CN109100305B - Digital substance information acquisition device and method for liquid dispersion system - Google Patents
Digital substance information acquisition device and method for liquid dispersion system Download PDFInfo
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- CN109100305B CN109100305B CN201810770093.4A CN201810770093A CN109100305B CN 109100305 B CN109100305 B CN 109100305B CN 201810770093 A CN201810770093 A CN 201810770093A CN 109100305 B CN109100305 B CN 109100305B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N2021/1765—Method using an image detector and processing of image signal
- G01N2021/177—Detector of the video camera type
- G01N2021/1772—Array detector
Abstract
The invention provides a device and a method for acquiring digitalized substance information of a liquid dispersion system, which comprises a combined surface light source, a sample pool and a camera device which are sequentially arranged; the sample cell is used for containing a liquid dispersion system to be tested; the surface combination light source is used for emitting light to irradiate and penetrate through the liquid dispersion system in the sample cell; the camera device is used for acquiring the residual light after passing through the liquid dispersion system to obtain a digital image and digitizing the material information; the focusing surface of the imaging device is the closest light emitting surface. Any complex material information of the solution sample can be digitally presented, and the information can be further explained and explained through the existing artificial intelligent algorithm such as data mining or deep learning. The cost of the whole equipment can be reduced to a fraction of that of similar equipment; the device has wide application range and wide measurement range. The consumption in the detection process is almost zero, the detection at any time can be realized, and the operation is simple and convenient.
Description
Technical Field
The invention relates to the field of material analysis, in particular to a device and a method for acquiring digitalized material information of a liquid dispersion system.
Background
In the field of science and technology, spectral analysis, especially analytical determination of absorption spectral characteristics of a substance, and other associated properties deduced from the absorption spectral characteristics, is an important means and way to obtain information about the substance. The study on the light emitting and absorbing conditions of different substances has important theoretical and practical significance and has become a special subject-spectroscopy. The spectrum is called an optical spectrum, and is a pattern formed by sequentially arranging colored light after being dispersed by a dispersion system (such as a grating or a prism) according to the wavelength (or frequency) of the light.
A common method for obtaining various types of spectral data is to disperse a spectrum, utilize a very narrow spectrum to act on an object under study, and collect the residual spectral energy after the action. The spectral curve is made by dividing the spectral range under study into dozens, hundreds or even thousands of small sections and finally unifying the data.
For the absorption or excitation of substances by complex light, especially complex mixed light, the data collected is arbitrarily confusing and difficult to analyze. Previous studies have not been used as an effective information carrier, nor as an effective means of data acquisition. This method of separately measuring and then analyzing the spectra is used in many conventional detection devices.
However, if we take some immobilization method, such as immobilizing all the conditions of the complex spectrum, then for a particular substance it interacts with the immobilized complex spectrum, and the result of the interaction is complex but fixed. This post-action spectrum contains in fact information about the substance itself. This information can be used as a digital carrier of the nature of the substance to be measured, so that the information obtained from this data can be mined using machine learning methods.
However, due to the defects of the analysis means and the mining method in the prior art, the digital information obtained by mixing a plurality of pieces of information by using the spectrum mixing method has no way of extracting accurate and effective knowledge information from the middle, so the spectrum analysis only stays on the analysis of a single spectrum or a fixed complex spectrum. With the rapid development of the existing artificial intelligence technology, the development of the algorithm has better breakthrough. However, in terms of algorithm training and acquisition of relevant big data, the existing methods for acquiring substance information through a spectrometer and the like in the natural science technology, particularly the methods for acquiring digital information have the characteristics of high cost and slow speed. The demand of artificial intelligence for big data cannot be met.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a device and a method for acquiring digitalized substance information of a liquid dispersion system, which have the advantages of low cost and simple operation, can realize large-area coverage of the liquid dispersion system, and can efficiently acquire a large amount of digitalized substance information.
The invention is realized by the following technical scheme:
a kind of liquid dispersion system digitalizes the information acquisition device of the matter, including combined area light source, sample cell and camera shooting device set up sequentially;
the sample cell is used for containing a liquid dispersion system to be detected;
the surface combination light source is used for emitting light rays to irradiate and penetrate through the liquid dispersion system in the sample cell;
the camera device is used for acquiring the residual light after passing through the liquid dispersion system to obtain a digital image and digitizing the material information; the focusing surface of the imaging device is the closest light emitting surface.
Preferably, the combined surface light source comprises at least 2 subunits, each subunit emits ultraviolet light and/or visible light, and the wavelength and/or intensity of light emitted by each subunit are different.
Furthermore, the combined surface light source is composed of independent light sources spliced in a two-dimensional coplanar manner, and each independent light source is a subunit.
Furthermore, the combined surface light source comprises a primary light source, an optical device for light modulation and a surface combined optical filter which are arranged in sequence; the optical device comprises a light-transmitting sheet with a frosted surface, and at least one of an optical filter, a dimmer and a filter for absorbing and intercepting corresponding wave bands in the light emitted by the primary light source.
Still further, the surface-combined optical filter is a transparent sheet-shaped component, which includes a transparent substrate, and multiple thin films disposed on the transparent substrate form light absorption areas corresponding to the combined surface light source subunits one-to-one through different thin film types and different thicknesses.
Further, the surface combination filter refers to a transparent sheet-shaped component, which comprises a transparent substrate and light absorption areas which are arranged by chemical printing or printing and correspond to the combination surface light source subunits one by one.
Preferably, the device further comprises an image processing device; the image processing device is connected with the output end of the camera device and used for storing and processing digital image data acquired by the camera device, and acquiring digital image information reflecting the spectral absorption characteristics of the liquid dispersion system to be detected as digital matter information of the liquid dispersion system.
Further, the sample cell comprises two light-passing surfaces which are arranged in parallel, and the distance between the inner sides of the light-passing surfaces and used for restraining the liquid sample is 0.5mm-100 cm; the two light passing surfaces are connected in a sealing way, and a sample inlet and a sample outlet are respectively arranged at the joint to ensure that the two light passing surfaces are communicated up and down.
Preferably, when the camera device collects ultraviolet light, the surface combination light source emits ultraviolet light; a quartz convex lens for forming parallel light rays is arranged between the surface combination light source and the sample cell, a fluorescent substance excitation imaging screen is arranged between the sample cell and the camera device, and the camera device carries out focusing shooting on the fluorescent substance excitation imaging screen; the fluorescent substance excitation imaging screen is a transparent substrate coated with ultraviolet excitation fluorescent substances on the surface.
Based on any one of the devices, the combined surface light source is used for emitting light, the characteristics of the rest light are recorded by the corresponding shooting device after the light passes through a sample to be detected, and the digital image information reflecting the spectral absorption characteristics of the sample to be detected is obtained and is used as the digital material information of the sample to be detected.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention can digitally display the material information of any complex solution sample, the external form of the display is a big data array represented by an image, the array contains a large amount of information of the original material to be detected, and the information can be further explained and explained by the existing artificial intelligent algorithm such as data mining or deep learning. The device of the invention is an extremely simple means for acquiring mass data of the substance. The cost of the whole equipment can be reduced to a fraction of that of similar equipment by combining the cooperation of the surface light source, the sample cell and the camera device; these similar devices, for example, are some spectroscopic instruments that we commonly use to study complex substances. Meanwhile, the speed of acquiring data by adopting the existing algorithm is faster than that of the conventional scanning spectrum technology. The device of the invention has wide application range, and the measuring range can have a large adjusting range. For example, for a relatively thin liquid, effective imaging intensity can be obtained by increasing the optical path length of the liquid. In terms of adaptation, it is expected to be widely applied to detection of tissue fluid of medical human body, such as urine, saliva detection and the like. It can also be applied to the detection of water liquid samples in the environment. In addition, in the aspect of the whole use cost, the consumption in the detection process is almost zero, the detection at any time can be realized, and the operation is simple and convenient.
Drawings
FIG. 1 is a schematic view of the structure of an apparatus described in embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a visible light combined surface light source in embodiment 1 of the present invention;
FIG. 3 is a schematic structural view of an apparatus according to embodiment 21 of the present invention;
FIG. 4 is a schematic view of an ultraviolet combined area light source;
FIG. 5 is a schematic view of the surface combination of 16 light-emitting units of the ultraviolet combined filter;
FIGS. 6a-6f are schematic illustrations of different printing templates in accordance with example 26 of the present invention;
FIG. 7 is a schematic view of the construction of the sample cell described in examples 18 and 33 of the present invention;
FIG. 8 is a schematic diagram of the structural principle of UV fluorescence imaging as described in example 35 of the present invention.
In the figure: 1 is a visible light combined surface light source; 2 is a sample cell; 201 is a sample inlet; 202 is the sample outlet; 3, a visible light imaging device; 4 is a processing and storage device of image data; 5 is a primary point light source; 6 is ground glass; 7 is a face combining filter; 8 is a ultraviolet light combined surface light source; 9 is an ultraviolet camera device, 10 is an ultraviolet filter; 11 is ground quartz glass; 12 is a quartz convex lens; and 13 is a fluorescent substance excitation imaging screen.
Detailed Description
The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
The invention relates to a device and a method for acquiring digitalized substance information of a liquid dispersion system.
The light emitting surface of the combined surface light source can be divided into more than or equal to n subunits, wherein n is an integer more than 1, and light rays emitted by n subunits have different characteristics in the aspects of wavelength composition, intensity and energy; the value of n here is chosen according to the amount of information and the actual performance capability on the properties of the sample; the combined surface light source includes, in terms of wavelength, some or all of the ultraviolet and visible light bands.
The light rays released by the combined surface light source have different characteristic distributions in space, which is the basis of the complexity of light ray information after the light rays are absorbed in the later period. Not only can take the values of 10, 20, 50, 100, 200; in order to obtain stronger data acquisition capability and analysis capability of later-stage related indexes, the value of n can be selected to be larger, and hundreds, thousands or even millions of levels can be conveniently realized by combining a proper light source preparation method.
In practical applications, it is desirable that the subunits on the light emitting surface have sufficient difference between them. It is possible to have a better coverage of wavelengths and intensities in the spectral region under investigation, and combinations between them. I.e. the individual light characteristics that these sub-units have, can represent the spectral region under investigation to the greatest extent. This representativeness is mainly due to the number of subunits and the variability of the individual units. Generally, when the number of subunits is small, the difference between each subunit is expected to be larger, and when the number is large, the difference between subunits is relatively small and the distribution in space is continuous.
The device implementation method of the combined surface light source is mainly implemented through two general technical routes, one is to construct small independent light sources and then to splice a plurality of light sources on the surface in two dimensions. Another technical route for realizing the method is to generate light rays with rich wavelength components by an overall light source and then realize the method by adopting a combined filtering method. Filtering as used herein refers to the operation of trapping some components of light while letting other components pass through. The combined filtering means that different filtering effects are organized on one surface, so that the actual emergent light is the combined surface light source. This technical route, by providing suitable optics, will make it possible to obtain a very rich and controllable combined area light source.
The invention adopts the latter technical scheme, and the combined surface light source comprises a primary light source, an optical device for light modulation and a surface combined optical filter. The optical device for light modulation described here has a light modulation effect mainly on the primary light source. Specific examples thereof include the following, and combinations thereof may be used. One is a light-transmitting sheet having a frosted surface to make the light uniform and soft. One is a filter with absorption and rejection for certain bands of light emitted by the primary light source. One is a dimmer sheet for dimming the intensity of light. One is a filter, such as a convex lens, for modulating parallel light rays.
In general, a surface-combining filter refers to a sheet-like member having light absorbing materials with different light absorbing characteristics distributed in different areas on its surface. The aforementioned n value is realized by the number of different areas on the surface. The preparation of the surface combination filter can be completed by using a splicing method under the condition of not using equipment; in the case of mass commercial production, the best mode is to use a series of high-precision material positioning and transferring methods such as a sample machine, a printer and the like. Prepared on a transparent sheet by means of chemical printing or printing. For specific examples, see the examples that follow.
In the invention, the shooting device obtains the shooting recorded data, and when the shooting device processes the data, the shooting recorded data of the blank sample is deducted, so that the change proportion of the light absorption value can be obviously increased, and the relevance of the obtained data and the absorption characteristic is improved.
The recording effected by the camera means results in digitized image information. Such digitized image information may be presented visually in a variety of embodiments and formats, most commonly as a color or gray image file in a variety of different image formats. The information can also be recorded in the form of a digital matrix, which is not intuitive to present, but is equally convenient and feasible for later data computer processing.
Wherein the sample to be measured of the liquid dispersion is an aqueous solution, an organic solution, or a mixed solution sample thereof. Liquid dispersions of samples to be tested are widely available in various industries. It may be in the original state or in the later stage through dissolving and dispersing. In particular, sometimes, in order to perform a wider chemical analysis, some samples are often added with other compounds which are helpful for display and analysis, such as various color developers, and the application range of the samples to be tested is remarkably increased. Especially, the kit has better applicability to samples to be detected which have wide application potential such as urine, saliva, waste water, blood products, beverages and the like.
The present invention is not limited to the printing or printing ink, and the following examples only illustrate the feasibility of at least one of phenyl ortho-hydroxybenzoate, ortho-nitroaniline, 2, 4-dihydroxybenzophenone, 2-hydroxy-4-N-octoxybenzophenone, N- (ethoxycarbonylphenyl) -N '-methyl-N' -phenylformamidine, 1,3, 5-s-triazine, 2- (2 '-hydroxy-5' -methylphenyl) benzotriazole, and 2-hydroxy-4-N-octoxybenzophenone, and those skilled in the art can find more inks with better adjustment uniformity through systematic screening, which belongs to the protection and limitation of the present invention.
The invention is further illustrated and explained below by means of a number of specific examples.
Example 1
The embodiment relates to a scheme of a visible light waveband, and takes absorption characteristic information of a visible spectrum as digital information. As shown in fig. 1, first, a visible light combined surface light source 1 is used to emit visible light; adding a sample to be detected of the liquid dispersion system into a sample cell 2 with two light-transmitting surfaces; irradiating the sample cell 2 by utilizing the light rays emitted by the visible light combined surface light source 1; and a visible light image pick-up device 3 is arranged on the other surface of the sample cell 2 for focusing and shooting, and the selected focusing surface is the light emitting surface of the visible light combined surface light source 1. The output end of the visible light camera 3 is connected with the image data processing and storing device 4. The specific unit details are as follows.
The structure of the visible combined surface light source 1 in this embodiment is shown in fig. 2, and includes a primary point light source 5, a ground glass 6, and a surface combined filter 7, which are arranged in this order; the primary point light source 5 is a 3W iodine tungsten lamp with a lamp power regulator to adjust the brightness; the frosted glass 6 is made of transparent colorless glass with a thickness of 2mm, preferably made of optical K9 glass, and the surface-combined filter 7 is a film with a surface-designed color pattern, for example, the pattern adopts CIE-1931 chromaticity diagram (International Commission Illumination). The specific production of the surface-combined filter 7 refers to a production method of a color slide film.
The sample cell 2 in this embodiment includes two light-passing surfaces made of optical glass. The distance for restraining the liquid sample inside the light-passing surface is 0.5mm-100cm, and 1cm is adopted in the preferred embodiment, namely the thickness of the liquid light path can be formed by 1cm after the liquid sample is injected.
The visible light imaging device 103 in the present embodiment is a digital camera having a macro shooting function, and in the present preferred embodiment, a sony T500 digital camera is used.
In the early stage of experiment, the sample to be tested can be selected from urine, printing and dyeing wastewater, red wine, color reaction liquid and the like.
Example 2
Referring to example 1, the primary point light source 5 was replaced with a unit consisting of six light emitting diodes of different light emitting characteristics, and 0.25W light emitting diodes of red, orange, yellow, green, blue, and violet were selected, respectively. Other things being equal, the object of the invention can be achieved as well. And can mix and emit mixed light having a specific visible light distribution.
Example 3
Referring to example 1, the primary point light source 5 is replaced with a white light emitting diode. Other things being equal, the object of the invention can be achieved as well.
Example 4
Referring to example 1, a point light source of a halogen lamp as a primary point light source 5 was combined with a white light emitting diode. Other things being equal, the object of the invention can be achieved as well. This has the advantage that the intensity of visible light in the short wavelength region can be further enhanced, so that the intensity distribution in the measurement wavelength range is more uniform.
Example 5
Referring to example 1, a colorless organic glass processed into a frosted surface is used in place of the frosted glass 6. Other things being equal, the object of the invention can be achieved as well.
Example 6
Referring to example 1, a frosted colorless and transparent plastic sheet was used in place of the frosted glass 6. Other things being equal, the object of the invention can be achieved as well.
Example 7
Referring to example 1, the pattern on the surface-combining filter 7 is formed in another pattern having a large color distribution, for example, a Mona Lisa image of DaVinci. Other things being equal, the object of the invention can be achieved as well.
Example 8
Referring to embodiment 7, the specific part of the pattern on the surface combination filter 7 is specially provided with a positioning mark, which is convenient for the final correction of the recorded pattern, and the positioning mark can use a cross mark or refer to a design method of a two-dimensional code.
Example 9
Referring to example 1, two slides of different patterns were superimposed and used as one sheet, replacing the original combination filter 7. Other things being equal, the object of the invention can be achieved as well.
Example 10
Referring to example 1, the base of the original-side combination filter 7 was replaced with a colorless transparent optical glass during the production process. Other things being equal, the object of the invention can be achieved as well.
Example 11
Referring to example 1, another ground glass was additionally provided vertically between the ground glass 6 and the surface-combining filter 7. Other things being equal, the object of the invention can be achieved as well. The effect of the light-emitting diode is that light can be better made to be uniform and soft.
Example 12
Referring to example 1, a piece of dimmer having a brand name of TXSJP-X was additionally disposed between the primary point light source 5 and the sample cell 2. Other things being equal, the object of the invention can be achieved as well. Can function to reduce the intensity of the emitted light and is useful in some design systems where lower intensity light is desired.
Example 13
Referring to example 1, the light-transmitting surface of the sample cell 2 was additionally made of transparent organic glass. Other things being equal, the object of the invention can be achieved as well.
Example 14
Referring to example 1, the distance inside the light-passing surface of the sample cell 2 for confining the liquid sample is set to 1mm, which is suitable for a sample with strong absorption.
Example 15
Referring to example 1, the distance inside the light-passing surface of the sample cell 2 for confining the liquid sample was set to 5cm additionally.
Example 16
Referring to example 1, the distance inside the light-passing surface of the sample cell 2 for confining the liquid sample was set to 100cm additionally, which is suitable for a sample that absorbs light weakly.
Example 17
Referring to example 1, the distance for confining the liquid sample inside the light-passing surface of the sample cell 2 was set to 0.5mm additionally.
Example 18
Referring to embodiment 1, as shown in fig. 7, two light-passing surfaces of the sample cell 2 are connected in a sealing manner, and a sample inlet 201 and a sample outlet 202 are respectively arranged at the connection positions to be communicated up and down, which can ensure free access of liquid at any time, which is very beneficial for some cases with the need of implementing continuous monitoring.
Example 19
Referring to the previous embodiment 18, the sample cell 2 may further be connected to a quantitative inlet/outlet device on the upper and lower inlet/outlet pipes.
Example 20
Referring to embodiment 1, the camera device 103 uses a camera connected to a computer to replace the existing digital camera. Other things being equal, the object of the invention can be achieved as well.
Example 21
The embodiment relates to a scheme of an ultraviolet band, and takes the information of the ultraviolet spectrum absorption characteristic as digital information. As shown in fig. 3, first, an ultraviolet light combined surface light source 8 is used to emit ultraviolet light; adding a sample to be detected into a sample cell 2 with two light-transmitting surfaces; illuminating the sample cell 2 with the emitted light source; and an ultraviolet camera device 9 is arranged on the other surface of the sample cell 2 for focusing and shooting, and the selected focusing surface is a light emitting surface of an ultraviolet combined surface light source 8. The shot picture data is stored. The specific details are as follows.
The structure of the uv combined surface light source 8 in this example is shown in fig. 4, which includes a primary point light source 5, an uv filter 10 and ground quartz glass 11 arranged in sequence, wherein the primary point light source 5 is a deuterium lamp manufactured by agilent, HK086993, and the uv filter 10 is manufactured by tangsheno, model number ZWB2 (which is used to block most of visible light). The ground quartz glass 11 is made of optical ultraviolet quartz glass having a thickness of 1 mm. The surface-combining filter 7 has a surface-combining structure having 16 light-emitting units as shown in fig. 5.
The surface combination filter 7 of the present example was specifically prepared as follows.
First, referring to the literature (Chenqianbao, Steerro Jun, Meixianjun. preparation, characterization and ultraviolet absorption properties of polybutyl acrylate/titanium dioxide hybrid film [ J ]. synthetic rubber industry, 2011,34(2): 120-.
Referring to the literature (luyudong, zhuina, wu zong. tannin ultraviolet absorption characteristics and its application in PVA films [ J ]. journal of chemical industry, 2009,23(6):32-34.), a PVA film material containing tannin was prepared as a b-piece.
PDMS (polydimethylsiloxane) films were prepared as c-plates, according to the literature (Tanigaki N, Yase K, Kaito A, et al. high purity oriented films of poly (dimethylsilylene) by fractionation positioning [ J ]. Polymer,1995,36(12): 2477-2480.).
The abc sheet was cut into a plurality of 3 × 3mm square pieces, and adhered to a 1mm thick quartz glass substrate in the order of fig. 5. In fig. 5, in each unit, a letter represents a kind of material, a following number represents a number of layers to be stacked, and 0 represents that such a material is not used. In the test, the light-transmitting surface of the small square piece does not use adhesive, and only a little adhesive is used on other surfaces to play a role in fixing. And for the adjacent small pieces with the same material, the small pieces can be integrally cut during cutting.
The light-transmitting surface of the sample cell 2 in this example was made of JGS-1 type optical ultraviolet quartz glass with a thickness of 1 mm. The ultraviolet imaging device 9 in this example was an ultraviolet imaging device model XC-EU50CE manufactured by Sony.
In the previous experiment, the sample to be tested can be selected from urine, waste water, wine, white spirit, aqueous solutions of various compounds and organic solutions of various compounds.
Example 22
Referring to example 21, the primary point light source 5 was replaced with a unit consisting of six ultraviolet light emitting diodes of different emission wavelength characteristics. In general, a light emitting diode has a light emission characteristic in which a narrow light emission band is provided on both sides of a central emission wavelength. Several different leds may be used to cover a portion of the wavelength band of interest. In the 6 light emitting diodes of this example, the central emission wavelength can be respectively selected from the following regions by sub-bands, 200-. Other things being equal, the object of the invention can be achieved as well. And can mix and emit mixed light having a particular composition of ultraviolet wavelength distribution.
Example 23
Referring to example 21, the primary point light source 5 was replaced with a 1W UV LED with a central emission wavelength of 320-350 nm. Other things being equal, the object of the invention can be achieved as well. This is particularly advantageous for some, delicate cases where more studies of this narrower distribution of central emission wavelengths are required.
Example 24
Referring to example 21, the primary point light source 5 was replaced with a 4W UV lamp having a central emission wavelength of about 185nm, and the same thing was true. This example would be less costly for some fine cases where more research is required at a narrower distribution of short uv wavelengths.
Example 25
Referring to example 21, instead of the ground quartz glass 11, a polypropylene sheet of an organic ultraviolet-transmitting material processed into a ground surface was used. Other things being equal, the object of the invention can be achieved as well.
Example 26
Referring to example 21, a new manufacturing method of the surface-combined filter 7 was used instead. Other things being equal, the object of the invention can be achieved as well. The new face combining filter 7 is manufactured as follows.
The most basic technical path of the method is realized by chemical printing, and the various absorbent materials are distributed on a plane in a positioning way. Chemical Printing may be referred to in the literature ([1] X.Liu, T.T. -J.Tarn, F.Huang, J.Fan, Recent advances in ingjet Printing synthesis of functional metals, Particology, 19(2015)1-13.[2] I.M.Hutchings, G.D.Martin, Inkjet technology for digital simulation, John Wiley & Sons,2012.[3] X.Yan, Y.Zheng, J.Gao, J.Lee, An Ink-jet Printing for external expression of Chemical activation with thread Variations, Analytical science, (33) 1-3 g.2014 ] W.W.S. Wan, J.S. Fa, J.S. 3, J.S. 3, J.S. Pat. No. 3, J.S. 3, J. 3, J.S. F.S. F.S.S. F.S. No. F.S. F. F.S. F.S.S.S. F.S.S. F.S. F.S.S. F.S.S.S. F.S.S.S.S.S.S.S.S.S.S.S.S.S.S.S.S.S.S.S.S.S.S.S.S.S.S.S.S.S.S.
Firstly, a printing template file as shown in fig. 6a-6f is designed, and the schematic diagram of six sets of electronic templates is provided, and the differences of the templates in the figure are described as follows.
The printing template is used for controlling the printer to print a specific solution distribution on a plane. Generally, three channels of CMY are adopted to control the printer to print several different solutions in the same plane area in a precise positioning mode, and therefore different assemblies can be formed in a positioning mode. Of course, for the case of monochrome printing, we can divide the three channels completely into three separate documents, with only one of the three channels being printed in each pass. However, this requires overprinting of the print for each channel, and precise positioning.
The set of templates of fig. 6a, with 49 partition units, can be set to 49 n values (and with four repetitions, facilitating error analysis). For less than 49 cases, some points can be selectively shielded by opaque material. This allows the desired number of combination point types, e.g., 10, 20, 30, 40, etc. The stencil may also be square in appearance, rectangular, or even circular in appearance.
FIG. 6b is a set of templates, which is a 20 × 20 template. Referring to the situation in fig. 6a, n values of 50, 100, 150, 200, 300, etc. may also be obtained.
The two sets of templates, FIG. 6c and FIG. 6d, are 300X 300 templates. FIG. 6c corresponds to a printing process that may be completed using two different solution materials; fig. 6d corresponds to a printing process that can be completed using two different solution materials.
Figure 6e may actually guide the printing of two three-channel stencils on the same piece of material. The direct feature of such printing is that four, five, or even more materials can be printed on the same sheet.
Fig. 6f is another variation of the outer structure, with a rounded, apparent structure. Is a distortion of the appearance and channel decomposition of figure 6 e.
Next, selecting compounds having different absorption characteristics for light in the ultraviolet band, such as phenyl o-hydroxybenzoate, o-nitroaniline, 2, 4-dihydroxybenzophenone, 2-hydroxy-4-N-octyloxybenzophenone, N- (ethoxycarbonylphenyl) -N '-methyl-N' -phenylformamidine, 1,3, 5-s-triazine, 2- (2 '-hydroxy-5' -methylphenyl) benzotriazole, 2-hydroxy-4-N-octyloxybenzophenone, and the like; other compounds having a certain absorption band in the ultraviolet band, and some commercially available ultraviolet absorbers may be selected as long as they can be stably present on the glass substrate. Each 0.1g of the ink was dissolved in 10ml of an organic solvent and used as a printing ink for a printer. Then using a chemical printer such as the Shimadzu CHIP-1000 printer, Japan, or some commercial piezoelectric ink jet printers, which require the addition of some printing aids to the formulated ink solution to accommodate the printing process, the ink solution is overprinted on a piece of optical quartz glass substrate, positioned according to the designed stencil guide. After printing, pure or mixed solvents can be sprayed on the surface to be printed in an ultra-fine mode, so that remixing of various solutes at fixed positions is promoted. And finally drying for later use. In addition, a clean optical quartz glass sheet can be used and packaged on the printing surface to increase the environmental corrosion resistance.
Alternatively, the selected compounds can be quantitatively attached to the optical quartz glass substrate by screen printing. Or some low-cost organic light-transmitting film bases are adopted according to the use wave band.
And (3) covering the whole area except the pattern area which is not designed on the base by adopting a shading material. So as to increase the shooting target and the anti-interference capability.
Example 27
Referring to the previous embodiment 26, the pattern on the surface-combining filter 7 uses another pattern having a greater color distribution as a template, for example, a Mona Lisa image of DaVinci.
Example 28
Referring to the previous embodiment 27, the specific part of the pattern on the surface combination filter 7 is specially provided with the positioning mark, so that the recorded pattern can be corrected finally, and the positioning mark can use a cross mark or refer to a design method of a two-dimensional code.
Example 29
Referring to example 21, two surface combination filters of different patterns were stacked and used as one sheet in place of the original surface combination filter 7. Other things being equal, the object of the invention can be achieved as well.
Example 30
Referring to example 21, the substrate of the original surface combination filter 7 was replaced with the organic uv-transparent material during the manufacturing process, and the same applies to the other cases, so that the object of the present invention can be achieved.
Example 31
Referring to example 21, another ground glass was additionally provided vertically between the ground quartz glass 11 and the surface-combining filter 7. Other things being equal, the object of the invention can be achieved as well. The effect of the light-emitting diode is that light can be better made to be uniform and soft.
Example 32
Referring to example 21, the light-transmitting surface of the sample cell 2 was made of an organic ultraviolet-transmitting material, and the object of the present invention was also achieved.
Example 33
Referring to example 21, the distance inside the light-passing surface of the sample cell 2 for confining the liquid sample was set to one of 1mm, 5mm, 10cm, 20cm, 50cm, 70cm and 100 cm.
Example 34
Referring to the embodiment 21, the sample cell 2 is changed to have a structure as shown in fig. 7, which is through from top to bottom, and can ensure the free access of liquid at any time, which is very beneficial for some cases with the need of continuous monitoring.
Example 35
The sample cell according to the previous embodiment 34 may further have liquid inlet and outlet pipes arranged at the upper and lower parts, and connected to a quantitative liquid inlet device.
Example 36
Referring to embodiment 21, the ultraviolet imaging apparatus 9 is additionally provided with a structure as follows, and the object of the present invention can be achieved similarly. The general design principle of the structure is that ultraviolet rays are used for exciting fluorescent substances which are regularly distributed on a plane so as to release visible light, and the visible light camera device is used for shooting and recording. The specific implementation method is as follows.
As shown in fig. 8, a quartz convex lens 12 is added between the surface-combining filter 7 and the sample cell 2, and the mutual distance is adjusted for forming parallel light rays passing through the sample cell 2. An optical glass sheet coated with ultraviolet-excited fluorescent substances on the surface is additionally arranged behind the sample cell, and then a Sony T500 digital camera is used for focusing and shooting the fluorescent substance-excited imaging screen 13. The type of the ultraviolet-excited fluorescent substance used in the preferred embodiment is LO-113.
Example 37
The embodiment relates to a scheme of not isolating visible light, namely a mode of visible light plus ultraviolet light is adopted; referring to example 21, the ultraviolet filter 10 was removed, and the object of the present invention was also achieved by the same. The visible light emitted by the light source is not isolated and separated, so that more visible light absorption information is contained in the shot picture data.
Claims (8)
1. The device for acquiring the digitalized substance information of the liquid dispersion system is characterized by comprising a combined surface light source, a sample cell and a camera device which are sequentially arranged;
the sample cell is used for containing a liquid dispersion system to be detected;
the combined surface light source is used for emitting light rays to irradiate and penetrate through the liquid dispersion system in the sample cell;
the camera device is used for acquiring the residual light after passing through the liquid dispersion system to obtain a digital image, recording the digital image in a digital matrix form and digitizing the material information; the focusing surface of the camera device is a light emitting surface closest to the focusing surface;
the combined surface light source comprises at least 2 subunits, each subunit emits ultraviolet light and/or visible light, and the wavelength and/or the intensity of the light emitted by each subunit are different;
the combined surface light source consists of independent light sources spliced in a two-dimensional coplanar manner, and each independent light source is a subunit; or the combined surface light source comprises a primary light source, an optical device for light modulation and a surface combined optical filter which are arranged in sequence.
2. The apparatus of claim 1, wherein the optical device comprises at least one of a light-transmitting sheet with a frosted surface, a filter for absorbing and intercepting a corresponding wavelength band of the light emitted from the primary light source, a dimmer, and a filter.
3. The apparatus according to claim 2, wherein the surface-mount filter is a transparent sheet member including a transparent substrate, and the plurality of thin films provided on the transparent substrate form light absorbing regions corresponding to the surface-mount light source sub-units one-to-one by providing different types and thicknesses of the thin films.
4. The apparatus according to claim 2, wherein the surface-mount filter is a transparent sheet member including a transparent substrate and light-absorbing regions provided by chemical printing or printing in one-to-one correspondence with the surface-mount light source sub-units.
5. The apparatus for acquiring digitalized quality information according to claim 1, further comprising image processing means; the image processing device is connected with the output end of the camera device and used for storing and processing digital image data acquired by the camera device, and acquiring digital image information reflecting the spectral absorption characteristics of the liquid dispersion system to be detected as digital matter information of the liquid dispersion system.
6. The apparatus according to claim 5, wherein said sample cell comprises two light-passing surfaces arranged in parallel, and the distance between the inner side of said light-passing surfaces for confining the liquid sample is 0.5mm-100 cm; the two light passing surfaces are connected in a sealing way, and a sample inlet and a sample outlet are respectively arranged at the joint to ensure that the two light passing surfaces are communicated up and down.
7. The apparatus according to claim 1, wherein the combination surface light source emits uv light when the image capturing device captures uv light; a quartz convex lens for forming parallel light rays is arranged between the combined surface light source and the sample cell, a fluorescent substance excitation imaging screen is arranged between the sample cell and the camera device, and the camera device utilizes the residual light rays to excite the fluorescent substance to excite the fluorescence generated by the imaging screen to obtain image information; the fluorescent substance excitation imaging screen is a transparent substrate coated with ultraviolet excitation fluorescent substances on the surface.
8. A method for acquiring digitalized substance information of a liquid dispersion system is characterized in that a combined surface light source is used for emitting light based on the device of any one of claims 1-7, the characteristics of the rest light are recorded by a corresponding shooting device after the light passes through a sample to be detected, and digitalized image information reflecting the spectral absorption characteristics of the sample to be detected is obtained and is used as digitalized substance information of the sample to be detected.
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