CN104535512A - Device capable of testing transmission absorption spectrum of multiple physical liquid combinations - Google Patents
Device capable of testing transmission absorption spectrum of multiple physical liquid combinations Download PDFInfo
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- CN104535512A CN104535512A CN201410777278.XA CN201410777278A CN104535512A CN 104535512 A CN104535512 A CN 104535512A CN 201410777278 A CN201410777278 A CN 201410777278A CN 104535512 A CN104535512 A CN 104535512A
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Abstract
The invention belongs to the technical field of spectrum test and analysis and in particular relates to a device capable of testing the transmission absorption spectrum of multiple physical liquid combinations used for achieving rapid measurement and analysis of the multiple physical liquid combinations. The device comprises N layers of coaxial rotating disc bodies, wherein each rotating disc body comprises M liquid dishes; each layer of rotating disc bodies is independently driven by different stepping motors; the two stepping motors are respectively fixed on a shading shell; a wide spectrum light source is guided to an optical collimator by virtue of an optical fiber; the optical collimator is fixedly arranged above the shell and is vertically aligned with the combined liquid dishes of the rotating discs; measuring light penetrates through the liquid dishes on the upper and lower layers; and light absorbed by the liquid in the liquid dishes is received by the lower optical collimator and is conducted to a spectrograph by virtue of the optical fiber. According to the device, any two liquid samples can be combined, the transmission absorption spectrum is measured, and according to the device for testing the transmission absorption spectrum of multiple liquid combinations, the physical compositions of multiple kinds of liquid can be conveniently and rapidly analyzed.
Description
Technical field
The invention belongs to spectrum test and analysis technical field, what be specifically related to a kind of Quick Measurement for realizing plurality of liquid physical combination and analysis realizes the device that plurality of liquid physical combination transmission absorbance spectroscopy tests.
Background technology
Spectral analysis is all widely used in every field.Chemically, the light absorption of many organic substances is an important intrinsic propesties, therefore can differentiate material with absorption spectrum and infer the structure of sample; At occurring in nature, chlorophyll has its specific absorption spectrum; Biologically, various disease can be diagnosed from the absorption spectrum of human serum; The ultra-violet absorption spectrum of medicine can also be utilized to carry out quantitative test to medicine, and therefore absorption spectroanalysis technology is with a wide range of applications.
When sample is subject to frequency continually varying Infrared irradiation, the radiation of some frequency of molecule absorption, generation molecular vibration energy level and rotational energy level, from ground state to the transition of excited state, make the transmitted intensity corresponding to these absorption regions weaken.The record percentage transmittance of infrared light and wave number or wavelength plot, just obtain infrared spectrum.The infrared spectrum of material is the reflection of its molecular structure, and the absorption peak in spectrogram is corresponding with the vibration mode of group each in molecule.
Absorption spectrum, has another name called absorption curve, is by the monochromatic light of different wave length successively by analyte, records the absorbance under different wave length or transmittance respectively, then draws absorption intensity parameter---and wavelength curve, this curve is the absorption spectrum of material.Absorption spectrum is an intrinsic propesties of material.Often kind of material has the absorption spectrum curve of its uniqueness, and some has obvious absorption peak or through peak.If find certain characteristic peak when carrying out the measurement of absorption spectrum to solution, the existence of certain material in solution can be judged.
Under normal circumstances, the absorption spectrum of liquid is measured by this dedicated optical spectrometer of spectrophotometer.It reflects the absorption spectrum of fluid sample by transmitted spectrum.In order to improve absorption spectrum measuring technique, publication number is that the utility model patent of CN201000421 gives a kind of super bright LED source that can be used for visible spectrophotometer.Publication number is that the utility model patent of CN2526807 then discloses a kind of modified spectrophotometer adopting the way of rotating prism to realize monochromatic spectrum numerical value digitizing display.
But, transmission absorbance spectroscopy measurement is carried out for a unknown fluid sample, combination liquid absorption spectrum how can be obtained fast fast by the physical combination of multiple known fluid sample, providing unknown liquid further by comparison is mixed by those known liquid, be then the problem to be solved in the present invention.
Summary of the invention
The object of the invention is to the deficiency existed for spectrophotometer, propose a kind of proving installation that can be carried out the incompatible quick acquisition combination liquid absorption spectrum of physical set fast by multiple known fluid sample.
The object of the present invention is achieved like this:
A kind of device realizing the test of plurality of liquid physical combination transmission absorbance spectroscopy, comprise N layer coaxial rotating disk body 1, N>=2, each rotation disk body has M liquid ware 2, M>=6, every layer rotates disk body respectively by different stepper motor drive, two stepper motors are then separately fixed on lucifuge housing 5, wide spectrum light source 6 is directed to optical fiber collimator 8 via optical fiber 7, optical fiber collimator is fixed on above housing, perpendicular alignmnet rotating disc combination liquid ware, measure light through upper, lower two-layer liquid ware, the optical fiber collimator 9 that light after liquid absorption in liquid ware is fixed on below receives and by fiber optic conduction to spectrometer 10, calculating absorbance log is
i (λ) is absorption spectrum intensity, I
0(λ) be incident light spectrum intensity.
Beneficial effect of the present invention is: this device is owing to employing multiple symmetrical fluid sample, by upper and lower two-layer rotating disk relative motion, just can realize any two kinds of fluid samples to carry out combining and recording transmission absorbance spectroscopy, this many liquid combination transmission absorbance spectroscopy proving installation, can realize the physical combination constituent analysis of plurality of liquid easily and efficiently.With compared with first technology, for the complicated Analysis of physical composition realizing unknown liquid absorption spectrum fast have easy to operate, analyze quick, use the advantages such as flexible, provide advanced method for realizing efficient liquid spectroscopic compositional analyses.
Accompanying drawing explanation
Fig. 1 is the structural representation that can realize plurality of liquid physical combination transmission absorbance spectroscopy measurement mechanism;
Fig. 2 is the three-dimensional mechanical structure assembly drawing of this device;
Fig. 3 is the plane of rotor disc figure of carrying six fluid sample wares;
Fig. 4 is the plane of rotor disc figure of the multiple fluid sample ware of carrying extended;
Fig. 5 is the rotating disk transverse section of carrying six fluid sample wares;
Fig. 6 is that upper and lower two-layer liquid rotating disk is aimed at and carries out the schematic diagram of liquids reason combination transmitted spectrum measurement;
Fig. 7 is that multilayer liquid rotating disk is aimed at and carries out the schematic diagram of liquids reason combination transmitted spectrum measurement.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in more detail:
The present invention proposes a kind of device realizing the test of plurality of liquid physical combination transmission absorbance spectroscopy.This device is made up of two coaxial rotating disk bodies (1), each rotation disk body includes six liquid wares (2), upper and lower two-layer liquid ware can form the non-compatibility physical combination of 12 kinds of liquid, can realize the testing and analyzing of plurality of liquid physical combination transmitted spectrum fast.Two-layer separately independently rotating disk respectively by stepper motor (3) and (4) drive, to realize the combination of two of 12 kinds of liquid.Two stepper motors are then separately fixed on lucifuge housing (5).Wide spectrum light source (6) is directed to optical fiber collimator (8) via optical fiber (7), and this optical fiber collimator is fixed on above housing, aims at rotating disc combination liquid ware.Measure light through upper and lower two-layer combination liquid, the optical fiber collimator (9) that the light after liquid absorption is fixed on below receives and by fiber optic conduction to spectrometer (10).
This plurality of liquid physical combination absorption spectrum measuring apparatus can be used for realizing the measurement of unknown liquid by absorption spectrum line structure, then passes through the known comparison of plurality of liquid absorption spectrum and the method for combination, can analyze the composition of unknown liquid.In addition, we also can by calculating absorption spectrum intensity I (λ) and incident light spectrum intensity I
0(λ) log ratio
method, definition absorbance log be
realize the quantitative measurment of the concentration of various composition.Therefore, by with known fluid sample comparative analysis and calculating, device provided by the present invention can not only realize the measuring and analysis of plurality of liquid component, and by calculate realize to plurality of liquid component, content or concentration carry out quantitative measurment and analysis separately.
Based on technical characteristics of the present invention, can also further expand the present invention.Described plurality of liquid is carried respectively by rotating symmetrical multiple liquid wares, and namely the number of liquid ware can be six, also can be more, symmetrical and be uniformly distributed on a rotary disc.In addition, do not violate the spirit of the present invention, the rotating disc of carrying plurality of liquid sample also can be multiple, and respective drive respectively, to realize the multiple measurement of more kinds of liquid.
Composition graphs 1-Fig. 3, embodiments of the present invention are, the liquid ware cleaned up 12 injects 12 kinds of fluid analysis samples and respectively label respectively, and wherein several is known liquid, other several be then unknown liquid to be measured.By rotating supernatant liquid sample disc and lower floor's liquid sample disc respectively, just can realize plurality of liquid physical combination, thus realize the test of the rear transmission absorbance spectroscopy of combination.
Concrete measuring method is as follows: wide spectrum light source (6) is directed to optical fiber collimator (8) via optical fiber (7), and this optical fiber collimator is fixed on above housing, aims at rotating disc combination liquid ware.Measure light through upper and lower two-layer combination liquid, the optical fiber collimator (9) that the light after liquid absorption is fixed on below receives and by fiber optic conduction to spectrometer (10).Because each rotation disk body includes six liquid wares (2), upper and lower two-layer liquid ware can form the non-compatibility physical combination of 12 kinds of liquid, and therefore the present invention can realize the testing and analyzing of plurality of liquid physical combination transmitted spectrum fast.Two-layer separately independently rotating disk respectively by stepper motor (3) and (4) drive, to realize the combination of two of 12 kinds of liquid.Two stepper motors are then separately fixed on lucifuge housing (5).The given fixed angle of each dial rotation can be realized by driving circuit, thus upper and lower two kinds of carrying different liquids planchets are aimed at, complete the physical combination transmission measurement of any two kinds of fluid samples.
The device that the present embodiment provides realizes the physical combination of any two kinds of liquid by the plurality of liquid ware of upper and lower two-layer coaxial rotation.For embodying thought of the present invention further, this rotating disk can extend further to N (N >=2) layer coaxial turntable, every layer of rotating disk drive separately, just can the combination absorption spectrum of Quick Measurement plurality of liquid.As shown in Figure 7.
In addition, in device given by the present invention, every layer of coaxial turntable is made up of six liquid wares.For expanding effect of the present invention further, this rotating disk also can extend further to M (M >=6) individual liquid ware composition, as shown in Figure 4, and just can the combination absorption spectrum of Quick Measurement N × M kind liquid.
Claims (1)
1. one kind can realize the device of plurality of liquid physical combination transmission absorbance spectroscopy test, comprise N layer coaxial rotating disk body (1), N>=2, each rotation disk body has M liquid ware (2), M>=6, it is characterized in that: every layer rotates disk body respectively by different stepper motor drive, two stepper motors are then separately fixed on lucifuge housing (5), wide spectrum light source (6) is directed to optical fiber collimator (8) via optical fiber (7), optical fiber collimator is fixed on above housing, perpendicular alignmnet rotating disc combination liquid ware, measure light through upper, lower two-layer liquid ware, light after liquid absorption in liquid ware be fixed on below optical fiber collimator (9) receive and by fiber optic conduction to spectrometer (10), calculating absorbance log is
i (λ) is absorption spectrum intensity, I
0(λ) be incident light spectrum intensity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410777278.XA CN104535512B (en) | 2014-12-15 | 2014-12-15 | Device capable of testing transmission absorption spectrum of multiple physical liquid combinations |
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| CN201410777278.XA CN104535512B (en) | 2014-12-15 | 2014-12-15 | Device capable of testing transmission absorption spectrum of multiple physical liquid combinations |
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| CN104535512A true CN104535512A (en) | 2015-04-22 |
| CN104535512B CN104535512B (en) | 2017-04-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106124422A (en) * | 2016-08-10 | 2016-11-16 | 江苏康正生物科技有限公司 | A kind of highly effective pesticide residual measurement apparatus |
| CN106680223A (en) * | 2016-12-26 | 2017-05-17 | 哈尔滨工程大学 | Fiber-integrated transmitting absorbing type spectrum probe and manufacturing method |
| CN108593555A (en) * | 2018-07-04 | 2018-09-28 | 河南农业大学 | Multichannel absorption spectrum monitor station and detecting system |
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| US5510621A (en) * | 1994-10-03 | 1996-04-23 | Optical Solutions, Inc. | Apparatus and method for measuring components in a bag |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106124422A (en) * | 2016-08-10 | 2016-11-16 | 江苏康正生物科技有限公司 | A kind of highly effective pesticide residual measurement apparatus |
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| CN106680223A (en) * | 2016-12-26 | 2017-05-17 | 哈尔滨工程大学 | Fiber-integrated transmitting absorbing type spectrum probe and manufacturing method |
| CN106680223B (en) * | 2016-12-26 | 2019-07-16 | 哈尔滨工程大学 | Fiber integrates transmission absorption formula spectral probe and production method |
| CN108593555A (en) * | 2018-07-04 | 2018-09-28 | 河南农业大学 | Multichannel absorption spectrum monitor station and detecting system |
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| CN104535512B (en) | 2017-04-12 |
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Effective date of registration: 20210517 Address after: 541004 room 661, No.1 Jinji Road, Qixing District, Guilin City, Guangxi Zhuang Autonomous Region Patentee after: GUILIN University OF ELECTRONIC TECHNOLOGY Address before: 150001 Intellectual Property Office, Harbin Engineering University science and technology office, 145 Nantong Avenue, Nangang District, Harbin, Heilongjiang Patentee before: HARBIN ENGINEERING University |