CN106767457A - A kind of water-surface oil film method for measuring thickness and device based on raman spectroscopy measurement - Google Patents
A kind of water-surface oil film method for measuring thickness and device based on raman spectroscopy measurement Download PDFInfo
- Publication number
- CN106767457A CN106767457A CN201611178894.9A CN201611178894A CN106767457A CN 106767457 A CN106767457 A CN 106767457A CN 201611178894 A CN201611178894 A CN 201611178894A CN 106767457 A CN106767457 A CN 106767457A
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- oil film
- film thickness
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- module
- probe
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- 238000001069 Raman spectroscopy Methods 0.000 title claims abstract description 37
- 238000005259 measurement Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000000523 sample Substances 0.000 claims abstract description 37
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 238000004364 calculation method Methods 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 3
- 239000003209 petroleum derivative Substances 0.000 claims abstract description 3
- 231100000719 pollutant Toxicity 0.000 claims abstract description 3
- 230000003595 spectral effect Effects 0.000 claims description 19
- 238000001228 spectrum Methods 0.000 claims description 18
- 230000003287 optical effect Effects 0.000 claims description 14
- 230000005284 excitation Effects 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 239000013307 optical fiber Substances 0.000 claims description 9
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 7
- 230000006378 damage Effects 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 208000027418 Wounds and injury Diseases 0.000 abstract description 3
- 208000014674 injury Diseases 0.000 abstract description 3
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000003911 water pollution Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003305 oil spill Substances 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 238000000985 reflectance spectrum Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The present invention discloses a kind of water-surface oil film method for measuring thickness based on raman spectroscopy measurement, using the ratio of peak of water body and petroleum hydrocarbon class pollutant Raman signal as the Calculation of Oil Film Thickness factor, in the range of certain oil film thickness, the Calculation of Oil Film Thickness factor is linear with oil film thickness；Water surface oil film thickness is finally inversed by by the survey calculation factor.Measurement apparatus include three-dimensional adjusting module, three-dimensional adjustment support and sealing shell, and control circuit for light source, probe unit and signal transacting transmission unit are provided with shell；Advantages of the present invention：The direct measurement to water body oil film thickness is capable of achieving, detection speed is fast, it is to avoid cumbersome step, without the need for chemical reagent, water quality is not influenceed in itself.Probe indoor design has switch and lens, can be prevented effectively from laser and export injury to human eye for a long time；Effectively improve Raman emission.
Description
Technical field
Patent of the present invention is related to water pollution detection field, more particularly to environmental optics detection technique field, specially base
In the water body oil film thickness measuring method and device of raman spectroscopy measurement.
Background technology
In recent years, along with the high speed development of national economy, the rivers of China, lake and marine environment water body are also suffered from
Serious destruction.Water pollution can not only damage living resources, can also endanger human health.Wherein, water body oily pollution has been
It is very prominent.For the estimation of oil spilling oil film thickness, generally use in the world《Bonn agreement》In suggestion.Its general principle
It is that oil spill thing can influence the spectral reflectivity and emissivity of water body, and the color of oil film is with the species and thickness hair of oil film
Changing, detects the reflectance spectrum of oil film so as to obtain oil film thickness information in visible light wave range.With this kind of method to thickness
Substantially estimation, error is larger, and subjective factor is strong.
Spectrum detection technique is a kind of emerging Dynamic Non-Destruction Measurement, because its have the advantages that it is simple, quick, analyze in real time
And receive much concern.But there is no at present using the measurement apparatus of raman spectroscopy measurement water body oil film thickness.
The content of the invention
The present invention fills up the blank based on raman spectroscopy measurement water body oil film thickness technology, improves environmental protection department to water
The monitoring technology level of body oil film thickness, supports for water pollution provides strong data.The present invention provides a kind of based on Raman
The water body oil film thickness measuring method and device of spectral measurement, concrete technical scheme are as follows：
A kind of water-surface oil film method for measuring thickness based on raman spectroscopy measurement, by water body and petroleum hydrocarbon class pollutant Raman
The ratio of peak of signal as the Calculation of Oil Film Thickness factor, in the range of certain oil film thickness, the Calculation of Oil Film Thickness factor with oil
Film thickness is linear；Water surface oil film thickness is finally inversed by by the survey calculation factor.
The present invention further discloses a kind of water-surface oil film measurer for thickness based on raman spectroscopy measurement, including three-dimensional
Adjusting module, three-dimensional adjustment support and sealing shell, are provided with control circuit for light source, probe unit and signal in sealing shell
Reason transmission unit；
The probe unit includes that excitation source, incident optical, probe, reception optical fiber, spectra collection module and distance are surveyed
Amount module；
The signal transacting transmission unit includes spectral manipulation module, photoelectric conversion module, data processing module and data
Coffret.
Outside host computer is connected by data transmission interface with control circuit for light source, by PC control light source control electricity
Road works, so as to control excitation source to export exciting light；Exciting light is transmitted by incident optical and sample is reached to probe,
The raman spectral signal for exciting carry out spectra collection by reception Optical Fiber Transmission to spectra collection module through popping one's head in；Spectra collection module
The Raman signal of collection is processed spectral signal through spectral manipulation module, and the spectral signal after treatment is through photoelectric conversion module
Electric signal is converted optical signal into, electric signal is transmitted to host computer after being processed through data processing module by data transmission interface
Shown.
Control circuit for light source contains Voltage stabilizing module；Excitation source is from 532nm laser as light source.
The distance between the probe tip that three-dimensional adjusting module is measured according to distance-measurement module and water body adjusting apparatus
Position, adjusts the distance between probe tip and water body, it is ensured that by three-dimensional adjustment support between probe tip and water body every time
The unification of measurement distance.
The probe is internally provided with switch and lens.
Advantages of the present invention：
Water body oil film thickness measurement apparatus based on raman spectroscopy measurement of the invention are believed using the Raman light that measurement is excited
Number inverting water body oil film thickness, is capable of achieving the direct measurement to water body oil film thickness, and detection speed is fast, it is to avoid cumbersome step,
Without the need for chemical reagent, water quality is not influenceed in itself.Probe indoor design has switch and lens, can when that need not measure
Output exciting light is closed by switching, switch is opened during test, laser can be prevented effectively from and export injury to human eye for a long time；Probe
Optical excitation signal is focused on testing sample surface by tip designs lens, can effectively improve Raman emission.Quickly, it is accurate
Solution water surface oil film thickness can improve environment department and quickly grasp water surface oil film situation of change, be effective detection water body oil
Film thickness provides strong technical support.
Brief description of the drawings
Fig. 1 is the structural representation of apparatus of the present invention.
In accompanying drawing 1：1st, data transmission joint；2nd, shell；3rd, control circuit for light source；4th, excitation source；5th, incident optical；6、
Probe；7th, three-dimensional adjusting module；8th, distance-measurement module；9th, optical fiber is received；10th, spectra collection module；11st, spectral manipulation mould
Block；12nd, photoelectric conversion module；13rd, data processing module；14th, three-dimensional adjustment support.
Fig. 2 is apparatus of the present invention sonde configuration schematic diagram.
In accompanying drawing 2：5th, incident optical；6th, pop one's head in；601st, switch；602nd, lens；9th, optical fiber is received.
Fig. 3 is No. 90 gasoline oil film thickness experiment curvs of embodiment of the present invention water surface.
Specific embodiment
A kind of structural representation of the water body oil film thickness measurement apparatus based on raman spectroscopy measurement shown in Fig. 1, including three
Dimension adjustment support 14 and sealing shell 2, are provided with control circuit for light source 3, probe unit and signal transacting transmission in the shell 2
Unit.
The three-dimensional adjusting module 7 constitutes three-dimensional adjustment unit with three-dimensional adjustment support 14；Three-dimensional adjustment support can be used
The structure driven by servomotor, servomotor is controlled by three-dimensional adjusting module, and the technology is current techique, is no longer gone to live in the household of one's in-laws on getting married herein
State.
The detection optical unit includes excitation source 4, incident optical 5, probe 6, reception optical fiber 9, spectra collection module
10 and distance-measurement module 8；
The signal transacting transmission unit includes spectral manipulation module 11, photoelectric conversion module 12, data processing module 13
With data transmission interface 1.
Wherein：
The control circuit for light source 3 contains Voltage stabilizing module, so as to ensure the exciting light of the output stabilization of excitation source 4.Wherein,
Excitation source 4 is from 532nm laser as light source.
The three-dimensional adjustment unit includes three-dimensional adjusting module 7 and three-dimensional adjustment support 14, three-dimensional adjustment unit according to away from
The position of the distance between probe tip and water body from the measurement of measurement module 8 adjusting apparatus, so as to adjust probe tip and water
The distance between body.
A kind of sonde configuration schematic diagram of the water body oil film thickness measurement apparatus based on raman spectroscopy measurement shown in Fig. 2, bag
Include incident optical 5, probe 6, probe 6, lens 602 and receive optical fiber 9.The probe 6 is internally provided with switch 601 and lens
602, output exciting light can be closed by switch 601 when testing sample 7 is changed, switch 601 is opened during test, can be prevented effectively from
Laser exports the injury to human eye for a long time；Optical excitation signal is focused on testing sample surface by 6 tip designs lens 602 of popping one's head in,
Raman emission can be effectively improved.
Outside host computer is connected by data transmission interface with control circuit for light source, by PC control light source control electricity
Road works, so as to control excitation source to export exciting light.Exciting light is transmitted by incident optical and sample is reached to probe
Raman spectral signal is excited, the raman spectral signal for exciting carry out spectrum by reception Optical Fiber Transmission to spectra collection module through popping one's head in
Collection.The Raman signal of spectra collection module collection is processed spectral signal through spectral manipulation module, the spectrum after treatment
Signal converts optical signal into electric signal through photoelectric conversion module, and electric signal is passed after being processed through data processing module by data
Defeated interface is transmitted to host computer and shown.
No. 90 gasoline oil film thickness experiment curvs of Fig. 3 embodiment of the present invention water surface.Abscissa is to represent oil film thickness,
Ordinate represents the Calculation of Oil Film Thickness factor (the Raman peaks ratio of peak I of the Raman shift of water and the Raman shift of oilwater/Ioil)。
The curve reflects the Raman peaks strength ratio of water surface oil film thickness and Raman shift with the Raman shift of oil of water well
Value is linear.The device can be applied to the measurement of the oil film thickness of water surface in 0~60 μ m.
Control circuit for light source of the invention 3, three-dimensional adjusting module 7, distance-measurement module 8, spectra collection module 10, spectrum
Processing module 11, photoelectric conversion module 12, data processing module 13, can use commercial products, such as patent of the present invention distance
Measurement module is measured from IFM Electronics UGT504 ultrasonic sensors；Spectra collection module, spectral manipulation
Module and photoelectric conversion module select marine optics HR4000；Data processing module is used and grinds magnificent PCM-3363.
Principle of the invention is：
When light action is on sample when, sample molecule can scatter incident light.There is one in the scattering light of generation
The frequency that light is penetrated in dispersion there occurs change, referred to as Raman scattering, and the difference on the frequency between scattering light and incident light is referred to as Raman
Displacement.The Raman shift that different materials is produced is different.What apparatus of the present invention were measured is the oil film thickness of water surface, treats test sample
The main component of product is water and oil.Quantitative analysis can be carried out to the oil film thickness of water surface according to the Calculation of Oil Film Thickness factor.
In the range of certain oil film thickness, the Calculation of Oil Film Thickness factor is linear with oil film thickness.By measuring oil film thickness
Calculating the factor can be finally inversed by water surface oil film thickness.
Claims (5)
1. a kind of water-surface oil film method for measuring thickness based on raman spectroscopy measurement, it is characterised in that：By water body and petroleum hydrocarbon
The ratio of peak of pollutant Raman signal is used as the Calculation of Oil Film Thickness factor, in the range of certain oil film thickness, oil film thickness meter
Calculate the factor linear with oil film thickness；Water surface oil film thickness is finally inversed by by the survey calculation factor.
2. a kind of water-surface oil film measurer for thickness based on raman spectroscopy measurement, it is characterised in that：Including three-dimensional adjusting module,
Three-dimensional adjustment support and sealing shell, are provided with the transmission of control circuit for light source, probe unit and signal transacting single in sealing shell
Unit；The probe unit includes excitation source, incident optical, probe, reception optical fiber, spectra collection module and range measurement mould
Block；
The signal transacting transmission unit includes spectral manipulation module, photoelectric conversion module, data processing module and data transfer
Interface；
Outside host computer is connected by data transmission interface with control circuit for light source, by PC control control circuit for light source work
Make, so as to control excitation source to export exciting light；Exciting light is transmitted by incident optical and sample is reached to probe, is excited
Raman spectral signal carry out spectra collection by reception Optical Fiber Transmission to spectra collection module through popping one's head in；Spectra collection module is gathered
Raman signal spectral signal is processed through spectral manipulation module, the spectral signal after treatment is through photoelectric conversion module by light
Signal is converted into electric signal, and electric signal is transmitted to host computer by data transmission interface after being processed through data processing module and carried out
Display.
3. water-surface oil film measurer for thickness according to claim 2, it is characterised in that：Control circuit for light source contains voltage stabilizing
Module；Excitation source is from 532nm laser as light source.
4. water-surface oil film measurer for thickness according to claim 2, it is characterised in that：Three-dimensional adjusting module is according to distance
The position of the distance between the probe tip and water body of measurement module measurement adjusting apparatus, probe is adjusted by three-dimensional adjustment support
The distance between top and water body.
5. water-surface oil film measurer for thickness according to claim 2, it is characterised in that：The probe is internally provided with out
Close and lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611178894.9A CN106767457A (en) | 2016-12-19 | 2016-12-19 | A kind of water-surface oil film method for measuring thickness and device based on raman spectroscopy measurement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611178894.9A CN106767457A (en) | 2016-12-19 | 2016-12-19 | A kind of water-surface oil film method for measuring thickness and device based on raman spectroscopy measurement |
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| CN201611178894.9A Pending CN106767457A (en) | 2016-12-19 | 2016-12-19 | A kind of water-surface oil film method for measuring thickness and device based on raman spectroscopy measurement |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108120385A (en) * | 2018-01-15 | 2018-06-05 | 天津大学 | The measuring system and method for the attached wall oil film thickness of GDI Spray Impingements and quality |
| CN109489567A (en) * | 2017-09-12 | 2019-03-19 | 通用汽车环球科技运作有限责任公司 | Determine that carbon applies the thickness of the sub-micron carbon coating on metal substrate by Raman spectrum analysis |
| CN109798835A (en) * | 2019-02-20 | 2019-05-24 | 同济大学 | Asphalt pavement surface water film thickness single-point monitoring device and installation method |
| CN110160452A (en) * | 2019-06-19 | 2019-08-23 | 哈尔滨工业大学（威海） | The measurement method of water-surface oil film thickness based on LR laser raman and laser fluorescence |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489567A (en) * | 2017-09-12 | 2019-03-19 | 通用汽车环球科技运作有限责任公司 | Determine that carbon applies the thickness of the sub-micron carbon coating on metal substrate by Raman spectrum analysis |
| CN109489567B (en) * | 2017-09-12 | 2021-03-09 | 通用汽车环球科技运作有限责任公司 | Determining the thickness of submicron carbon coatings on carbon-coated metal substrates by Raman spectroscopy |
| CN108120385A (en) * | 2018-01-15 | 2018-06-05 | 天津大学 | The measuring system and method for the attached wall oil film thickness of GDI Spray Impingements and quality |
| CN109798835A (en) * | 2019-02-20 | 2019-05-24 | 同济大学 | Asphalt pavement surface water film thickness single-point monitoring device and installation method |
| CN110160452A (en) * | 2019-06-19 | 2019-08-23 | 哈尔滨工业大学（威海） | The measurement method of water-surface oil film thickness based on LR laser raman and laser fluorescence |
| CN110160452B (en) * | 2019-06-19 | 2020-09-01 | 哈尔滨工业大学（威海） | Method for measuring thickness of water surface oil film based on laser Raman and laser fluorescence |
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Application publication date: 20170531 |