CN110018123A - A kind of In situ spectroscopic fado parameter water quality monitoring method and device - Google Patents
A kind of In situ spectroscopic fado parameter water quality monitoring method and device Download PDFInfo
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- CN110018123A CN110018123A CN201910407015.2A CN201910407015A CN110018123A CN 110018123 A CN110018123 A CN 110018123A CN 201910407015 A CN201910407015 A CN 201910407015A CN 110018123 A CN110018123 A CN 110018123A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 238000012544 monitoring process Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 19
- 239000013307 optical fiber Substances 0.000 claims abstract description 84
- 230000003287 optical effect Effects 0.000 claims abstract description 81
- 238000001228 spectrum Methods 0.000 claims abstract description 41
- 239000000835 fiber Substances 0.000 claims abstract description 31
- 238000001914 filtration Methods 0.000 claims abstract description 31
- 229910052724 xenon Inorganic materials 0.000 claims abstract description 21
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 18
- 238000002189 fluorescence spectrum Methods 0.000 claims abstract description 7
- 238000012806 monitoring device Methods 0.000 claims description 14
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 6
- 230000005284 excitation Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000009738 saturating Methods 0.000 claims 1
- 238000001917 fluorescence detection Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 5
- 230000003595 spectral effect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 238000002835 absorbance Methods 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 229910052805 deuterium Inorganic materials 0.000 description 1
- -1 deuterium halogen Chemical class 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- 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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
-
- 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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
-
- 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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N2021/1738—Optionally different kinds of measurements; Method being valid for different kinds of measurement
-
- 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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N2021/1738—Optionally different kinds of measurements; Method being valid for different kinds of measurement
- G01N2021/174—Optionally different kinds of measurements; Method being valid for different kinds of measurement either absorption-reflection or emission-fluorescence
-
- 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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N2021/1748—Comparative step being essential in the method
- G01N2021/1751—Constructive features therefore, e.g. using two measurement cells
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/06—Illumination; Optics
- G01N2201/066—Modifiable path; multiple paths in one sample
- G01N2201/0662—Comparing measurements on two or more paths in one sample
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/06—Illumination; Optics
- G01N2201/066—Modifiable path; multiple paths in one sample
- G01N2201/0666—Selectable paths; insertable multiple sources
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/08—Optical fibres; light guides
Abstract
A kind of In situ spectroscopic fado parameter water quality monitoring method and device, by the incident light of xenon source by obtaining transmitted light after test sample, optical fiber is set on the entrance port right opposite of incident light beam strikes test sample, it is transferred to spectrometer further out by the collecting fiber transmitted light, ultraviolet/visible waveband spectrum of transmitted light is obtained by spectrometer；The wave band that the incident light of xenon source is needed to pass through via the selection of light-filtering channels switch, incident light is excited by test sample and generates fluorescence later, optical fiber is equipped in the same side direction of the incidence point of incident light simultaneously, it is transferred to spectrometer further out by the fluorescence that this collecting fiber is excited, fluorescence spectrum is obtained by spectrometer；Z-type optical fiber is further utilized, incident light is divided into two, is divided into the light of two beam same state light intensity half-and-half, reference light paths are set, and be combined into one input path and fluorescence detection optical path, light channel structure is greatly simplified, the accuracy and stability of system monitoring data are improved.
Description
Technical field
The present invention relates to protection of natural resources and environment technical field, especially a kind of In situ spectroscopic fado parameter water quality monitoring method
And device.
Background technique
Water is Source of life, the quality of water resource is able to reflect out to the monitoring of water resource, and ask existing for water resource
Topic, which is made, to be timely feedbacked, to solve the problems, such as that the scheme of water resource quality provides reference frame.
Carrying out spectroscopic methodology monitoring to the parameter of water quality by optical instrument is a kind of novel water quality monitoring technology, without pair
Sample pre-processed, without chemical reagent, measurement period is short, detection speed is fast, equipment cost is low and it is online to realize, in situ
Monitoring and other advantages.
Currently, the water monitoring device of existing spectroscopic methodology is mostly based on the exploitation of single optical principle, such as based on it is ultraviolet/can
The continuous spectrum of wave band is seen using the transmission absorption ratio monitoring water quality parameter of water quality, and working mechanism is to utilize ultraviolet/visible wave
When the continuous spectrum light beam of section irradiates water sample to be measured, monitored water sample generates a variety of different luminous effects because light irradiates, will be different
The spectrum that luminous effect generates, which carries out light splitting by spectrometer, can disclose the composition and content of different chemical composition in water sample, be
The basis of spectroscopic methodology water quality monitoring technology；But most of water monitoring device of existing spectroscopic methodology is based on single optics original
Reason research and development, have a single function, can not obtain multiple-quality water monitoring parameters simultaneously.
In addition, in system light source optical attenuation and because external environment cause photoelectric device generate unstability influence so that prison
The accuracy of survey and the precision of data are easy to be affected, and accuracy is vulnerable to interference.
Chinese invention patent CN101275905A " a kind of multi-source optical spectrum syncretizing portable water quality analysis meter " gives one kind
Using deuterium halogen lamp, implementation method of the laser of multi-wavelength as light source and bispectrometer detector is integrated, to realize simultaneously
Ultraviolet/visible light transmission absorption spectrum and fluorescence spectrum, but its light channel structure is complicated, and installation cost is high, should not realize and push away on a large scale
Wide application, no setting reference light paths, the accuracy of monitoring and the precision of data are by light source in system because using duration to generate
Optical attenuation and because the unstability isobase transience that the boundaries such as temperature environment causes photoelectric device to generate influence it is big therefore above-mentioned
There are limitations for method.
Summary of the invention
The purpose of the present invention is provide a kind of In situ spectroscopic method multi-parameter water quality prison for the technical of original water quality monitoring
Method and device is surveyed, realizes the new of ultravioletvisible absorption monitoring spectrum, reference spectrum and fluorescence spectrum same system asynchronous measurement
Light channel structure provides a kind of structure of new water monitoring device reference light paths.
In order to achieve the above objectives, solution of the invention are as follows: a kind of In situ spectroscopic fado parameter water quality monitoring method,
It is characterized by:
Step 1: by the incident light of xenon source by obtaining transmitted light after test sample, in incident light beam strikes test sample
Entrance port right opposite on optical fiber is set, spectrometer is transferred to by collecting fiber transmitted light further out, passes through spectrometer
Ultraviolet/visible waveband spectrum of transmitted light is obtained, referred to as ultravioletvisible absorption monitors spectrum；
Step 2: the incident light of xenon source is needed into the wave band that passes through via the selection of light-filtering channels switch, later incident light
It is excited by test sample and generates fluorescence, while being equipped with optical fiber in the same side direction of the incidence point of incident light, pass through this optical fiber
It acquires excited fluorescence and is transferred to spectrometer further out, fluorescence spectrum is obtained by spectrometer；
Further, in the step 1, while the incident light of xenon source is shunted into a part, light is directly connected to by optical fiber
Spectrometer obtains ultraviolet/visible waveband spectrum, referred to as reference spectrum of the incident light by spectrometer；Transmission absorption is monitored
The numerical value that spectrum is monitored with reference spectrum compares, and eliminates error, obtains accurate monitoring numerical value.
Further, the transmitted light of the collected sample after testing, the fluorescence of excitation and do not pass through test sample
Incident light the change detection of spectrometer can be all realized by optical path switcher.
Further, in the step 1, the incident light of xenon source enters test sample via light-filtering channels switch, this
When light-filtering channels switch in selection it is free of light filter.
Further, it is according to reality that incident light, which needs the wave band passed through via the selection of light-filtering channels switch, in the step 2
Border needs the corresponding excitation wavelength of fluorescence of parameter monitored to carry out selection.
Further, in the step 1, the incident light of xenon source is switched to pass through detection sample again after parallel input light
Transmitted light is obtained after product, while gained transmitted light being switched to pass further out by collecting fiber again after parallel transmitted light
It is defeated to arrive spectrometer.
A kind of In situ spectroscopic fado parameter water monitoring device, be equipped with xenon source, light-filtering channels switch, sample cell,
Optical path switcher and spectrometer, it is characterised in that: the light-emitting window of the xenon source is connected to light-filtering channels by the first optical fiber
The outlet of switch, light-filtering channels switch is connected to sample cell via the second optical fiber, and the second fiber port is being just in sample cell
Opposite side is equipped with third optical fiber, and third optical fiber is connected to optical path switcher first interface outward；The second optical fiber enters in sample cell
The same lateral position of mouth is equipped with the 4th optical fiber, and the 4th optical fiber is connected to optical path switcher second interface outward；The optical path switcher
Its outlet end is connected to the incidence end of spectrometer by the 5th optical fiber.
Further, the outlet of the light-filtering channels switch is connect with six fibers simultaneously, is connected further to optical path and is cut
The third interface of parallel operation.
Further, second optical fiber, the 4th optical fiber, six fibers are replaced by a Z-type optical fiber, which is integrated
Formula fiber optic component and device, the first optical line of Z-type optical fiber built-in, the second optical line and the third optical line, wherein the second optical line is
The optical fiber of fluorescence can be transmitted, the both ends of third optical line one end with the one end of the first optical line, the second optical line respectively
Portion is integrated as integrated optical fiber portion；Wherein the first optical line and third light of the outlet connection Z-type optical fiber of light-filtering channels switch
The integrated optical fiber portion that towpath is combined into；The integrated optical fiber portion and sample cell that second optical line and third optical line are combined into connect
It connects；The third interface of the other end of first optical line of the Z-type optical fiber and optical path switcher connects, the second optical line it is another
End is connect with the second interface of optical path switcher.
Further, integrated its end of optical fiber portion of the Z-type optical fiber in sample cell is further connected with a fiber optic collimator mirror；
End of the third optical fiber in sample cell is also further connected with a fiber optic collimator mirror.
After adopting the above scheme, the characteristics of monitoring device is using Z-type optical fiber, light-filtering channels switch, optical path switching
By Z-type optical fiber, incident light is divided into two, it is identical to be divided into two beams when water quality monitoring system carries out sample monitoring for device design
The light of state light intensity half-and-half, is arranged reference light paths, and input path and fluorescence detection optical path are combined into one, passes through light-filtering channels
The fluorescence for the specific wavelength that switch detection needs switches monitoring optical path by optical path switcher, compared with prior art, significantly simple
Change light channel structure, improve the accuracy and stability of system monitoring data, finally on the basis of above-mentioned spectrum obtains result, leads to
The relationship calculated between spectrum is crossed, is eliminated the effects of the act, effective spectral signal of specific compound in water sample is obtained and is calculated.
When measuring every time due to water monitoring device, ultravioletvisible absorption monitoring is successively obtained by switching-over light path switch
Spectrum, reference spectrum, because the switching interval time is very short (usually in the millisecond order of magnitude), therefore can be by the light within this interval time
The performance drift increment of the photoelectric devices such as source and photosensitive sensor is considered as zero.By calculating, inhaled from the UV, visible light of water sample to be measured
It takes into custody error after surveying in spectrum the influence for deducting reference spectrum to offset each other, therefore is effectively reduced and eliminates photoelectric device performance
The influence drifted about to effective spectral signal of specific compound in water sample to be measured.
The present invention has not been changed the original photoelectric device type of water monitoring device and spectrum generation mechanism, therefore when realizing
When eliminating the influence of photoelectric device performance drift, the noise of the effective spectral signal of specific compound in water sample to be measured is not changed
Than not changing the effective spectral signal type of specific compound in the water sample to be measured determined by original photoelectric device type, therefore yet
It can be used for the photoelectric device performance drift error concealment of various water monitoring devices.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the outside schematic diagram of Z-type optical fiber of the embodiment of the present invention；
Fig. 3 is the inside schematic illustration of Z-type optical fiber of the embodiment of the present invention；
Fig. 4 is local interior's schematic diagram at the A of Fig. 1 of the present invention.
Specific embodiment
Below in conjunction with drawings and the specific embodiments, the present invention will be described in detail:
A kind of In situ spectroscopic fado parameter water monitoring device, as shown in Figure 1, being equipped with xenon source 1, sample cell 2, optical path switching
Device 3, the first fiber optic collimator mirror 4 and the second fiber optic collimator mirror 5, spectrometer 6, Z-type optical fiber 8, light-filtering channels switch 9；
As shown in Figure 2 and Figure 3, wherein Fig. 3 is the inside schematic illustration of Fig. 2 Z-type optical fiber 8, and the Z-type optical fiber is integral type light
Fine component, the first optical line 81, the second optical line 82 and third optical line 83 built in the Z-type optical fiber 8, wherein the second optical line
82 be the optical fiber that can transmit fluorescence, as seen from Figure 3, the both ends 831,832 of third optical line 83 respectively with the first optical fiber
The one end 811 on road 81, the second optical line 82 one end 822 be integrated as integrated optical fiber portion, as shown in Figure 2 and Figure 3, first
The one end 811 of optical line 81 and the one end 831 of third optical line 83 are combined as a whole optical fiber portion 841；Second optical line 82
One end 822 and the one end 832 of third optical line 83 be combined as a whole optical fiber portion 842；
As Figure 1 and Figure 4, the light-emitting window 11 of the xenon source 1 is connected to light-filtering channels switch 9 by the first optical fiber 71
Entrance 92, the outlet of light-filtering channels switch 9 91 connect with the integrated optical fiber portion 841 of Z-type optical fiber 8 again, the one of Z-type optical fiber 8
Optical fiber portion 842 is connected to sample cell 2 and the port in integrated optical fiber portion 842 is further connected with the second fiber optic collimator mirror 5, Z-type light
The other end 812 of fibre 8 is connect with the third interface 33 of optical path switcher 3, and the other end 821 of Z-type optical fiber 8 is further connected to
3 second interface 32 of optical path switcher.
In sample cell 2, the right opposite of second fiber optic collimator mirror 5 in the integrated optical fiber portion 842 of Z-type optical fiber 8 is equipped with described
First fiber optic collimator mirror 4, the first fiber optic collimator mirror 4 are further connected to the first of optical path switcher 3 by third optical fiber 73 and connect
Mouth 31；Its outlet end 34 of the optical path switcher 3 is connected to the incidence end of spectrometer by the 5th optical fiber 75.
Step 1: when being opened with xenon source 1 of being taken in, incident light transmission to light-filtering channels switch 9, light-filtering channels at this time
Selection channel free of light filter in switch 9, incident light are transferred to optical filter censor key outlet 91 by air, it is ensured that at this time
Incident light do not lost, the outlet 91 of light-filtering channels switch connects the integrated optical fiber portion 841 of Z-type optical fiber 8, and incident light is from the
One optical line 81 and third optical line 83 are transmitted outward, and wherein half incident light is transmitted to sample cell 2 by third optical line 83,
Incident light switchs to parallel input light by the second fiber optic collimator mirror 5 in integrated optical fiber portion 842, and then to the prison in sample cell 2
It surveys water sample to be irradiated, resulting transmitted light receives via the first fiber optic collimator mirror 4 and switchs to parallel transmitted light passes through the later
Three optical fiber are further transferred to optical path switcher 3, are transmitted to spectrometer by optical path switcher 3 and carry out spectrum monitoring, obtain purple
Outer visible absorbance monitors spectrum；The other half incident light is transmitted to the third interface 33 of optical path switcher 3 by the first optical line 81,
Spectrometer is switched to via optical path switcher 3 to be monitored, obtains reference spectrum, and ultravioletvisible absorption is monitored into spectrum and reference
Spectrum carries out corresponding numerical value calculating, eliminates error, obtains accurate monitoring numerical value；
Step 2: the corresponding excitation wavelength of fluorescence selection light-filtering channels switch of the parameter monitored according to actual needs is passable
Wave band, when xenon source 1 is opened, the outlet 91 of incident light transmission to light-filtering channels switch 9, light-filtering channels switch is connected
The integrated optical fiber portion 841 of Z-type optical fiber 8, incident light after waveband selection from the first optical line 81 and third optical line 83 to
Outer transmission, wherein half incident light is transmitted to sample cell 2 by third optical line 83, and then to the test sample in sample cell 2
(detection liquid) is irradiated, and incident light is excited by test sample generates fluorescence, and the reception of the second fiber optic collimator mirror 5 is excited glimmering
Light and the second interface 32 that optical path switcher 3 is further transmitted to by one end 821 of Z-type optical fiber 8, via optical path switcher 3
It switches to spectrometer to be monitored, obtains fluorescence spectrum.
Above monitoring method and monitoring device can all be realized by the host computer of rear end and be automatically controlled, including xenon therein
Lamp source 1, optical path switcher 3, spectrometer 6, light-filtering channels switch 9 etc., to achieve the purpose that monitor automatically；Monitoring process
In ultravioletvisible absorption successively obtained by switching-over light path switch to monitor spectrum, the switching interval time of reference spectrum very short
(usually in the millisecond order of magnitude), therefore the performance of light source and the photoelectric devices such as photosensitive sensor within this interval time can be floated
Shifting is considered as zero, by calculating, from error after the influence for deducting reference spectrum in the ultravioletvisible absorption of water sample to be measured monitoring spectrum
It offsets each other, therefore is effectively reduced and eliminates photoelectric device performance drift to effective spectrum of specific compound in water sample to be measured
The influence of signal.
Mandatory requirement in above step one and step 2 out-of-order can not influence monitoring result with reversed order.
Using this device and method, the fluorescence spectrum for needing to monitor can be both obtained, and then detects one dependent on fluorescence
The parameter of spectrum monitoring, and can rely on ultravioletvisible absorption monitoring spectrum and compared with reference spectrum progress blank monitoring, improve number
According to accuracy；It realizes while the purpose of multinomial monitoring is realized each time with blank, will be supervised in addition, relying on reference spectrum
The precision of the accuracy of survey and data is by light source in system because of the optical attenuation that uses duration to generate and because boundaries' environment such as temperature causes
The influences such as the unstability for generating photoelectric device are reduced at least.
The above description is only an embodiment of the present invention, not to the limitation of this case design, all design key institutes according to this case
The equivalent variations done each falls within the protection scope of this case.
Claims (10)
1. a kind of In situ spectroscopic fado parameter water quality monitoring method, it is characterised in that:
Step 1: by the incident light of xenon source by obtaining transmitted light after test sample, in incident light beam strikes test sample
Entrance port right opposite on optical fiber is set, spectrometer is transferred to by the collecting fiber transmitted light further out, passes through spectrum
Instrument obtains ultraviolet/visible waveband spectrum of transmitted light, and referred to as ultravioletvisible absorption monitors spectrum；
Step 2: the incident light of xenon source is needed into the wave band that passes through via the selection of light-filtering channels switch, later incident light
It is excited by test sample and generates fluorescence, while being equipped with optical fiber in the same side direction of the incidence point of incident light, pass through this optical fiber
It acquires excited fluorescence and is transferred to spectrometer further out, fluorescence spectrum is obtained by spectrometer.
2. a kind of In situ spectroscopic fado parameter water quality monitoring method as described in claim 1, it is characterised in that: in step 1,
The incident light of xenon source is shunted into a part simultaneously, spectrometer is directly connected to by optical fiber, which is obtained by spectrometer
Ultraviolet/visible waveband spectrum, referred to as reference spectrum of light；Ultravioletvisible absorption monitoring spectrum is monitored with reference spectrum
Numerical value compare, eliminate error, obtain accurate monitoring numerical value.
3. a kind of In situ spectroscopic fado parameter water quality monitoring method as claimed in claim 2, it is characterised in that: collected warp
Cross the transmitted light of test sample, the fluorescence of excitation and all can be by optical path switcher come real by the incident light of test sample
The change detection of existing spectrometer.
4. a kind of In situ spectroscopic fado parameter water quality monitoring method as described in claim 1, it is characterised in that: in step 1,
The incident light of xenon source enters test sample via light-filtering channels switch, selects in light-filtering channels switch without optical filtering at this time
Piece.
5. a kind of In situ spectroscopic fado parameter water quality monitoring method as described in claim 1, it is characterised in that: enter in step 2
Penetrating light to need the wave band that passes through via the selection of light-filtering channels switch is that the corresponding excitation of parameter that monitors according to actual needs is glimmering
Optical wavelength carries out selection.
6. a kind of In situ spectroscopic fado parameter water quality monitoring method as described in claim 1, it is characterised in that: in step 1,
The incident light of xenon source is switched to obtain transmitted light later by test sample again after parallel input light, while gained is saturating
Light is penetrated to switch to be transferred to spectrometer further out by collecting fiber again after parallel transmitted light.
7. a kind of In situ spectroscopic fado parameter water monitoring device is equipped with xenon source, light-filtering channels switch, sample cell, light
Road switch, spectrometer, it is characterised in that: the light-emitting window of the xenon source is connected to light-filtering channels by the first optical fiber and switches
The outlet of device, light-filtering channels switch is connected to sample cell via the second optical fiber, the right opposite of the second fiber port in sample cell
Position is equipped with third optical fiber, and third optical fiber is connected to optical path switcher first interface outward；Second fiber entrance in sample cell
Same lateral position is equipped with the 4th optical fiber, and the 4th optical fiber is connected to optical path switcher second interface outward；The optical path switcher its go out
Mouth end is connected to the incidence end of spectrometer by the 5th optical fiber.
8. a kind of In situ spectroscopic fado parameter water monitoring device as claimed in claim 7, it is characterised in that: described filter is led to
The outlet of road switch is connect with six fibers simultaneously, is connected further to the third interface of optical path switcher.
9. a kind of In situ spectroscopic fado parameter water monitoring device as claimed in claim 8, it is characterised in that: second light
Fibre, the 4th optical fiber, six fibers are replaced by a Z-type optical fiber, and the Z-type optical fiber is integral type fiber optic component and device, in the Z-type optical fiber
The first optical line, the second optical line and third optical line are set, wherein the second optical line is the optical fiber that can transmit fluorescence, third optical fiber
The both ends on road are integrated as integrated optical fiber portion with the one end of the one end of the first optical line, the second optical line respectively；Wherein
The integrated optical fiber portion that the first optical line and third optical line of the outlet connection Z-type optical fiber of light-filtering channels switch are combined into；
Second optical line is connect with the integrated optical fiber portion that third optical line is combined into sample cell；First optical fiber of the Z-type optical fiber
The other end on road and the third interface of optical path switcher connect, the other end of the second optical line and the second interface of optical path switcher
Connection.
10. a kind of In situ spectroscopic fado parameter water monitoring device as claimed in claim 9, it is characterised in that: the Z-type light
Integrated its end of optical fiber portion of fibre in sample cell is further connected with a fiber optic collimator mirror；End of the third optical fiber in sample cell
Also further it is connected with a fiber optic collimator mirror.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320175A (en) * | 2019-07-04 | 2019-10-11 | 中南林业科技大学 | A kind of near-infrared spectrum detection device and control method |
| CN111398189A (en) * | 2020-03-23 | 2020-07-10 | 苏州同阳科技发展有限公司 | Multi-modal optical imaging water quality remote sensing detection device and pollution feature extraction method |
| CN111562229A (en) * | 2020-04-10 | 2020-08-21 | 中国科学院西安光学精密机械研究所 | Double-light-path absorption spectrum stability measuring system and method for water quality online monitoring |
| CN111678869A (en) * | 2020-05-29 | 2020-09-18 | 山东省科学院海洋仪器仪表研究所 | Water quality ecological parameter detection device and detection method |
| CN114199795A (en) * | 2021-10-26 | 2022-03-18 | 中国科学院深圳先进技术研究院 | Underwater absorptiometer and water quality detection method |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0516274A2 (en) * | 1991-05-27 | 1992-12-02 | Kowa Co. Ltd. | Multichannel optical measuring system |
| CN101082584A (en) * | 2007-06-28 | 2007-12-05 | 大连海事大学 | Optical fiber biological sensor |
| CN101275905A (en) * | 2008-04-18 | 2008-10-01 | 浙江大学 | Multi-source optical spectrum syncretizing portable water quality analysis meter |
| CN201795862U (en) * | 2010-09-14 | 2011-04-13 | 杭州电子科技大学 | Ultraviolet-visible and fluorescence combined spectrometer |
| CN104062235A (en) * | 2014-07-16 | 2014-09-24 | 北京佰纯润宇生物科技有限公司 | Optical-fiber-based multi-wavelength online detection device of single flow cell |
| CN203894158U (en) * | 2014-06-09 | 2014-10-22 | 江西农业大学 | Quick detection device for content of aspartame in sugar-free coke |
| KR101504042B1 (en) * | 2013-12-05 | 2015-03-18 | (주)동양화학 | Method and apparatus for measuring COD with double beam type |
| CN105866090A (en) * | 2016-06-03 | 2016-08-17 | 苏州百源基因技术有限公司 | Ultraviolet visible light fluorescence detection system |
| CN106353281A (en) * | 2016-09-30 | 2017-01-25 | 中南林业科技大学 | Automatic online near infrared spectrum detecting device and control method |
| CN107179285A (en) * | 2017-05-26 | 2017-09-19 | 北京汇智精仪科技有限公司 | Water quality monitoring probe and method based on ultraviolet-visible absorption spectroscopy and fluorescence spectrum |
| CN207636493U (en) * | 2018-01-04 | 2018-07-20 | 江西农业大学 | The device for fast detecting of benzoic acid content in a kind of biscuit |
| CN209992383U (en) * | 2019-05-16 | 2020-01-24 | 厦门斯坦道科学仪器股份有限公司 | Multi-parameter water quality monitoring device adopting in-situ spectrum method |
-
2019
- 2019-05-16 CN CN201910407015.2A patent/CN110018123A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0516274A2 (en) * | 1991-05-27 | 1992-12-02 | Kowa Co. Ltd. | Multichannel optical measuring system |
| CN101082584A (en) * | 2007-06-28 | 2007-12-05 | 大连海事大学 | Optical fiber biological sensor |
| CN101275905A (en) * | 2008-04-18 | 2008-10-01 | 浙江大学 | Multi-source optical spectrum syncretizing portable water quality analysis meter |
| CN201795862U (en) * | 2010-09-14 | 2011-04-13 | 杭州电子科技大学 | Ultraviolet-visible and fluorescence combined spectrometer |
| KR101504042B1 (en) * | 2013-12-05 | 2015-03-18 | (주)동양화학 | Method and apparatus for measuring COD with double beam type |
| CN203894158U (en) * | 2014-06-09 | 2014-10-22 | 江西农业大学 | Quick detection device for content of aspartame in sugar-free coke |
| CN104062235A (en) * | 2014-07-16 | 2014-09-24 | 北京佰纯润宇生物科技有限公司 | Optical-fiber-based multi-wavelength online detection device of single flow cell |
| CN105866090A (en) * | 2016-06-03 | 2016-08-17 | 苏州百源基因技术有限公司 | Ultraviolet visible light fluorescence detection system |
| CN106353281A (en) * | 2016-09-30 | 2017-01-25 | 中南林业科技大学 | Automatic online near infrared spectrum detecting device and control method |
| CN107179285A (en) * | 2017-05-26 | 2017-09-19 | 北京汇智精仪科技有限公司 | Water quality monitoring probe and method based on ultraviolet-visible absorption spectroscopy and fluorescence spectrum |
| CN207636493U (en) * | 2018-01-04 | 2018-07-20 | 江西农业大学 | The device for fast detecting of benzoic acid content in a kind of biscuit |
| CN209992383U (en) * | 2019-05-16 | 2020-01-24 | 厦门斯坦道科学仪器股份有限公司 | Multi-parameter water quality monitoring device adopting in-situ spectrum method |
Non-Patent Citations (2)
| Title |
|---|
| "复享产品册2014年第2期", pages 102 - 104, Retrieved from the Internet <URL:http://www.ideaoptics.com/Products/Dcontent.aspx?id=9d7211bb-d5f6-43f2-8d8d-5b4d3ed7df71> * |
| 云月厚: "近代物理实验", 上海交通大学出版社, pages: 103 - 236 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320175A (en) * | 2019-07-04 | 2019-10-11 | 中南林业科技大学 | A kind of near-infrared spectrum detection device and control method |
| CN111398189A (en) * | 2020-03-23 | 2020-07-10 | 苏州同阳科技发展有限公司 | Multi-modal optical imaging water quality remote sensing detection device and pollution feature extraction method |
| CN111398189B (en) * | 2020-03-23 | 2023-03-14 | 苏州同阳科技发展有限公司 | Multi-modal optical imaging water quality remote sensing detection device and pollution feature extraction method |
| CN111562229A (en) * | 2020-04-10 | 2020-08-21 | 中国科学院西安光学精密机械研究所 | Double-light-path absorption spectrum stability measuring system and method for water quality online monitoring |
| CN111678869A (en) * | 2020-05-29 | 2020-09-18 | 山东省科学院海洋仪器仪表研究所 | Water quality ecological parameter detection device and detection method |
| CN114199795A (en) * | 2021-10-26 | 2022-03-18 | 中国科学院深圳先进技术研究院 | Underwater absorptiometer and water quality detection method |
| WO2023070838A1 (en) * | 2021-10-26 | 2023-05-04 | 中国科学院深圳先进技术研究院 | Underwater absorbance photometer and water quality detection method |
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