CN101603921B - Detection system for refractive index dispersion properties and detection method thereof - Google Patents
Detection system for refractive index dispersion properties and detection method thereof Download PDFInfo
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- CN101603921B CN101603921B CN2009101087069A CN200910108706A CN101603921B CN 101603921 B CN101603921 B CN 101603921B CN 2009101087069 A CN2009101087069 A CN 2009101087069A CN 200910108706 A CN200910108706 A CN 200910108706A CN 101603921 B CN101603921 B CN 101603921B
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Abstract
The invention discloses a detection system for refractive index refractive dispersion properties and a detection method thereof. The detection system for the refractive index dispersion properties comprises a transparent carrier (100) used for holding an object to be detected (110) and matching fluid (120), a temperature adjusting device (190) used for changing and acquiring the temperature of the transparent carrier (100), a broadband light source (200) used for emitting broadband light to the transparent carrier (100), an imaging device (300) used for forming a wavelength matching image of the transparent carrier (100) which at least contains two-dimensional information by the broadband light, and a computation processing device (400) used for converting the wavelength matching image of the transparent carrier (100) at least containing the two-dimensional information into a corresponding electric signal, and analyzing the electric signal by combining the temperature acquired by the temperature adjusting device (190) to obtain the refractive index refractive dispersion properties of the object to be detected (110).
Description
Technical field
The present invention relates to a kind of detection system and detection method thereof of refractive index dispersion properties.
Background technology
Dispersion characteristics are transparent materials, glass for example, an important indicator, it is with the composition of glass and make relevant.Therefore, to the glass of different manufacturers, prescription, raw material and production batch, can differentiate by dispersion characteristics.In addition, the dispersion characteristics of glass refraction are measured in fields such as industrial materials detection, the evaluations of criminal investigation material evidence has important use to be worth.
The traditional measurement method of glass refraction dispersion characteristics is on the basis of glass refraction measuring method, uses different-waveband monochromation illumination sample respectively, obtains the refractive index under the different wave length, obtains the spectral characteristic of glass sample then.The classical way of precision measurement refractive index of transparent materials has Abbe method, V prism method, minimum deviation horn cupping and interferometric method, and market can provide the surveying instrument based on these methods.But these four kinds of methods all require material is made the sample of moulding, and relevant inspection surface there is ganoid requirement, and the glass sample shape that we run in actual life is arbitrarily, and machine-shaping and surface treatment difficulty are very big, so these methods can not be used for this kind situation.Simultaneously, because these spectral measurement processes are to repeat the refractometry process when different monochromation illumination, so operating process is loaded down with trivial details, also uneconomical on the time.
The refractive index match method is the method for another high-acruracy survey glass refraction.The refractive index that the refractive index match method is based on matching fluid and glass all changes with temperature linearity, and the former variant rate is far longer than the latter; Glass sample is immersed in the matching fluid, when the refractive index of matching fluid and glass sample is identical, on the optics visual field, will can't see both borders; Can obtain the refractive index of glass sample to be measured according to the refractive index of matching fluid.Though having the people that the dispersion characteristics of glass refraction were discussed, just the effect of dispersion of glass being used as is a kind of source of error; Current refractive index match method is only measured the glass refraction under specific wavelength.
Summary of the invention
Technical matters to be solved by this invention provides and need not repeatedly to repeat to be provided with object under test, and more simple and easy to do system and method can be measured the refractive index dispersion properties parameter of object under test comparatively quickly and accurately.
The objective of the invention is to be achieved through the following technical solutions:
A kind of detection system of refractive index dispersion properties comprises:
Transparent carrier is used for splendid attire object under test and matching fluid;
Temperature control equipment is used to change and obtain the temperature of described transparent carrier;
Wideband light source is used to send the broadband light of the described transparent carrier of directive;
Imaging device is used to utilize the Wavelength matched image that at least comprise two-dimensional signal of described broadband light formation about described transparent carrier;
Calculation processing apparatus, the Wavelength matched image transitions that comprises two-dimensional signal at least that is used for described transparent carrier is corresponding electric signal, and, this electric signal is carried out analyzing and processing in conjunction with the temperature that described temperature control equipment obtains, obtain the refractive index dispersion properties parameter of described object under test.
Wherein, described matching fluid is as long as satisfy: its refractive index vary with temperature characteristic known, vary with temperature characteristic with the refractive index of object under test and have difference, and physicochemical property are stable to get final product, and is not characterized as linearity and do not need its refractive index in given temperature range to vary with temperature.Object under test can be any transparent or translucent object.
In technique scheme, with object under test, for example glass is dipped in the matching fluid in transparent carrier, and whole as the object that detects with this mixture.Wherein, the refractive index of matching fluid and glass all changes with temperature linearity, and the thermal refractive index coefficient of matching fluid is far longer than glass.And, when the refractive index of matching fluid and glass is identical, on the optics visual field, will can't see both edges along with the change of temperature, at this moment can obtain the refractive index of glass by the refractive index of matching fluid.And carry the transparent carrier of object under test and matching fluid with wideband light source illumination, and allow and form the Wavelength matched image that comprises two-dimensional signal at least through imaging device through the light of this transparent carrier, wherein, in two dimensional image, wherein, one dimension is an optical wavelength, has reflected the wavelength that described broadband light comprised; Another dimension is the position on described matching fluid and object under test border each other.Make like this spectral information and reaction refractive index match degree image synchronization by described calculation processing apparatus record.
Along with variation of temperature, described calculation processing apparatus is noted a series of " wavelength-matching images ", utilize the refractive index match method to obtain described object under test refractive index under the different wave length then, just the refractive index of described object under test realizes chromatic dispersion measurement with the curve of wavelength variations.Further, as a simple example, the Cauchy Formula of the chromatic dispersion of described object under test is:
n(λ)＝A+B/λ
2+C/λ
4； (1)
In (1) formula, n is a refractive index, and λ is a wavelength, and A, B and C are dispersion parameters.Can be with obtaining the curve of described object under test refractive index with wavelength variations, the match Cauchy Formula obtains dispersion parameters A, B and C; Be easy meter, relevant later on introduction is an example to obtain dispersion parameters A, B and C.
Compare with traditional spectral measurement method, the advantage that the amount of samples of not only having inherited the refractive index match method is few, do not require sample shape, and also operating process is few, can not increase the time burden.
Technique scheme removes to measure object under test based on the refractive index match method, refractive index dispersion properties as glass, with other maximum characteristics of the phase region of dispersion characteristics measurement in the past be exactly: under multi-wavelength, carry out refractometry synchronously, promptly measure the dispersion characteristics that just can obtain sample through the unirefringence rate.In addition, the refractive index match method need not be glass processing the sample of moulding, and it only need seldom measure sample, and sample shape is not required.So utilize this glass refraction dispersion characteristics measurement to have special meaning, particularly the new tool of identifying as a kind of court exhibits based on the refractive index match method.This is because the handled object under test of the technical program, as glass sample all is arbitrary shape and size usually, and require measuring process quick, simple to operate, can effectively strengthen the technical force of criminal justice check, particularly at will be with glass, particularly fragment or residue have important practical significance as the case of material evidence, also open up new approach for new science and technology is applied to the criminal technique field effectively, in time.Like this, also will expand of the application of glass refraction spectral measurement at the aspects such as feature detection in the quality testing of glass related industries, glass applications field.
Owing to adopted wideband light source, going up at " Wavelength matched image " so is continuous spectrum.Consider the resolution characteristic of spectrum, both can analyze several specific wavelengths, also can analyze at all wavelength.Because refractive index and its refractive index are with the linear relationship of temperature under the known matching fluid specified temp, promptly thermal refractive index coefficient can obtain the refractive index of object under test under different wave length.Cauchy dispersion formula with mathematical method match object under test obtains parameter A, B and C etc. then.Comparatively speaking, more desirable method is the certain wavelengths that wideband light source comprises of getting as much as possible, to improve fitting precision, makes the result not be vulnerable to the influence of refractometry error under certain wavelength.
Furthermore, described transparent carrier comprises: last slide that is oppositely arranged and following slide; Described going up between slide and the following slide is filled with described matching fluid, and described object under test is dipped in described matching fluid.
Correspondingly, described imaging device comprises:
The optical frames group is used for described transparent carrier is carried out optical imagery;
Slit is arranged at the conjugate imaging face place of described transparent carrier with respect to described optical frames group;
The broadband light resolving cell is used to decompose the spectrum of the broadband light that sees through described slit, and projection is space distribution.
Adopt abovementioned technology, wideband light source illumination carries the transparent carrier of object under test and matching fluid, and allows light through this transparent carrier through behind the described slit, is decomposed by described broadband light resolving cell to obtain spectral information, form two dimensional image, be a kind of Wavelength matched image.On the temperature spot of each measurement, gather piece image; By changing temperature,, can obtain a series of images such as heating up or cooling: " Wavelength matched image " reflection be matching degree in different wave length lower-glass sample and matching fluid.Wherein, the accuracy of temperature spot, this depends on described thermostatic temperature control precision, and the precision of thermometric.
Furthermore, described broadband light resolving cell comprises: be used to decompose the spectrum of broadband light, and its projection is the grating of space distribution.
Furthermore, described optical frames group comprises: first lens, second lens and the catoptron that set gradually on described transparent carrier optical imagery light path.
Furthermore, described calculation processing apparatus comprises: the charge coupled device that is used for light signal is converted to corresponding electric signal, and, be used for signal according to the input of described charge coupled device and temperature control equipment, carry out data processing and obtain the data processing unit of refractive index dispersion properties parameter.
Consider the influence of experiment measuring sum of errors environment to measuring, the image of survey record at first will utilize image processing method to remove noise.Investigate the matching degree of glass sample and matching fluid,, then search for and determine to mate temperature if the edge disappears on optical imagery during coupling.Owing to adopted wideband light source, go up at " wavelength-matched image " so and be continuous spectrum, consider the resolution characteristic of grating, can analyze several specific wavelengths, also can be at all wavelength, because refractive index and its refractive index are with the linear relationship of temperature under the known matching fluid specified temp, promptly thermal refractive index coefficient obtains the refractive index of glass sample under different wave length; Cauchy dispersion formula with mathematical method match glass sample obtains parameter A, B and C etc. then.Reasonable method is to get several wavelength more, can improve fitting precision, makes the result not be vulnerable to the influence of refractometry error under certain wavelength.
Furthermore, described temperature control equipment comprises: be used for heating unit that described transparent carrier is heated, and the control module of regulating described heating unit heating.
Adopt abovementioned technology, adjusting temperature that can be easily can certainly realize the adjusting of temperature with temperature reduction way, but this mode with heating compare, it is embodied as higher, and governing speed is also slower.
Furthermore, the detection system of described refractive index dispersion properties also comprises: be arranged between described wideband light source and the transparent carrier, be used to converge the beam condensing unit of broadband light.
Adopt abovementioned technology, can further improve the whole detection efficient of system.
The present invention also provides a kind of detection method of refractive index dispersion properties of the detection system that adopts described refractive index dispersion properties, comprises the steps:
Preparation process: described object under test immersion is contained in the matching fluid of described transparent carrier;
Image-forming step: imaging device utilizes the Wavelength matched image that at least comprise two-dimensional signal of described broadband light formation about described transparent carrier;
The temperature control step: described temperature control equipment obtains and changes the temperature of described transparent carrier;
Treatment step: described calculation processing apparatus carries out Treatment Analysis according to Wavelength matched image that comprises two-dimensional signal at least that is obtained and corresponding temperature under different temperatures, draw the refractive index dispersion properties parameter that is contained in described object under test in the described transparent carrier.
Adopt technique scheme, in treatment step, the technician is according to its job requirement, finish corresponding work, for example, the writing of the design of Control Software, man-machine interface, and image pre-service and coupling temperature searching algorithm, mathematics fitting algorithm or the like is integrated.
Wherein, we can think, the temperature of described transparent carrier equates with the temperature of described object under test and matching fluid, and perhaps, the difference between them is negligible.
In addition, influence the chromatic dispersion measurement factors of accuracy and mainly contain two.First factor is, obtains in the process of parameter A, B and C etc. at mathematics match Cauchy Formula, and measuring error can be delivered to the error of parameter A, B and C.Can this be overcome by the method for error analysis, for example,, the error of chromatic dispersion parameter A, B and C is proofreaied and correct with reference to traditional error calibration method.
Second factor is the dispersion characteristics of matching fluid, the particularly variation of thermal refractive index coefficient under different wave length.Solution comprises, the thermal refractive index coefficient of matching fluid is demarcated.For example, can demarcate the thermal refractive index coefficient spectral characteristic of matching fluid with one group of glass standard component.Concrete way is: at first, select the standard component of glass, their refractive index dispersion properties is known, and promptly their refractive indexes under different wave length are known; Then, measure the dispersion characteristics of these normal glasses with the detection method of above-mentioned refractive index dispersion properties of the present invention.Owing to refractive index match, can obtain the dispersion characteristics of matching fluid, utilize the linear relationship of the refractive index of matching fluid with temperature, can obtain the matching fluid thermal refractive index coefficient under different wave length.Wherein, the ratio of refringence and temperature difference is exactly the thermal refractive index coefficient of matching fluid.This process is exactly the thermal refractive index coefficient spectral characteristic of demarcating matching fluid.After demarcation was finished, the spectral characteristic of matching fluid thermal refractive index coefficient was stored among the system.In glass refraction chromatic dispersion measurement process after this, the matching fluid thermal refractive index coefficient under the corresponding wavelength can be improved the precision of glass refraction chromatic dispersion measurement by system call.
Furthermore, described transparent carrier comprises: last slide that is oppositely arranged and following slide; Described going up between slide and the following slide is filled with described matching fluid, and described object under test is dipped in described matching fluid;
Described imaging device comprises:
The optical frames group is used for described transparent carrier is carried out optical imagery;
Slit is arranged at the conjugate imaging face place of described transparent carrier with respect to described optical frames group;
The broadband light resolving cell is used to decompose the spectrum of the broadband light that sees through described slit, and projection is space distribution;
Described image-forming step comprises:
The marginal portion that described object under test between described upward slide of described slit aligning and the following slide and described matching fluid are had a common boundary.
Through experiment contrast, the image-forming step that adopts said method to carry out, the effect optimum of the two-dimensional wavelength matching image that its system obtained.
Compared with prior art the invention has the advantages that, need not repeatedly to repeat to be provided with object under test, more simple and easy to do, and measure the refractive index dispersion properties parameter of object under test comparatively quickly and accurately.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of detection system of refractive index dispersion properties of the present invention;
Fig. 2 is the structural representation of the another kind of embodiment of detection system of refractive index dispersion properties of the present invention;
Fig. 3 is that the Wavelength matched image of two dimension among the another kind of embodiment of the detection system of refractive index dispersion properties of the present invention forms synoptic diagram;
The course of work synoptic diagram of the another kind of embodiment of the detection system of Fig. 4 refractive index dispersion properties of the present invention;
Fig. 5 is the process flow diagram of a kind of embodiment of detection method of the detection system of refractive index dispersion properties of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing and preferred embodiment.
As shown in Figure 1, a kind of detection system of refractive index dispersion properties comprises: transparent carrier 100, temperature control equipment 190, wideband light source 200, imaging device 300, and, calculation processing apparatus 400.
Wherein, transparent carrier 100 is used for splendid attire object under test 110 and matching fluid 120; Temperature control equipment 190 is used to change and obtain the temperature of described transparent carrier 100; Wideband light source 200 is used to send the broadband light of the described transparent carrier 100 of directive; Imaging device 300 is used to utilize the Wavelength matched image that at least comprise two-dimensional signal of described broadband light formation about described transparent carrier 100; The Wavelength matched image transitions that comprises two dimension at least that calculation processing apparatus 400 is used for described transparent carrier 100 is corresponding electric signal, and the temperature of obtaining in conjunction with described temperature control equipment 190, this electric signal is carried out analyzing and processing, obtain the refractive index dispersion properties parameter of described object under test 110.
As shown in Figure 2, compare Fig. 1, be the detection system of refractive index dispersion properties embodiment more specifically.In conjunction with reference to Fig. 1, wherein, described imaging device 300 comprises: be used for to described transparent carrier 100 carry out optical imagery the optical frames group, be arranged at described transparent carrier 100 with respect to the slit 320 at the conjugate imaging face place of described optical frames group and, adopted grating 331, be used to decompose the spectrum of the broadband light that sees through described slit 320, and projection is the broadband light resolving cell of space distribution.Described optical frames group comprises: first lens 311, second lens 312 and the catoptron 313 that set gradually on described transparent carrier 100 optical imagery light paths.
Wherein, described transparent carrier 100 comprises: the last slide 101 and the following slide 102 that are oppositely arranged; Described going up between slide 101 and the following slide 102 is filled with described matching fluid 120, and described object under test 110 is dipped in described matching fluid 120.
Wherein, described calculation processing apparatus 400 comprises: the charge coupled device 410 that is used for light signal is converted to corresponding electric signal, and, be used for signal, carry out data processing and obtain the data processing unit 420 of refractive index dispersion properties parameter according to 190 inputs of described charge coupled device 410 and temperature control equipment.
Wherein, described temperature control equipment 190 comprises: be used for heating unit that described transparent carrier 100 is heated, and the control module of regulating described heating unit heating.
As shown in Figure 3, for principle of work embodiment illustrated in fig. 2 is described further.In order to obtain to comprise the Wavelength matched image of two-dimensional signal, need following two conditions: first condition is to be arranged at the slit 320 of described transparent carrier 100 with respect to the conjugate imaging face place of described optical frames group.The effect of described slit 320 is to get a sample image in the long and narrow zone, comprises the marginal portion between one or several object under test 110 and the matching fluid 120.Described slit 320 also can be thought a line, and other unwanted light are all shielded.Second condition is grating 331.Described grating 331 decomposes the spectrum of broadband light, and projection is space distribution.The effect of described grating 331 is described slit 320 to be seen through the light that comes carry out spectral resolution, projection is space distribution, obtains forming " the Wavelength matched image " of two dimension, wherein, one dimension is a wavelength, and another dimension is the position on border between object under test 110 and the matching fluid 120.
In testing process, at the Wavelength matched image of the corresponding two dimension of each temperature spot collection.Described temperature control equipment 190 such as heating up or cooling, can obtain the Wavelength matched image of a series of two dimensions by changing temperature.Described Wavelength matched image reflection be matching degree in different wave length lower-glass sample and matching fluid.
As shown in Figure 4, wherein each module has been represented the hardware components of carrying out corresponding function among the embodiment as shown in Figure 2, and wherein on behalf of control signal, dotted line flow, and the solid line represent message flow.
As shown in Figure 5, adopt the detection method of refractive index dispersion properties of the detection system of described refractive index dispersion properties to comprise the steps:
1, preparation process comprised for two steps.The first step is: object under test 110 is ground into Powdered, its powder size is in the 10-100 micron dimension, and these pulverous objects under test 110 are called as sample.Second step was: the described sample that takes a morsel is put on the following slide 102 (microslide), and drips upward matching fluid 120, allows described sample evenly distribute in the drop centered zone.Then, cover slide 101 (cover glass), guaranteeing does not have bubble in the potpourri of described sample and matching fluid 120.A kind of like this combination can be called sample strip.
2, sample strip is placed on the relevant detection position, temperature control equipment 190 can change its temperature herein.In order to raise the efficiency, corrective system will guarantee that temperature regulated zone is in the imaging scope of imaging device 300 in advance; Adjust imaging device 300 simultaneously, make imaging device 300 can observe sample and matching fluid border in the described sample strip.Also display image in real time of system's this moment is so that the user can feel the adjustment effect of imaging device 300 intuitively.
3, select specific observation district.The user need adjust described sample strip, makes slit pass through the marginal portion of one or several samples and matching fluid 120.
4, the two kinds of different search strategies in front and back.High-precision measuring coupling temperature is the precondition of refractivity precision of the present invention.Basic ideas are, the search of rough grade on a large scale earlier, obtain roughly temperature range (than before this little " among a small circle ") in different wave length lower-glass and matching fluid refractive index match, in this temperature " among a small circle ", carry out the search of thin precision then, obtain coupling temperature in different wave length lower-glass and matching fluid refractive index.
5, after broadband light process grating 331 decomposition through slit 320, on charge coupled device 410, obtain Wavelength matched image.Its one dimension is the marginal position of object under test 100 and matching fluid 120, and another dimension is corresponding wavelength.
6, assess a series of " Wavelength matched images ", obtain under different wave length, mating index with the variation of temperature curve, obtain mating temperature then.As a kind of concrete embodiment, the acquisition of coupling index can be: handle obtaining Wavelength matched image on the charge coupled device 410, extract characteristics of image, weigh the matching degree of sample and matching fluid as evaluation number.Wherein, obtain the coupling method of temperature, relevant with the selection of coupling index.
7, obtain the refractive index of object under test 110 from the coupling temperature.Before measuring, system is calibrated, just measure according to flow process, thereby obtain the temperature refraction rate coefficient of matching fluid under the different wave length by the known standard model of refractive index dispersion characteristics.After in the measurement at the object under test 110 of unknown refractive index, obtain after the coupling temperature under the different wave length, by the temperature refraction rate coefficient of matching fluid under the different wave length, converse object under test 110 refractive indexes under the different wave length.
It is pointed out that the imaging device 300 among the present invention can select to adopt microscope, comprise, simple microscope and phase microscope, it can be a transmission-type, also can be reflective.The search strategy of detection method of the present invention, except mode with two kinds of search strategies in the above-mentioned embodiment and usefulness, also can obtain mating index variation trend with searching among a small circle, vary with temperature feature in conjunction with the matching fluid refractive index then, calculate the approximate match temperature, again in conjunction with thin precision temperature search among a small circle.The 4th, the quality of the Wavelength matched image of assessment can also can be used other features of image with using boundary characteristic as in the above-mentioned embodiment.And mating the selected of index, certain mathematical feature that can use present image also can be with successive image being selected to obtain to mate index etc. as template based on the initial temperature status image as the coupling index.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (8)
1. the detection system of a refractive index dispersion properties is characterized in that, comprising:
Transparent carrier (100) is used for splendid attire object under test (110) and matching fluid (120), and object under test (110) is dipped in described matching fluid (120);
Temperature control equipment (190) is used for changing and obtaining the temperature of described transparent carrier (100);
Wideband light source (200) is used to send the broadband light of the described transparent carrier of directive (100);
Imaging device (300) is used to utilize the Wavelength matched image that at least comprise two-dimensional signal of described broadband light formation about described transparent carrier (100), and in the described two-dimensional signal, one-dimension information has reflected the wavelength that described broadband light comprised; Another dimension information is the position on described matching fluid and object under test border each other;
Calculation processing apparatus (400), the Wavelength matched image transitions that comprises two-dimensional signal at least that is used for described transparent carrier (100) is corresponding electric signal, and the temperature of obtaining in conjunction with described temperature control equipment (190), this electric signal is carried out analyzing and processing, obtain the refractive index dispersion properties parameter of described object under test (110);
Wherein, described imaging device (300) comprising:
The optical frames group is used for described transparent carrier (100) is carried out optical imagery;
Slit (320) is arranged at the conjugate imaging face place of described transparent carrier (100) with respect to described optical frames group;
The broadband light resolving cell is used for decomposing the spectrum of the broadband light that sees through described slit (320), and projection is space distribution.
2. the detection system of refractive index dispersion properties as claimed in claim 1, described transparent carrier (100) comprising: last slide (101) that is oppositely arranged and following slide (102); Described going up between slide (101) and the following slide (102) is filled with described matching fluid (120).
3. the detection system of refractive index dispersion properties as claimed in claim 1 is characterized in that, described broadband light resolving cell comprises: grating (331).
4. the detection system of refractive index dispersion properties as claimed in claim 1, it is characterized in that described optical frames group comprises: first lens (311) that on described transparent carrier (100) optical imagery light path, set gradually, second lens (312) and catoptron (313).
5. the detection system of refractive index dispersion properties as claimed in claim 1 or 2, it is characterized in that, described calculation processing apparatus (400) comprising: the charge coupled device (410) that is used for light signal is converted to corresponding electric signal, and, be used for signal, carry out data processing and obtain the data processing unit (420) of refractive index dispersion properties parameter according to the input of described charge coupled device (410) and temperature control equipment (190).
6. the detection system of refractive index dispersion properties as claimed in claim 1 or 2, it is characterized in that, described temperature control equipment (190) comprising: be used for heating unit that described transparent carrier (100) is heated, and the control module of regulating described heating unit heating.
7. the detection system of refractive index dispersion properties as claimed in claim 1 or 2 is characterized in that, also comprises: be arranged between described wideband light source (200) and the transparent carrier (100), be used to converge the beam condensing unit (900) of broadband light.
8. the detection method of the refractive index dispersion properties of the detection system of an employing refractive index dispersion properties as claimed in claim 1 is characterized in that, comprises the steps:
Preparation process: described object under test (110) immersion is contained in the matching fluid (120) of described transparent carrier (100);
Image-forming step: imaging device utilizes the Wavelength matched image that at least comprise two-dimensional signal of described broadband light formation about described transparent carrier (100), and in the described two-dimensional signal, one-dimension information has reflected the wavelength that described broadband light comprised; Another dimension information is the position on described matching fluid and object under test border each other;
The temperature control step: described temperature control equipment obtains and changes the temperature of described transparent carrier (100);
Treatment step: described calculation processing apparatus (400) carries out Treatment Analysis to the Wavelength matched image that comprises two-dimensional signal at least and the corresponding temperature that are obtained under different temperatures, draw the refractive index dispersion properties parameter that is contained in described object under test (110) in the described transparent carrier (100);
Wherein, described transparent carrier (100) comprising: last slide (101) that is oppositely arranged and following slide (102); Described going up between slide (101) and the following slide (102) is filled with described matching fluid (120); Described image-forming step comprises: the described object under test (110) between described upward slide (101) of described slit (320) aligning and the following slide (102) and the marginal portion of described matching fluid (120) boundary.
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| CN105572050B (en) * | 2015-12-21 | 2018-06-26 | 中国科学院长春光学精密机械与物理研究所 | The detection method of spherical lens material homogeneity |
| CN107290353A (en) * | 2016-03-30 | 2017-10-24 | 中芯国际集成电路制造(上海)有限公司 | The bubble detection device and detection method of photoresistance pipeline |
| CN107505288A (en) * | 2016-10-26 | 2017-12-22 | 成都光明光电股份有限公司 | Visible ray to middle infrarefraction rate temperature coefficient method of testing |
| CN112782120B (en) * | 2021-01-28 | 2021-11-26 | 清华大学 | Method and device for measuring refractive index of transparent solid with convex cambered surface |
| CN114739627B (en) * | 2022-03-16 | 2023-07-21 | 中国农业大学 | Optical matching calibration method and device for internal flow field of complex structure |
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