CN107631983A - A kind of multispectral parallel generation device of sample for water analysis - Google Patents
A kind of multispectral parallel generation device of sample for water analysis Download PDFInfo
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- CN107631983A CN107631983A CN201710992189.0A CN201710992189A CN107631983A CN 107631983 A CN107631983 A CN 107631983A CN 201710992189 A CN201710992189 A CN 201710992189A CN 107631983 A CN107631983 A CN 107631983A
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- 238000004457 water analysis Methods 0.000 title claims abstract description 17
- 239000000523 sample Substances 0.000 claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000001228 spectrum Methods 0.000 claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 19
- 238000001069 Raman spectroscopy Methods 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 15
- 230000003287 optical effect Effects 0.000 claims abstract description 15
- 239000007850 fluorescent dye Substances 0.000 claims abstract description 8
- 230000001360 synchronised effect Effects 0.000 claims abstract description 7
- 238000000862 absorption spectrum Methods 0.000 claims abstract description 6
- 238000002189 fluorescence spectrum Methods 0.000 claims abstract 3
- 230000000694 effects Effects 0.000 claims description 15
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000002835 absorbance Methods 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 230000001960 triggered effect Effects 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000007689 inspection Methods 0.000 description 4
- 239000013307 optical fiber Substances 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000295 emission spectrum Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The invention discloses a kind of multispectral parallel generation device of sample for water analysis, it includes transmitter unit, test cell and receiving unit.It is characterized in that：The transmitter unit includes light-pulse generator 1, diffraction grating 2, grating synchronization deflector 3 and optical branching device 4, and the scanning homogeneous beam of different wave length is produced with adjustable time cycle and duration；The test cell includes collimation microscope group 5, Raman probe 6, fluorescent probe 7, sample measuring cell 8, after scanning homogeneous beam is received, detects light beam caused different type optical effect in water body；The receiving unit includes triple channel spectrometer 9 and embedded computer 10, is responsible for synchronized transmissions unit, test cell and receiving unit with parallel generation absorption spectrum, raman scattering spectrum and fluorescence emission spectrum data signal.The present invention can generate three kinds of sample spectras of different nature simultaneously on same set of light path detection device, be calculated for optical method water quality monitoring.
Description
Technical field
The present invention relates to a kind of sample spectra generating means for optical method water quality monitoring, belong to water quality monitoring technology neck
Domain.
Background technology
Water resource is to ensure the valuable source of social development and economic development, and water analysis can be available to current China
Water resource carries out assessment identification, finds the problem of water resource is present in time and provides reference for solution.
Optical method water quality inspection technique is a kind of new water quality inspection technique, has analyze speed fast（Generally 10-1-
100The min orders of magnitude）, without reagent（And its secondary environmental pollution caused by the reagent discharge that may be brought）, device structure it is simple,
The advantages of space enrironment needed for non-maintaining, equipment installation requires relatively low, and equipment construction is invested and cost of equipment maintenance is relatively low.Work
It is using the detected water sample of different types of light source irradiation, then by light absorbs, scattering, hair caused by sample as mechanism
The luminous effect such as penetrate and be converted into data signal, the measurement for obtaining correlation water Testing index in water body is calculated by the mathematical modeling of complexity
Value.The generation and spectral detection for being detected a variety of different type luminous effects of sample can disclose different chemical composition in water sample
Composition and content, it is the key of optical method water quality inspection technique.
Existing optical method water quality detecting device typically uses two methods in the multispectral generation of sample.Method one is logical
Different equipment is crossed to generate different types of sample spectra.The detection device that this mode needs to use is more, causes overall inspection
It is complicated to survey apparatus structure, builds and maintenance cost is very high.Method two is by same equipment, detects water successively different at the time of
The different luminous effect of quality sample, generates different characteristic spectrums.If carrying out water quality detection using this kind of mode, face time-consuming
The problem of long.
The content of the invention
In order to solve the above problems, the present invention provides a kind of multispectral parallel generation device of sample for water analysis.
The invention discloses a kind of multispectral parallel generation device of sample for water analysis, it include transmitter unit,
Test cell and receiving unit.It is characterized in that：The transmitter unit includes light-pulse generator, optical branching device, diffraction grating and light
Grid synchronization deflector, the scanning homogeneous beam of different wave length is produced with adjustable time cycle and duration；The test cell bag
Collimation microscope group, Raman probe, fluorescent probe, sample measuring cell are included, after scanning homogeneous beam is received, via light beam in water body
Optical effect simultaneously generate three kinds of different types of spectrum；The receiving unit includes triple channel spectrometer and embedding assembly
Machine, it is responsible for synchronized transmissions unit, test cell and receiving unit and is sent out with receiving absorption spectrum, raman scattering spectrum and fluorescence parallel
Spectral signal is penetrated, and water analysis data are obtained by algorithm.A kind of sample for water analysis of the present invention is multispectral simultaneously
Row generating means are feature method of the same complete equipment in same time parallel generation three types sample spectra.
Preferably, the light-pulse generator sends the multi-wavelength composite pulse light beam of time regulatable cycle and duration, through photoelectricity
Coupling triggering grating synchronization deflector driving diffraction grating realizes deflection synchronous with pulsed light beam, so as to produce scanning in output end
Monochromatic light light beam.
Preferably, the test cell with placed on orthogonal light path in sample measuring cell three dimensions collimation lens set,
Raman probe and fluorescent probe, synchronously water quality detection sample in sample measuring cell is detected simultaneously with light-pulse generator monochrome optical signal
Caused Raman scattering effect, ultraviolet/visible absorbance effect and Fluorescence effects, and above-mentioned luminous effect will not occur mutually to do
Disturb.
Preferably, the receiving unit is in the synchronously triggering control of transmitter unit photoelectric coupling trigger signal described in claim 2
Under system, water quality detection sample luminous effect that triple channel spectrometer parallel acquisition test cell as described in claim 3 detects, together
Three kinds of different type spectrum of Shi Shengcheng water quality detection samples, i.e. raman scattering spectrum, ultraviolet/visible absorption spectra and fluorescence hair
Spectrum is penetrated, and transmitted in parallel is subsequently calculated to embedded computer.
A kind of multispectral parallel generation device of sample for water analysis of the present invention, it includes transmitter unit, test
Unit and receiving unit, the method can generate three sets of characteristic spectrums, greatly in the case of only set of device in the same time
The big time for reducing water analysis, reduce water analysis cost.
Brief description of the drawings
Fig. 1 is the multispectral parallel generation device first embodiment structural representation for water analysis.
Fig. 2 is the first embodiment quadrature detection light path three-view diagram of test cell three-D space structure.
Embodiment
The embodiment of the present invention is described in further detail below.
A kind of multispectral parallel generation device first embodiment of sample for water analysis of the present invention, it includes transmitting
Unit, test cell and spectrum acquisition unit.After water quality sample starts multispectral detection, the profit of light-pulse generator 1 in transmitter unit
With sparking with impulse form excited white light, spectral region is in 200-1100nm.The pulsed light is produced by photoelectric coupling and touched
Signalling 13, triggering grating synchronization deflector 3 drive diffraction grating 2 to deflect the predetermined angle of diffraction, are coupled to light by optical fiber 11
Shunt 4, the scanning homogeneous beam of different wave length is produced with adjustable time cycle and duration.Single wavelength scanning light beam, which enters, to be surveyed
After trying unit, enter collimation microscope group 5, Raman probe 6 and fluorescent probe 7 simultaneously via the coupling of optical fiber 11 point 3 roads, with it is adjustable when
Between the cycle and duration it is synchronous with light-pulse generator irradiation water sample, make sample while produce light energy absorption, Raman scattering and fluorescence
Launch effect, and receiving unit is output optical signals to by optical fiber 11.Due to collimating microscope group 5, Raman on the three dimensions of measuring cell 8
The quadrature detection light path of probe 6 and fluorescent probe 7 is set, and above-mentioned three kinds of luminous effects will not interfere.In receiving unit
3 channel spectrum instrument, 9 each input receive come self-test unit collimating mirror group 5, Raman probe 6 and fluorescent probe 7 light it is defeated
After entering signal, synchronous generation absorption spectrum, raman scattering spectrum and fluorescence are triggered via the trigger signal 11 from light-pulse generator
Emission spectrum data signal, embedded computer 10 is transferred to by digital signal cable 12 immediately, carried out by model algorithm
Further analysis.
A kind of multispectral parallel generation device of sample for water analysis of the present invention is intended to same set of light path detection and set
Standby upper while three kinds of sample spectras of different nature of generation, for optical method water quality detection.So as to significantly shorten analysis time, subtract
Few equipment cost.
A kind of above example only present invention embodiment therein, its description is more specific and detailed, but can not
Therefore it is interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection model of the present invention
Enclose.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (4)
1. a kind of multispectral parallel generation device of sample for water analysis, it includes transmitter unit, test cell and reception
Unit；It is characterized in that：The transmitter unit includes light-pulse generator, optical branching device, diffraction grating and grating synchronization deflector, with
Adjustable time cycle and duration produce the scanning homogeneous beam of different wave length；The test cell includes collimation microscope group, Raman
Probe, fluorescent probe, sample measuring cell, after scanning homogeneous beam is received, via optical effect of the light beam in water body simultaneously
Generate three kinds of different types of spectrum；The receiving unit includes triple channel spectrometer and embedded computer, is responsible for synchronous hair
Unit, test cell and receiving unit are penetrated to receive absorption spectrum, raman scattering spectrum and fluorescence emission spectrum signal parallel, and
Water analysis data are obtained by algorithm；A kind of multispectral parallel generation device for water analysis of the present invention is same set of
Feature method of the equipment in same time parallel generation three types sample spectra.
2. transmitter unit according to claim 1, it is characterised in that：The light-pulse generator send the time regulatable cycle and when
Long multi-wavelength composite pulse light beam, the driving diffraction grating realization of grating synchronization deflector and pulsed light beam are triggered through photoelectric coupling
Synchronous deflection, so as to produce scanning monochromatic light light beam in output end.
3. test cell according to claim 1, it is characterised in that：The test cell is with sample measuring cell three dimensions
Collimation lens set, Raman probe and the fluorescent probe placed on middle orthogonal light path, it is synchronously same with light-pulse generator monochrome optical signal
When detect sample measuring cell in Raman scattering effect, ultraviolet/visible absorbance effect and fluorescent emission caused by water quality detection sample
Effect, and above-mentioned luminous effect will not interfere.
4. receiving unit according to claim 1, it is characterised in that：The receiving unit is in transmitting described in claim 2
Unit photoelectric coupling trigger signal synchronously under triggering control, as described in claim 3 test single by triple channel spectrometer parallel acquisition
The water quality detection sample luminous effect that member detects, while generate three kinds of different type spectrum of water quality detection sample, i.e. Raman dissipates
Spectrum, ultraviolet/visible absorption spectra and fluorescence emission spectrum are penetrated, and transmitted in parallel is subsequently calculated to embedded computer.
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| CN201710992189.0A CN107631983A (en) | 2017-10-23 | 2017-10-23 | A kind of multispectral parallel generation device of sample for water analysis |
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| CN201710992189.0A CN107631983A (en) | 2017-10-23 | 2017-10-23 | A kind of multispectral parallel generation device of sample for water analysis |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108507955A (en) * | 2018-03-22 | 2018-09-07 | 上海交通大学 | The device and method of multispectral synchronous detection chemical oxygen demand of water body |
| CN108956511A (en) * | 2018-07-16 | 2018-12-07 | 上海交通大学 | Device and method suitable for sanitary sewage ammonia nitrogen on-line checking |
| CN110487686A (en) * | 2019-09-03 | 2019-11-22 | 中国工程物理研究院流体物理研究所 | A kind of multi-modal spectroscopic diagnostics device of air conjugate heat transfer methodology and diagnostic method |
| CN110887814A (en) * | 2019-11-28 | 2020-03-17 | 威海诚悦光电科技有限公司 | Underwater turbidity detection method based on spectral analysis |
| CN112666103A (en) * | 2020-11-26 | 2021-04-16 | 南方科技大学 | Water quality monitoring system based on spectral characteristics |
| CN114166747A (en) * | 2021-11-29 | 2022-03-11 | 浙江大学 | Discrete three-dimensional fluorescence/visible light absorption spectrum detection device for distinguishing water pollution |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108507955A (en) * | 2018-03-22 | 2018-09-07 | 上海交通大学 | The device and method of multispectral synchronous detection chemical oxygen demand of water body |
| CN108956511A (en) * | 2018-07-16 | 2018-12-07 | 上海交通大学 | Device and method suitable for sanitary sewage ammonia nitrogen on-line checking |
| CN110487686A (en) * | 2019-09-03 | 2019-11-22 | 中国工程物理研究院流体物理研究所 | A kind of multi-modal spectroscopic diagnostics device of air conjugate heat transfer methodology and diagnostic method |
| CN110887814A (en) * | 2019-11-28 | 2020-03-17 | 威海诚悦光电科技有限公司 | Underwater turbidity detection method based on spectral analysis |
| CN112666103A (en) * | 2020-11-26 | 2021-04-16 | 南方科技大学 | Water quality monitoring system based on spectral characteristics |
| CN114166747A (en) * | 2021-11-29 | 2022-03-11 | 浙江大学 | Discrete three-dimensional fluorescence/visible light absorption spectrum detection device for distinguishing water pollution |
| CN114166747B (en) * | 2021-11-29 | 2023-12-15 | 浙江大学 | Discrete three-dimensional fluorescence/visible light absorption spectrum detection device for identifying water pollution |
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