CN203870023U - Fiber optic spectrometer containing blank solution - Google Patents
Fiber optic spectrometer containing blank solution Download PDFInfo
- Publication number
- CN203870023U CN203870023U CN201320744151.9U CN201320744151U CN203870023U CN 203870023 U CN203870023 U CN 203870023U CN 201320744151 U CN201320744151 U CN 201320744151U CN 203870023 U CN203870023 U CN 203870023U
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- CN
- China
- Prior art keywords
- light source
- circuit
- control circuit
- fiber
- fiber spectrometer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 32
- 239000012490 blank solution Substances 0.000 title abstract description 3
- 238000001228 spectrum Methods 0.000 claims abstract description 15
- 239000013307 optical fiber Substances 0.000 claims description 24
- 230000003595 spectral effect Effects 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 4
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical group [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 claims description 3
- 229910052805 deuterium Inorganic materials 0.000 claims description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052753 mercury Inorganic materials 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 229910052724 xenon Inorganic materials 0.000 claims description 3
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 3
- 244000309464 bull Species 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 4
- 238000004458 analytical method Methods 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000011897 real-time detection Methods 0.000 abstract 1
- 239000000523 sample Substances 0.000 description 17
- 238000001514 detection method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000002189 fluorescence spectrum Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 239000012086 standard solution Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- OVSKIKFHRZPJSS-UHFFFAOYSA-N 2,4-D Chemical compound OC(=O)COC1=CC=C(Cl)C=C1Cl OVSKIKFHRZPJSS-UHFFFAOYSA-N 0.000 description 1
- 235000002566 Capsicum Nutrition 0.000 description 1
- 239000006002 Pepper Substances 0.000 description 1
- 235000016761 Piper aduncum Nutrition 0.000 description 1
- 235000017804 Piper guineense Nutrition 0.000 description 1
- 244000203593 Piper nigrum Species 0.000 description 1
- 235000008184 Piper nigrum Nutrition 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000003891 environmental analysis Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010812 external standard method Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000010166 immunofluorescence Methods 0.000 description 1
- 238000010813 internal standard method Methods 0.000 description 1
- 238000001499 laser induced fluorescence spectroscopy Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 238000012113 quantitative test Methods 0.000 description 1
- 238000011896 sensitive detection Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004441 surface measurement Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model discloses a fiber optic spectrometer containing a blank solution. The fiber optic spectrometer comprises a light path part, a reference cell, a circuit part and an IPC (industrial personal computer), wherein the light path part comprises a light source controller, a light source, a sample cell, a monochromator and an optical detector which are sequentially connected; the circuit part comprises a light source control circuit, a spectrum data acquisition and analysis system and a time resolution circuit which are connected with the IPC; the light source controller is connected with the light source control circuit; the optical detector is connected with the spectrum data acquisition and analysis system and the time resolution circuit respectively; the light source, the reference cell, the monochromator and the optical detector are sequentially connected. The fiber optic spectrometer has the advantages of small size, convenience in carrying, flexibility in application on site and low cost and can perform real-time detection and monitoring on samples conveniently.
Description
Technical field
The utility model relates to a kind of fiber spectrometer of built-in blank.
Background technology
Fluorescence refers to that some compound, after the optical excitation that is subject to certain wavelength, launches the light that wavelength is greater than excitation wavelength within the utmost point short time.Utilize this phenomenon, can realize highly sensitive detection to this compounds, detection technique of fluorescence, in medical treatment, has increasing application in residues of pesticides and Environmental Studies.Fluoroscopic examination is a kind of non-contacting indirect light spectral technology, and highly sensitive, specificity is good.In recent years, some researchers have also developed the Pesticides Testing instrument based on detection technique of fluorescence, and for example, the use optical fiber immunofluorescence assays such as Richard have been measured residual in water of dichlorophenoxyacetic acid, and detection sensitivity reaches 0.68 × 10
-4μ g/L; Renee etc. have developed countryside portable three-dimensional fluorescence spectrum instrument, have obtained the three-dimensional fluorescence spectrogram of palycyclic aromatic PAHs, and measurement wavelength coverage is 220nm～950nm, and lowest detectable limit has reached 1.6 × 10
-4μ g/L; Pepper etc. utilize induced with laser and taper printing opacity technology to develop a kind of multichannel optical fiber fluorescence detecting system, and use it for on-site measurement soil surface pollutant, he has designed special fibre-optical probe can surface measurement, also can carry out soil internal measurement, and utilize grating beam splitting and CCD light spectrum image-forming, can once obtain two dimension or three-dimensional fluorescence spectrum, spectral range is 300～450nm spectral range.Laser Induced Fluorescence Technology, owing to having adopted this intense light source of laser as exciting light, will provide higher sensitivity for detecting.
Fluorescence optical fiber spectral technique, easy to use because of it, simple in structure, in environmental pollutant analysis, Site Detection and environmental analysis, there is very strong application prospect.But it is in application process, and in order to realize its portable requirement, its detection sensitivity, accuracy and reappearance are difficult problems that needs customer service.Meanwhile, because on-the-spot Pretreatment is limited, the complicacy of on-the-spot actual sample matrix, and also site environment is also more severe, and the drift of environment, matrix and circuit, can affect to the result of its detection.The reason that causes fluctuation mainly contains: 1, the fluctuation of light source and variation.The fluctuation of light source is almost unavoidable.Such as light sources such as deuterium lamp, xenon lamp, tungsten lamp, mercury lamp, hollow cathode lamps, in luminous process, light intensity has fluctuation; 2, no matter photovoltaic converter, be the response of photoelectric cell, photomultiplier, photodiode, diode array, in preheating, work, exists fluctuation; 3, the fluctuation of light source driver circuit; Light source driving circuit is because the problem of the aspect such as preheating, thermal stability of electron device; 4, signals collecting circuit fluctuation; 5, amplifying circuit fluctuation; 6, the fluctuation such as environment temperature, humidity.
Meanwhile, fluorescence optical fiber spectrometer is in real application, and because sample cannot carry out the pre-treatment of the degree of depth, matrix interference is quantitative and qualitative analysis seriously; In quantitative test, adopt internal standard method, more difficult, and adopt external standard method, if adopt the typical curve of typing in advance, the instrument interference bringing of fluctuating is very large, and the method for employing field fabrication typical curve, operation and the workload of processing are huge, execute-in-place difficulty.
Utility model content
The purpose of this utility model is to provide a kind of fiber spectrometer of built-in blank, promotes adopting built-in standard solution, as correction, by reference and the blank solution of multichannel optical fiber and special setting.
The fiber spectrometer of a kind of built-in blank provided by the utility model, comprises light path part, reference cell, circuit part and industrial computer;
Described light path part comprises the light source controller, light source, sample cell, monochromator and the photodetector that connect successively;
Described circuit part comprises control circuit for light source, spectrum data gathering analytic system and time resolution circuit, and described control circuit for light source, described spectrum data gathering analytic system and described time resolution circuit are all connected with described industrial computer;
Described light source controller is connected with described control circuit for light source; Described photodetector is connected with described time resolution circuit with spectrum data gathering analytic system respectively;
Described light source, described reference cell, described monochromator and described photodetector are connected successively.
In described fiber spectrometer, between described light source and described sample cell, be connected by optical fiber, by described optical fiber, the light of light source be incorporated into described sample cell, with the fluorescence of sample in excited sample pond.
In described fiber spectrometer, described optical fiber can be bull optical fiber.
In described fiber spectrometer, described fiber optics can be silica fibre or glass optical fiber.
In described fiber spectrometer, described monochromator is connected with spectral scan control circuit, and described spectral scan control circuit is connected with described industrial computer.
In described fiber spectrometer, described photodetector can be photomultiplier;
Described monochromator is connected with stepper motor.
In described fiber spectrometer, described photodetector can be diode array detector, photoelectric cell, photodiode, photodiode array or electron-multiplier.
In described fiber spectrometer, described control circuit for light source, described spectrum data gathering analytic system and described time resolution circuit are all connected with described industrial computer by communication controller.
In described fiber spectrometer, described light source can be deuterium lamp, xenon lamp, tungsten lamp, mercury lamp, hollow cathode lamp, LASER Light Source or emitting led.
Compared with prior art, the beneficial effects of the utility model are:
1) the utility model is built-in calibration standard solution pool (reference cell), by the self-contained standard solution of instrument, to reduce by the mode of outside adjustment solution, brings the loaded down with trivial details and deviation in detecting at the scene;
2) the utility model utilizes optical fiber technology, and is applied to rig-site utilization and Real-Time Monitoring;
3) the utility model adopts optical fiber scanning, has overcome and has moved the problem that toilet does not bring because of sample.
The utlity model has volume little, easy to carry, site of deployment is flexible, and the advantage that cost is low can be carried out real-time examination and controlling to sample easily.
Brief description of the drawings
Fig. 1 is the structural representation of the fiber spectrometer of built-in blank reference of the present utility model.
Fig. 2 is the index path that in the utility model, photodetector is photomultiplier.
Fig. 3 is that in the utility model, photodetector is the index path of diode permutation detecting device.
In figure, each mark is as follows:
1 light source controller, 2 light sources, 3 sample cells, 4 monochromators, 5 photodetectors, 6 control circuit for light source, 7 spectral scan control circuits, 8 spectrum data gathering analytic systems, 9 time resolution circuit, 10 communication controllers, 11 industrial computers, 12 optical fiber, 13 slits, 14 gratings, 15 stepper motors, 16 reflective mirrors, 17 photomultipliers, 18 diode array detector, 19 reference cells.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further, but the utility model is not limited to following examples.
The fiber spectrometer of the built-in blank that as shown in Figure 1, the utility model provides comprises light path part, circuit part and industrial computer 11; Wherein, light path part comprises the pulse power source control device 1, light source 2, sample cell 3, monochromator 4 and the photodetector 5 that connect successively, circuit part comprises the control circuit for light source 6, spectral scan control circuit 7, spectrum data gathering analytic system 8 and the time resolution circuit 9 that are all connected with industrial computer 11, and control circuit for light source 6, spectral scan control circuit 7, spectrum data gathering analytic system 8 and time resolution circuit 9 are all connected with industrial computer 11 by communication controller 10.Light source 2, reference cell 19, monochromator 4 and photodetector 5 are connected in turn.Pulse power source control device 1 is connected with control circuit for light source 6, and the 6 gating pulse power-supply controller of electric output pulses of this control circuit for light source and continuous light signal are to light source 2; Light source 2 is connected by optical fiber with sample cell 3; After exciting light passes through on fiber-optic illuminated sample in sample cell 3, by the grating in monochromator 4 or prism, then enter in photodetector 5, wherein, monochromator 4 is connected with spectral scan control circuit 7.Photodetector 5 is connected with time resolution circuit 9 with spectra collection analytic system 8 respectively.
When in the utility model, photodetector is chosen as photomultiplier, optic path as shown in Figure 2.The common optical fiber 12 of crossing of exciting light of the light source 2 that can modulate, is irradiated to after sample, and the fluorescence exciting is irradiated on the grating 14 of monochromator after arriving slit 13 by another port of optical fiber, separates with utilizing emitted light through exciting light.If need to realize spectral scan, can control by stepper motor 15 angle of grating 14, utilizing emitted light after monochrome can be irradiated to photomultiplier 17 by catoptron 16 and realize light detection, exciting light is introduced reference cell 19 by same optical fiber 12, excite the fluorescence of reference by after monochromator 4, accepted by photomultiplier 17.
When in the utility model, photodetector is chosen as diode array, optic path as shown in Figure 3.The common optical fiber 12 of crossing of exciting light of the light source 2 that can modulate, be irradiated to after sample, the fluorescence exciting is irradiated on the grating 14 of monochromator after arriving slit 13 by another port of optical fiber, separate with utilizing emitted light through exciting light, spectral illumination after separation obtains spectral signal on diode array detector 18, exciting light is introduced reference cell 19 by same optical fiber 12, excites the fluorescence of reference by after monochromator 4, accepted by light diode array 17.
Utilize the utility model realize fluorescence spectrum detect method as follows:
By control circuit for light source, light source is set to normal on-mode, and under this pattern, light source is not modulated, is normally open.By the rotation of step motor control grating, carry out spectral scan.
Claims (9)
1. a fiber spectrometer for built-in blank, is characterized in that: described fiber spectrometer comprises light path part, reference cell, circuit part and industrial computer;
Described light path part comprises the light source controller, light source, sample cell, monochromator and the photodetector that connect successively;
Described circuit part comprises control circuit for light source, spectrum data gathering analytic system and time resolution circuit, and described control circuit for light source, described spectrum data gathering analytic system and described time resolution circuit are all connected with described industrial computer;
Described light source controller is connected with described control circuit for light source; Described photodetector is connected with described time resolution circuit with spectrum data gathering analytic system respectively;
Described light source, described reference cell, described monochromator and described photodetector are connected successively.
2. fiber spectrometer according to claim 1, is characterized in that: between described light source and described sample cell, be connected by optical fiber.
3. fiber spectrometer according to claim 2, is characterized in that: described optical fiber is bull optical fiber.
4. according to the fiber spectrometer described in claim 2 or 3, it is characterized in that: described fiber optics is silica fibre or glass optical fiber.
5. fiber spectrometer according to claim 1 and 2, is characterized in that: described monochromator is connected with spectral scan control circuit, and described spectral scan control circuit is connected with described industrial computer.
6. fiber spectrometer according to claim 5, is characterized in that: described photodetector is photomultiplier;
Described monochromator is connected with stepper motor.
7. fiber spectrometer according to claim 5, is characterized in that: described photodetector is diode array detector, photoelectric cell, photodiode, photodiode array or electron-multiplier.
8. fiber spectrometer according to claim 1 and 2, is characterized in that: described control circuit for light source, described spectrum data gathering analytic system and described time resolution circuit are all connected with described industrial computer by communication controller.
9. fiber spectrometer according to claim 1 and 2, is characterized in that: described light source is deuterium lamp, xenon lamp, tungsten lamp, mercury lamp, hollow cathode lamp, LASER Light Source or emitting led.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320744151.9U CN203870023U (en) | 2013-11-21 | 2013-11-21 | Fiber optic spectrometer containing blank solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320744151.9U CN203870023U (en) | 2013-11-21 | 2013-11-21 | Fiber optic spectrometer containing blank solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203870023U true CN203870023U (en) | 2014-10-08 |
Family
ID=51650963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320744151.9U Expired - Lifetime CN203870023U (en) | 2013-11-21 | 2013-11-21 | Fiber optic spectrometer containing blank solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203870023U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211803A (en) * | 2018-09-17 | 2019-01-15 | 中国科学院生态环境研究中心 | A kind of device that micro- plastics are quickly identified based on micro- multispectral technology |
| CN112835190A (en) * | 2021-01-04 | 2021-05-25 | 桂林电子科技大学 | Double-core optical fiber light control and dynamic speckle illumination microscopic imaging method and system |
-
2013
- 2013-11-21 CN CN201320744151.9U patent/CN203870023U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211803A (en) * | 2018-09-17 | 2019-01-15 | 中国科学院生态环境研究中心 | A kind of device that micro- plastics are quickly identified based on micro- multispectral technology |
| CN109211803B (en) * | 2018-09-17 | 2020-10-09 | 中国科学院生态环境研究中心 | Device for rapidly identifying micro plastic based on microscopic multispectral technology |
| CN112835190A (en) * | 2021-01-04 | 2021-05-25 | 桂林电子科技大学 | Double-core optical fiber light control and dynamic speckle illumination microscopic imaging method and system |
| CN112835190B (en) * | 2021-01-04 | 2022-08-09 | 桂林电子科技大学 | Based on two core optic fibre light manipulation and dynamic speckle illumination microscopic imaging system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |