CN113899726A - Portable passive fluorescence system for oil film oil species identification - Google Patents
Portable passive fluorescence system for oil film oil species identification Download PDFInfo
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- CN113899726A CN113899726A CN202111197677.5A CN202111197677A CN113899726A CN 113899726 A CN113899726 A CN 113899726A CN 202111197677 A CN202111197677 A CN 202111197677A CN 113899726 A CN113899726 A CN 113899726A
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- 239000010453 quartz Substances 0.000 claims abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000835 fiber Substances 0.000 claims abstract 3
- 238000000576 coating method Methods 0.000 claims description 2
- 239000013307 optical fiber Substances 0.000 abstract description 9
- 238000010891 electric arc Methods 0.000 abstract description 6
- 239000003921 oil Substances 0.000 description 26
- 238000002189 fluorescence spectrum Methods 0.000 description 8
- 238000010801 machine learning Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000002795 fluorescence method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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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
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/44—Raman spectrometry; Scattering spectrometry ; Fluorescence spectrometry
- G01J3/4406—Fluorescence spectrometry
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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
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/645—Specially adapted constructive features of fluorimeters
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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
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N2021/6417—Spectrofluorimetric devices
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- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The invention discloses a portable passive fluorescence system for oil film oil identification, which comprises a hemispherical special sample cell, wherein the hemispherical special sample cell comprises a circular base and a hemispherical top cover which are positioned at the bottom, the hemispherical top cover is detachably connected with the circular base, the center of the circular base is fixedly connected with a cylindrical quartz cuvette for placing an oil sample, the hemispherical top cover is provided with an arc opening with a quarter of a hemispherical arc, the outer side of the arc opening is provided with an electric arc slide rail, the electric arc slide rail is connected with a slide block, the electric arc slide rail controls the movement position of the slide block, the center position of the slide block is provided with a circular opening, the circular opening is provided with a first condensing lens and a short wave filter for transmitting sunlight, the bottom of the slide block is provided with an arc baffle, and the side surface of the hemispherical top cover is provided with an opening, the opening is provided with a second condenser lens and a long wave pass filter, wherein the optical fiber of the fiber spectrometer is connected in the opening.
Description
Technical Field
The invention relates to the technical field of oil film type identification, in particular to a portable passive fluorescence system for oil film oil type identification.
Background
At present, methods for identifying oil types of oil films mainly comprise a chemical gas chromatography, a laser-induced oil fluorescence method, visible light remote sensing and the like. The chemical gas chromatographic analysis method has high accuracy, but is limited by instruments and equipment, has low timeliness and is difficult to apply on site; the visible light remote sensing range is large, the timeliness is good, the field detection can be realized, but the identification precision is relatively low. The traditional laser-induced oil fluorescence method has the advantages of high accuracy and field identification. But it adopts an active excitation mode and needs at least one laser light source. The device is limited by the requirements of the laser light source on volume, power supply and cooling, is suitable for fixed detection and is not high in portability. In addition, in the daytime with strong sunlight, the fluorescence excited by the laser can be interfered by the sunlight and the fluorescence excited by the sunlight, and the identification accuracy can be reduced.
Disclosure of Invention
According to the problems existing in the prior art, the invention discloses a portable passive fluorescence system for oil film oil identification, which comprises a hemispherical special sample cell, wherein the hemispherical special sample cell comprises a circular base and a hemispherical top cover, the circular base and the hemispherical top cover are positioned at the bottom, the hemispherical top cover is detachably connected with the circular base, a cylindrical quartz cuvette for placing an oil sample is fixedly connected to the center of the circular base, an arc-shaped opening with a length of a quarter of a hemispherical arc is arranged on the hemispherical top cover, an electric arc-shaped slide rail is arranged on the outer side of the arc-shaped opening and is connected with a slide block, the electric arc-shaped slide rail controls the movement position of the slide block, a circular opening is arranged at the central position of the slide block, a first condensing lens and a short-wave pass filter for transmitting sunlight are arranged on the circular opening, and an arc-shaped baffle plate is arranged at the bottom of the slide block, the side of the hemispherical top cover is provided with an opening, a second condenser lens and a long-wave pass filter are mounted on the opening, and the optical fiber of the optical fiber spectrometer is connected in the opening.
The length of the electric arc-shaped slide rail is the same as that of the arc-shaped opening.
And lambertian body coatings are arranged on the inner side of the hemispherical top cover, the upper surface of the circular base, the bottom of the sliding block and the arc baffle.
Due to the adoption of the technical scheme, the portable passive fluorescence system for identifying the oil type of the oil film can acquire the sunlight-induced fluorescence spectrum of the oil film, and classify the sunlight-induced fluorescence spectrum of the oil film by utilizing a machine learning algorithm, so that the accurate identification of the oil type of the oil film is realized.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a schematic view of a hemispherical top cover structure in the system of the present invention
FIG. 3 is an enlarged view of a portion of a slider in the system of the present invention
FIG. 4 is an enlarged partial side view of the hemispherical dome of the system of the present invention
1. Cylindrical quartz cuvette, 10, circular base, 11, hemisphere top cap, 12, arc trompil, 13, electronic arc slide rail, 14, slider, 15, circular trompil, 16, trompil, 17, arc baffle, 151, first collector lens, 152, short wave pass filter, 161, second collector lens, 162, long wave pass filter.
Detailed Description
In order to make the technical solutions and advantages of the present invention clearer, the following describes the technical solutions in the embodiments of the present invention clearly and completely with reference to the drawings in the embodiments of the present invention:
the portable passive fluorescence system for oil film oil species identification shown in fig. 1 comprises a hemispherical special sample cell, a portable optical fiber spectrometer for fluorescence signal acquisition and a computer for fluorescence spectrum processing, wherein the hemispherical special sample cell comprises a round base 10 and a hemispherical top cover 11 which are positioned at the bottom.
As shown in fig. 2 and fig. 3, the hemispherical top cover 11 is detachably connected with the circular base 10, the central part of the circular base 10 is fixedly connected with a cylindrical quartz cuvette 1 for placing an oil sample, the hemispherical top cover 11 is provided with an arc opening 12 with a length of a quarter of a hemispherical arc, an electric arc slide rail 13 is installed outside the arc opening 12, the electric arc slide rail 13 is connected with a slide block 14, the electric arc slide rail 13 controls the movement position of the slide block 14, the central position of the slide block 14 is provided with a circular opening 15, the circular opening 15 is provided with a first condensing lens 151 and a short wave pass filter 152 for transmitting sunlight, the bottom of the sliding block 14 is provided with an arc-shaped baffle 17, the side surface of the hemispherical top cover 11 is provided with an opening 16, the opening 16 is provided with a second condenser lens 161 and a long-wave pass filter 162, and an optical fiber of the optical fiber spectrometer is connected in the opening 16.
As shown in fig. 4, the circular opening 15 of the slider 14 on the hemispherical top cover 11 is used for transmitting sunlight, the short-wave pass filter 152 is installed at the upper end of the circular opening, the first condenser lens 151 is installed at the lower end of the circular opening 15, and the short-wave sunlight passing through the short-wave pass filter 152 is converged by the first condenser lens 151 and then fixed on the quartz cuvette 1 of the circular base 10.
Further, the electric arc-shaped slide rail 13 controls the slide block 14 to move on the arc-shaped opening 12 of the hemispherical top cover 11, so that a proper position can be found according to the solar altitude angle, and the light incoming amount through the circular opening 15 of the slide block 14 is maximized.
The sample in the quartz cuvette 1 is excited by the filtered short wave sunlight to emit fluorescence, the fluorescence mixed short wave sunlight enters the opening 16 on the hemispherical top cover 11, an independent fluorescence signal is separated after passing through a long wave pass filter 162 at the lower end of the opening 16, and the fluorescence mixed short wave sunlight enters the optical fiber after being converged by a light-gathering filter 161 and enters the optical fiber type spectrometer.
The system comprises the following steps in the use process:
1) the system is used for obtaining passive fluorescence spectra of oil films of various common oils under different sunlight conditions, constructing passive fluorescence spectrum data sets of different oils, and training by using a machine learning algorithm.
2) Selecting a proper short-wave pass filter 152 to be installed on the sliding block 14, selecting a proper long-wave pass filter 162 to be installed on the opening 16 of the hemispherical top cover 11, and collecting an oil film sample to be placed in the quartz cuvette 1 in the sampling pool.
3) The hemispherical top cover 11 is installed, and the electric arc-shaped sliding rail 13 is adjusted according to the altitude angle of the sun, so that the sliding block 14 is opposite to the sun as far as possible, and the sunlight fully irradiates the sample pool.
4) The oil film is excited by sunlight to generate a fluorescent signal, the fluorescent mixed short-wave sunlight enters the opening 16 on the hemispherical top cover 11, and the single fluorescent signal is separated after passing through the long-wave pass filter 162 at the lower end of the opening 16 and is transmitted to the optical fiber of the spectrometer.
5) The spectrometer converts the fluorescence signal into a corresponding passive fluorescence spectrum and transmits the passive fluorescence spectrum to the computer.
6) And the computer classifies the collected passive fluorescence spectrum by using a trained machine learning algorithm and displays a classification result.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (3)
1. A portable passive fluorescence system for oil film oil species identification, comprising: special sample cell of hemisphere, special sample cell of hemisphere is including circular base (10) and the hemisphere top cap (11) that is located the bottom, hemisphere top cap (11) can be dismantled with circular base (10) and be connected, the central fixedly connected with of circular base (10) is used for placing cylindrical quartz cuvette (1) of oil appearance, be provided with arc trompil (12) of long for quarter hemisphere arc on hemisphere top cap (11), electronic arc slide rail (13) is installed in the outside of arc trompil (12), electronic arc slide rail (13) is connected with slider (14), the motion position of electronic arc slide rail (13) control slider (14), the central point of slider (14) puts and is provided with circular trompil (15), install first collector lens (151) and short wave pass filter (152) that are used for seeing through sunshine on circular trompil (15), the bottom of slider (14) is provided with cowl (17), the side of hemisphere top cap (11) is provided with trompil (16), install second condenser lens (161) and long wave pass filter (162) on trompil (16), wherein the optic fibre of fiber optic spectrometer is connected in trompil (16).
2. The system of claim 1, wherein: the length of the electric arc-shaped sliding rail (13) is the same as that of the arc-shaped opening (12).
3. The system of claim 1, wherein: lambert body coatings are arranged on the inner side of the hemispherical top cover (11), the upper surface of the circular base (10), the bottom of the sliding block (14) and the arc-shaped baffle (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111197677.5A CN113899726B (en) | 2021-10-14 | 2021-10-14 | Portable passive fluorescence system for oil film oil seed identification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111197677.5A CN113899726B (en) | 2021-10-14 | 2021-10-14 | Portable passive fluorescence system for oil film oil seed identification |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113899726A true CN113899726A (en) | 2022-01-07 |
| CN113899726B CN113899726B (en) | 2024-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111197677.5A Active CN113899726B (en) | 2021-10-14 | 2021-10-14 | Portable passive fluorescence system for oil film oil seed identification |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002116144A (en) * | 2000-10-11 | 2002-04-19 | Yamagata Dkk Corp | Oil film detecting apparatus |
| EP1483951A1 (en) * | 2003-06-04 | 2004-12-08 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Method and apparatus for determining fertilizer requirements in gardens |
| CN104502319A (en) * | 2014-12-25 | 2015-04-08 | 重庆大学 | Measurement device and measurement method of fluorescence quantum efficiency of half integrating spheres |
| CN106770193A (en) * | 2017-01-11 | 2017-05-31 | 江西农业大学 | Content of fenthion detection means and method in a kind of edible vegetable oil |
| CN109307666A (en) * | 2018-11-21 | 2019-02-05 | 清华大学 | A kind of Portable fluorescence spectral detection system and the method using system differentiation recycled water and drinking water |
| CN110749584A (en) * | 2019-11-20 | 2020-02-04 | 大连民族大学 | Portable fluorescence spectrometer |
| CN111380809A (en) * | 2020-05-06 | 2020-07-07 | 长春理工大学 | Method for testing oil film type based on polarization characteristic |
| CN111630372A (en) * | 2018-01-23 | 2020-09-04 | 浜松光子学株式会社 | Light measurement device and light measurement method |
| CN111965154A (en) * | 2020-09-15 | 2020-11-20 | 上海宏盾防伪材料有限公司 | Portable fluorescence coding detection device |
-
2021
- 2021-10-14 CN CN202111197677.5A patent/CN113899726B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002116144A (en) * | 2000-10-11 | 2002-04-19 | Yamagata Dkk Corp | Oil film detecting apparatus |
| EP1483951A1 (en) * | 2003-06-04 | 2004-12-08 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Method and apparatus for determining fertilizer requirements in gardens |
| CN104502319A (en) * | 2014-12-25 | 2015-04-08 | 重庆大学 | Measurement device and measurement method of fluorescence quantum efficiency of half integrating spheres |
| CN106770193A (en) * | 2017-01-11 | 2017-05-31 | 江西农业大学 | Content of fenthion detection means and method in a kind of edible vegetable oil |
| CN111630372A (en) * | 2018-01-23 | 2020-09-04 | 浜松光子学株式会社 | Light measurement device and light measurement method |
| CN109307666A (en) * | 2018-11-21 | 2019-02-05 | 清华大学 | A kind of Portable fluorescence spectral detection system and the method using system differentiation recycled water and drinking water |
| CN110749584A (en) * | 2019-11-20 | 2020-02-04 | 大连民族大学 | Portable fluorescence spectrometer |
| CN111380809A (en) * | 2020-05-06 | 2020-07-07 | 长春理工大学 | Method for testing oil film type based on polarization characteristic |
| CN111965154A (en) * | 2020-09-15 | 2020-11-20 | 上海宏盾防伪材料有限公司 | Portable fluorescence coding detection device |
Non-Patent Citations (1)
| Title |
|---|
| 侯永超 等: "岸基式海面油膜探测传感器设计", 仪表技术与传感器, no. 11, pages 7 - 11 * |
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| CN113899726B (en) | 2024-06-14 |
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