is only detailed description of the invention of the present utility model, is not used to limit
Fixed protection domain of the present utility model, all within spirit of the present utility model and principle, any amendment, the equivalent made are replaced
Change, improvement etc., within should be included in protection domain of the present utility model.
Claims (9)
1. the material reflectance dynamic measurement system that a kind varies with temperature, it is characterised in that include measuring samples, spectroscope,
Reflective light intensity change test system and temperature data test system, described measuring samples is surveyed with corresponding reflective light intensity change respectively
Test system or temperature data test system connect, and arrange between reflective light intensity change test system and temperature data test system
Have for synchronizing triggering reflective light intensity test system and the opto-electronic conversion trigger (15) of temperature data test system, and photoelectricity turns
Changing trigger (15) and connect reflective light intensity change test system and temperature data test system respectively, spectroscope is arranged on measurement sample
Between product or in reflective light intensity change test system or between measuring samples and opto-electronic conversion trigger (15).
A kind of material reflectance dynamic measurement system varied with temperature the most according to claim 1, it is characterised in that institute
State measuring samples and include albedo measurement sample (4) and temperature survey sample (13), and albedo measurement sample (4) and reflection light
Strong change test system connects, and temperature survey sample (13) is connected with temperature data test system.
A kind of material reflectance dynamic measurement system varied with temperature the most according to claim 2, it is characterised in that institute
State reflective light intensity change test system to be mainly made up of exploring laser light bundle (7), integrating sphere and data acquiring and recording device (11), long-pending
Bulb separation is divided into test integrating sphere (5) and connects with reference to integrating sphere (8), test integrating sphere (5) and albedo measurement sample (4), surveys
Examination integrating sphere (5) connects photodetector one (10), and connecting with reference to integrating sphere (8) has photodetector two (9), photodetection
Device one (10) and photodetector two (9) are all connected with data acquisition instrument part (11), and opto-electronic conversion trigger (15) is respectively
Connect data acquisition instrument part (11) and test system with temperature data, be arranged on the light splitting in reflective light intensity change test system
Mirror is arranged on the path of exploring laser light bundle (7), and is provided with lens between this spectroscope and test integrating sphere (5)
(17), lens (17) are arranged on the path of exploring laser light bundle (7).
A kind of material reflectance dynamic measurement system varied with temperature the most according to claim 2, it is characterised in that institute
State temperature data test system and include thermocouple (14) and dynamic temperature measurement device (12), and thermocouple (14) and dynamic temperature measurement device (12)
Being connected with each other, thermocouple (14) is fixed with temperature survey sample (13), and opto-electronic conversion trigger (15) connects reflective light intensity respectively
Change test system and dynamic temperature measurement device (12).
A kind of material reflectance dynamic measurement system varied with temperature the most according to claim 3, it is characterised in that institute
Stating spectroscope and include high spectroscope (2), 45 degree of 5/5 spectroscope (3) and spectroscope three (6) thoroughly, wherein spectroscope three (6) is arranged on
On the path of exploring laser light bundle (7).
A kind of material reflectance dynamic measurement system varied with temperature the most according to claim 5, it is characterised in that also
It is arranged at heating laser bundle (1) including heating laser bundle (1), the saturating spectroscope of described height (2) and 45 degree of 5/5 spectroscope (3)
On path, 45 degree of 5/5 spectroscope (3) is arranged on high thoroughly between spectroscope (2) and albedo measurement sample (4).
A kind of material reflectance dynamic measurement system varied with temperature the most according to claim 5, it is characterised in that institute
State albedo measurement sample (4) and temperature survey sample (13) and have equal light path away from 45 degree of 5/5 spectroscope (3).
A kind of material reflectance dynamic measurement system varied with temperature the most according to claim 6, it is characterised in that institute
Stating albedo measurement sample (4) and temperature survey sample (13) normal to a surface is plumbness, heating laser bundle (1) is all with anti-
Penetrate rate measuring samples (4) vertical with temperature survey sample (13) surface.
A kind of material reflectance dynamic measurement system varied with temperature the most according to claim 6, it is characterised in that institute
State central point and the albedo measurement sample (4) of the exposure beam of heating laser bundle (1) and temperature survey sample (13) surface
Central point overlaps.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928906A (en) * | 2016-06-20 | 2016-09-07 | 中国工程物理研究院流体物理研究所 | Dynamic measuring system for material reflectivity changing with temperature and measuring method |
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2016
- 2016-06-20 CN CN201620604998.0U patent/CN205679527U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928906A (en) * | 2016-06-20 | 2016-09-07 | 中国工程物理研究院流体物理研究所 | Dynamic measuring system for material reflectivity changing with temperature and measuring method |
| CN105928906B (en) * | 2016-06-20 | 2018-09-18 | 中国工程物理研究院流体物理研究所 | A kind of material reflectance dynamic measurement system varied with temperature and measurement method |
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