CN110160978A - A kind of detection system and detection method of the comprehensive organoleptic indicator of drinking water - Google Patents
A kind of detection system and detection method of the comprehensive organoleptic indicator of drinking water Download PDFInfo
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
The present invention provides a kind of comprehensive organoleptic indicator's detection system of drinking water and its monitoring methods, the detection system includes light source module, light guide module, detect whether the transmission projection telecentric imaging module of insoluble pollutant, spectrographic detection module, detect the side scattered light turbidity detecting module of the lateral scattering light intensity of water sample to be measured, acquisition storage transmission module, the directional light that the light source module projects passes through after water sample to be measured, transmission projection telecentric imaging module, light guide module receives transmitted light from the opposite face of light source module, the side for the optical path that side scattered light turbidity detecting module is projected from light source module receives side scattered light, light guide module is connect with spectrographic detection module, spectrographic detection module, side scattered light turbidity detecting module, transmission projection telecentric imaging module is connect with acquisition storage transmission module respectively.Technical solution of the present invention realizes the quick detection to drinking water organoleptic indicator, and inspection is simple and effective, easy to maintain, is easy to layman's utilization.
Description
Technical field
The invention belongs to drinking water on-line computing model technical field more particularly to a kind of comprehensive organoleptic indicators of drinking water
Detection system and detection method.
Background technique
Organoleptic indicator's (such as turbidity, coloration) is that water supply user judges that water quality ensures most directly simplest foundation, therefore drink
With water during supply organoleptic indicator it is up to standard extremely important.It influences organoleptic indicator's key link up to standard and is secondary water-supply
Facility.Because the clean and maintenance of property right reason secondary water-supply facility often cannot get the guidance of profession, property department was being runed
It is difficult to carry out cleaning operation in the suitable time in journey, causes water quality not up to standard, influence the direct feel of drinking water.
Drinking water on-line monitoring instrument is based on the indexs such as turbidity, oxidation-reduction potential, pH currently on the market, and safeguards multiple
It is miscellaneous, expensive, conventional index equipment and installation fee about 200,000；Such as increase chromaticity index, then close to 500,000, secondary water-supply management
Department is difficult to receive.Part instrument needs to add reaction reagent, although instrument measurement is sensitive, stablizes, calibration is convenient, when using
Reagent must be often configured, and more demanding to the preservation of reagent, the pipeline, mechanical part and reagent of periodical inspection instrument
Etc. operating conditions；Operation and maintenance trouble.In addition the monitoring result of conventional on-line monitoring instrument is serving professional's work
When data it is accurate, data volume is big, is conducive to the development of work in every；And it is then difficult to be effectively performed for service for infrastructure personnel
It utilizes, data is caused to waste.
Since infrastructure management company does not have water quality monitoring qualification, it is difficult to quickly and effectively obtain water quality data, cause secondary confession
The clean and maintenance of drainage facility often cannot get the guidance of profession, and property department is difficult to carry out in the suitable time during operation
Cleaning operation causes water quality not up to standard, influences the direct feel of drinking water.
Summary of the invention
Against the above technical problems, the invention discloses the detection systems and detection of a kind of comprehensive organoleptic indicator of drinking water
Method,
In this regard, the technical solution adopted by the present invention are as follows:
A kind of detection system of the comprehensive organoleptic indicator of drinking water, it is characterised in that: it includes light source module, light guide module, inspection
The transmission projection telecentric imaging module for whether having insoluble pollutant, spectrographic detection module, the lateral of detection water sample to be measured is surveyed to dissipate
The side scattered light turbidity detecting module for penetrating light intensity, the acquisition connecting with computer store transmission module,
After the directional light that the light source module projects passes through water sample to be measured, the transmission projection telecentric imaging module, light guide module
Transmitted light is received from the opposite face of light source module, the optical path that the side scattered light turbidity detecting module is projected from light source module
Side receives side scattered light, and the light guide module is connect with spectrographic detection module, the spectrographic detection module, side scattered light
Turbidity detecting module, transmission projection telecentric imaging module connect with acquisition storage transmission module carry out signal transmission respectively；
The light compared in computer comprising the spectrum detected according to spectrographic detection module and soluble pollutants spectra database
Spectrum comparative analysis processing module, the water sample turbidity point analyzed according to the data that side scattered light turbidity detecting module transmits
Analysis processing module, the imaging for whether having insoluble pollutant according to the image information analysis of transmission projection telecentric imaging module transfer
The insoluble pollutant analysis processing module of figure.
It adopts this technical solution, converts optical signal for wanted test index using optical principle, for soluble in water
Contaminant molecule is detected and is analyzed using spectroscopy, and for insoluble particle or microorgranic contaminant, using lateral scattering
Light Turbidity measurement and transmission projection telecentric imaging are analyzed, and the available soluble pollutants of the characterization value of optical signal are passed through
Type and concentration, insoluble matter particle size, the information such as turbidity of water, can directly react the organoleptic indicator of drinking water, detection is quick
It is convenient, it is at low cost.
As a further improvement of the present invention, the light guide module includes optical fiber, and the spectrographic detection module includes expanding
Lens, grating, condenser lens, line array CCD detection are first, and light derived from the optical fiber passes sequentially through extender lens, transmission grating, gathers
It is converged in after focus lens in line array CCD detection member.
As a further improvement of the present invention, the focal length of the extender lens is f1=70-80mm；The transmission grating
Specification is 500-700 line/mm；Focal length f2=160-250mm of the condenser lens.
As a further improvement of the present invention, the focal length of the extender lens is f1=75mm；It is further preferred that described
The specification of transmission grating is 600 lines/mm；It is further preferred that focal length f2=200mm of the condenser lens；Further preferably
, the line array CCD detection member is S11639 linear array CMOS.
As a further improvement of the present invention, the scattering-light turbidity detecting module includes sequentially connected two pole of photoelectricity
Pipe, I/V conversion circuit, high-pass filtering circuit, differential amplifier circuit and bandwidth-limited circuit, the bandwidth-limited circuit and acquisition
Store transmission module electrical connection.
As a further improvement of the present invention, the photodiode is Si PIN photodiode.
As a further improvement of the present invention, the transmission projection telecentric imaging module includes object lens, aperture diaphragm, imaging
The CCD of the imaging of lens and record object, the CCD are electrically connected with acquisition storage transmission module.
As a further improvement of the present invention, the diameter of the imaging hole of the aperture diaphragm is 8-12cm.Further preferably
, the diameter of the imaging hole of the aperture diaphragm is 10cm.
As a further improvement of the present invention, the light source module includes the LED multiband lamp source of sequence setting, filtering
Piece mostly goes out optical fiber group, fiber coupling device into list and collimates microscope group；Each light source of the LED multiband lamp source is located at institute
Each light source entrance mostly into single optical fiber group out is stated, after each light source of the LED multiband lamp source passes through filter plate respectively, by more
It is projected into the outlet of single optical fiber group out, after fiber coupling device, passes through collimation microscope group and project.
Further, the LED multiband lamp source includes red light source, yellow light sources, green light source, blue-light source.
The invention discloses the detection methods of the comprehensive organoleptic indicator of drinking water a kind of, use described in any one as above
The detection system of the comprehensive organoleptic indicator of drinking water detect, comprising the following steps:
The directional light of light source module is irradiated into water sample to be measured, transmitted light is obtained after receiving by light guide module by spectrographic detection module
To the spectrum of water sample to be measured；The spectrum that the spectrum comparative analysis processing module will obtain, compares different pollutants, various concentration
The standard spectrum library of aqueous solution absorption spectrum compare and correlation analysis, obtain the soluble pollutants in water sample to be measured
Classification and concentration；
It is imaged by the transmitted light of water sample to be measured by transmission projection telecentric imaging module, the insoluble pollutant of the imaging figure
Analysis and processing module is analyzed according to image, it is determined whether has insoluble contaminant particle；
Pass through side scattered light turbidity detecting module, the water sample nephelometric analysis processing by the side scattered light of water sample to be measured
The lateral scattering light intensity contrast standard light intensity of obtained water sample is obtained the turbidity of water sample to be measured by module.
As a further improvement of the present invention, the spectrum comparative analysis processing module passes through Nelder-Mead algorithm point
Spectroscopic data, is divided into the combination of basic spectral element, is compared with standard spectrum by the spectrum that solution spectrographic detection module obtains,
Obtain heterogeneity and concentration, i.e., according to the standard spectrum of known concentration, by algorithm obtain detection spectrum and standard spectrum it
Between relationship, and then deduce detection spectrum corresponding to substance concentration.
Compared with prior art, the invention has the benefit that
Quick detection to the organoleptic indicator of drinking water, inspection are realized using spectrum as combination technology using technical solution of the present invention
It is simple and effective to test index, it is easy to maintain, it is easy to layman's utilization；And it can be according to user's required precision and ability to shoulder economically
The online monitoring instruments for developing different series are very suitable for the maintenance management of secondary water-supply facility, solve secondary water-supply facility
Operation management；The monitoring that can also be applied to pump water matter in pumping plant simultaneously, ensures the water quality guarantee in water supply transmission process.
Detailed description of the invention
Fig. 1 is a kind of block diagram of the detection system of the comprehensive organoleptic indicator of drinking water of the present invention.
Fig. 2 is the structural schematic diagram of the spectrographic detection module of an embodiment of the present invention.
Fig. 3 is the mixing spectral analysis result of an embodiment of the present invention.
Fig. 4 is the circuit reduction schematic diagram of the scattering-light turbidity detecting module of an embodiment of the present invention.
Fig. 5 is the schematic diagram of the transmission projection telecentric imaging module of an embodiment of the present invention.
Fig. 6 is the structural schematic diagram of the light source module of an embodiment of the present invention.
Specific embodiment
Preferably embodiment of the invention is described in further detail below.
As shown in Figure 1, a kind of detection system of the comprehensive organoleptic indicator of drinking water comprising light source module, light guide module,
It detects whether the transmission projection telecentric imaging module of insoluble pollutant, spectrographic detection module, detect the lateral of water sample to be measured
The side scattered light turbidity detecting module of scattered light intensity, the acquisition connecting with computer store transmission module,
After the directional light that the light source module projects passes through water sample to be measured, the transmission projection telecentric imaging module, light guide module
Transmitted light is received from the opposite face of light source module, the optical path that the side scattered light turbidity detecting module is projected from light source module
Side receives side scattered light, and the light guide module is connect with spectrographic detection module, the spectrographic detection module, side scattered light
Turbidity detecting module, transmission projection telecentric imaging module connect with acquisition storage transmission module carry out signal transmission respectively；
The light compared in computer comprising the spectrum detected according to spectrographic detection module and soluble pollutants spectra database
Spectrum comparative analysis processing module, the water sample turbidity point analyzed according to the data that side scattered light turbidity detecting module transmits
Analysis processing module, the imaging for whether having insoluble pollutant according to the image information analysis of transmission projection telecentric imaging module transfer
The insoluble pollutant analysis processing module of figure.
Specifically, the light guide module includes optical fiber, as shown in Fig. 2, the spectrographic detection module include extender lens,
Grating, condenser lens, line array CCD detection are first, and light derived from the optical fiber passes sequentially through extender lens, transmission grating, focuses thoroughly
It is converged in after mirror in line array CCD detection member.It is further preferred that the focal length of the extender lens is f1=75mm；The transmitted light
The specification of grid is 600 lines/mm；Focal length f2=200mm of the condenser lens；The line array CCD detection member is S11639 linear array
CMOS.11639 linear array CMOS have 2048 pixels, and Pixel size is 14 × 200 μm, highest spectra collection speed 4k line/
The resolution ratio of s, spectrum demodulation module are less than 0.5nm.Spectral signal light is collected from optical fiber head, through expanding, an incident transmitted light
Grid converge in line array CCD detection member after dispersion through focus lamp.
Before being analyzed, the aqueous solution of different pollution sources, various concentration is prepared, is carried out using the spectrum investigating system wide
Band scanning, obtains different pollution sources, the absorption spectrum peak wavelength of various concentration and intensity, and it is dense to establish different pollution sources, difference
The reference database of degree.It arrives live water sampling again after the completion, different water samples is scanned to obtain spectroscopic data, with standard spectrum
Correlation analysis is carried out, the major class of pollution sources is obtained.
When concrete analysis, based on the water sample spectroscopic data of actual measurement, by using Nelder-Mead algorithm, establish
It is a kind of to reduce the specific wavelength screening technique that pigment not of the same race interferes with each other to the greatest extent in the detection process, spectroscopic data is divided into
The combination of basic spectral element, accurately to measure the concrete content of heterogeneity.
The standard spectrum of single constituents is considered as Gauss spectrum, can indicate aexp {-((x-b)/c) 2 }.In this formula
In, x indicates standard spectrum in the different location point of X-direction, and three parameters (a, b, c) are real constant, are respectively represented
The height of spectrum, longitudinal extinction spectra peak position and width, and obtained mixed spectra can be regarded as these single constituents
The linear combination of standard spectrum.
For the feasibility of verification algorithm, verified by following experiment:
Firstly, the position and width to the initial spike of the standard spectrum of each type of pollution sources measure.
Next, the pollution sources of two kinds of known types are mixed in a certain proportion ,+two kinds of pollution sources of obtained mixed spectra
Standard spectrum mixing, mixed spectra is decomposed by Nelder-Mead algorithm, and the spectrum of decomposition is compared with standard spectrum
Compared with, while the obtained decomposition ratio of comparison algorithm and the fixation mixed proportion before us.If two kinds of ratios being compared
Between relationship be more than preset threshold value, then readjust algorithm in related coefficient, recalculate until theirs
Difference is less than given threshold.After experiments verify that, the feasibility of algorithm is verified.It is just no longer needed in test experience later
Adjustment is re-started to algorithm.
According to the standard spectrum of the mixed spectra of practical mixing sample and every kind of ingredient, spectral resolution is obtained as a result, simultaneously
It can obtain the concrete content of every kind of ingredient.Simple illustration is carried out by taking Fig. 3 as an example, wherein dotted line represents the water sample of acquisition
Mixed spectra, and solid line represents the decomposed spectrum of A kind ingredient, solid line represents the decomposed spectrum of B kind ingredient, and decomposed spectrum is
For the spectrum of heterogeneity, according to the spectral intensity proportionate relationship between decomposed spectrum A and B, so that it may determine that heterogeneity contains
Magnitude relation.
Further, as shown in figure 4, the scattering-light turbidity detecting module includes sequentially connected photodiode, I/V
Conversion circuit, high-pass filtering circuit, differential amplifier circuit and bandwidth-limited circuit, the bandwidth-limited circuit and acquisition storage pass
Defeated module electrical connection.Wherein, I/V conversion circuit, high-pass filtering circuit, differential amplifier circuit and bandwidth-limited circuit are all made of existing
There is the circuit of technology.The photodiode is Si PIN photodiode.
The lateral scattering light intensity of water sample can characterize its turbidity, in order to remove the interference of environment light DC quantity, the present invention
Reverse phase modulation is carried out using the light source of red, purple two different wave lengths, acquires AC-operated light sources signal.The scattering-light turbidity detects mould
Block realizes the transformation of optical signal to electric signal, and is handled first signal using circuit, filters out noise.Entire module master
It will be by four partial functions: photoelectric conversion, high-pass filtering, differential amplification and bandpass filtering.Wherein photoelectric conversion section has two
A process is to convert optical signals to current signal using a photodiode first, and then current signal passes through an electric current
Voltage conversion circuit is changed into voltage signal.Here the photodiode used is Si PIN photodiode, two pole of photoelectricity
Pipe has the characteristics that high-responsivity high speed and low-dark current.Voltage signal first passes around a high-pass filtering circuit removing low frequency and makes an uproar
Acoustical signal especially direct current signal.Above step is all two paths of signals while carrying out that they differ one 180 ° of phase.
Then signal after high-pass filtering passes through the AC signal that differential amplification is needed, finally filter using a bandpass filter
Except noise, into data acquisition module.Final data are input to low-power scm and then are counted with corresponding software
The water sample turbidity information finally needed according to processing.
Further, as shown in figure 5, the transmission projection telecentric imaging module includes object lens, aperture diaphragm, imaging len
It is electrically connected with the CCD of the imaging of record object, the CCD with acquisition storage transmission module.In the present embodiment, the aperture diaphragm
Imaging hole diameter be 10cm.
The diversity in drinking water pollution source determines that its size span is big, and light source module obtains uniform directional light, with saturating
Penetrate sample.Then, the light after sample realizes high-resolution imaging by bilateral telecentric beam path as shown in Figure 5.It is being imaged
Object before and after the focusing surface of system in certain distance, can clearly be imaged.Optical path is adjusted, the picture of object can be regarded as
Object point parallel projection in field depth, with the picture of CCD record object, then the corresponding intensity of each pixel is exactly scape on CCD
The superposition of many object point luminous intensities in deep range.Therefore its depth of field is very big, up to 20 centimetres, is suitble to online pollution entering the water
Big sampling amount monitoring.
Another feature of telecentric imaging optical path is to realize the height of resolution ratio, and in conjunction with the size of light source hot spot, the present embodiment is adopted
The input aperture for being 10cm with diameter, so that the imaging resolution of the structure is to 1 micron.It can be seen that bilateral telecentric beam path can be real
Existing high-resolution imaging, so that reaching whole system can from micron to the pollution sources of millimetre-sized thousands of times of different scale
Blur-free imaging.
As shown in fig. 6, the light source module includes the LED multiband lamp source being sequentially arranged, filter plate, mostly into single optical fiber out
Group, fiber coupling device and collimation microscope group；Each light source of the LED multiband lamp source is located at described mostly into single optical fiber group out
Each light source entrance, after each light source of the LED multiband lamp source passes through filter plate respectively, pass through mostly into it is single go out optical fiber group go out
Mouth projects, and after fiber coupling device, passes through collimation microscope group and projects.Further, the LED multiband lamp source includes red
Light source, yellow light sources, green light source, blue-light source.
The light source module realizes multiband illumination, and is designed by fiber coupling and realize the coupling of multiple groups LED light source.In conjunction with filter
Wave plate film layer technology narrows the spectrum width of LED processing, obtains the illumination light of more pure color, lamp source wave band characteristic spectrum can be richer
Richness can be integrated by infrared to ultraviolet；Coupled system and light balancing device are introduced between optical fiber group and collimation microscope group, is realized
The uniform light combination of high efficiency of multiband LED；By utilizing non-spherical lens, diffractive optical element etc. in chip type selecting and microscope group
Device promotes collecting optical opticas efficiency, and the achromat-design of alternative light source collimation microscope group puts forward higher requirements, want simultaneously
It realizes telecentric beam path design, improves the coupling efficiency and light intensity uniform spatial distribution degree of optical fiber.Further, device can be passed through
The delustrings modes such as blacking blocks, delustring helicitic texture reduce the reflection of the scattering of lens edge light and abnormal incident ray, are promoted
Light intensity uniform spatial distribution degree.The finally obtained LED wideband light source uniformity is up to 99%.
The detection system of the above-mentioned comprehensive organoleptic indicator of drinking water carries out water sample detection using following steps:
The directional light of light source module is irradiated into water sample to be measured, transmitted light is obtained after receiving by light guide module by spectrographic detection module
To the spectrum of water sample to be measured；The spectrum that the spectrum comparative analysis processing module will obtain, compares different pollutants, various concentration
The standard spectrum library of aqueous solution absorption spectrum compare and correlation analysis, obtain the soluble pollutants in water sample to be measured
Classification and concentration；
It is imaged by the transmitted light of water sample to be measured by transmission projection telecentric imaging module, the insoluble pollutant of the imaging figure
Analysis and processing module is analyzed according to image, it is determined whether has insoluble contaminant particle；
Pass through side scattered light turbidity detecting module, the water sample nephelometric analysis processing by the side scattered light of water sample to be measured
The lateral scattering light intensity contrast standard light intensity of obtained water sample is obtained the turbidity of water sample to be measured by module.
Further, the spectrum comparative analysis processing module passes through Nelder-Mead algorithm decomposed spectrum detecting module
Spectroscopic data is divided into the combination of basic spectral element, is compared with standard spectrum by obtained spectrum, obtain heterogeneity and
Concentration can obtain the relationship between detection spectrum and standard spectrum by algorithm, in turn according to the standard spectrum of known concentration
Deduce the concentration of substance corresponding to detection spectrum.
It adopts this technical solution, converts optical signal for wanted test index using optical principle, pass through the table of optical signal
Value indicative can directly react the organoleptic indicator of drinking water, and detection is quick and convenient, at low cost.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (10)
1. a kind of detection system of the comprehensive organoleptic indicator of drinking water, it is characterised in that: it include light source module, light guide module,
It detects whether the transmission projection telecentric imaging module of insoluble pollutant, spectrographic detection module, detect the lateral of water sample to be measured
The side scattered light turbidity detecting module of scattered light intensity, the acquisition connecting with computer store transmission module,
After the directional light that the light source module projects passes through water sample to be measured, the transmission projection telecentric imaging module, light guide module
Transmitted light is received from the opposite face of light source module, the optical path that the side scattered light turbidity detecting module is projected from light source module
Side receives side scattered light, and the light guide module is connect with spectrographic detection module, the spectrographic detection module, side scattered light
Turbidity detecting module, transmission projection telecentric imaging module connect with acquisition storage transmission module carry out signal transmission respectively；
The light compared in computer comprising the spectrum detected according to spectrographic detection module and soluble pollutants spectra database
Spectrum comparative analysis processing module, the water sample turbidity point analyzed according to the data that side scattered light turbidity detecting module transmits
Analysis processing module, the imaging for whether having insoluble pollutant according to the image information analysis of transmission projection telecentric imaging module transfer
The insoluble pollutant analysis processing module of figure.
2. the detection system of the comprehensive organoleptic indicator of drinking water according to claim 1, it is characterised in that: the leaded light mould
Block includes optical fiber, and the spectrographic detection module includes extender lens, grating, condenser lens, line array CCD detection member, the optical fiber
Derived light converges in line array CCD detection member after passing sequentially through extender lens, transmission grating, condenser lens.
3. the detection system of the comprehensive organoleptic indicator of drinking water according to claim 2, it is characterised in that: described to expand
The focal length of mirror is f1=70-80mm；The specification of the transmission grating is 500-700 line/mm；The focal length f2 of the condenser lens=
160-250mm。
4. the detection system of the comprehensive organoleptic indicator of drinking water according to claim 1, it is characterised in that: the scattering light
Turbidity detecting module include sequentially connected photodiode, I/V conversion circuit, high-pass filtering circuit, differential amplifier circuit and
Bandwidth-limited circuit, the bandwidth-limited circuit are electrically connected with acquisition storage transmission module.
5. the detection system of the comprehensive organoleptic indicator of drinking water according to claim 4, it is characterised in that: the photoelectricity two
Pole pipe is Si PIN photodiode.
6. the comprehensive organoleptic indicator's detection system of drinking water according to claim 1, it is characterised in that: the transmission projection
Telecentric imaging module includes the CCD of the imaging of object lens, aperture diaphragm, imaging len and record object, and the CCD and acquisition store
Transmission module electrical connection.
7. the detection system of the comprehensive organoleptic indicator of drinking water according to claim 1, it is characterised in that: the aperture light
The diameter of the imaging hole of door screen is 8-12cm.
8. the detection system of the comprehensive organoleptic indicator of drinking water according to claim 1, it is characterised in that: the light source die
Block includes the LED multiband lamp source of sequence setting, filter plate, mostly goes out optical fiber group, fiber coupling device into list and collimate microscope group；Institute
Each light source for stating LED multiband lamp source is located at each light source entrance for mostly going out optical fiber group into list, the LED multiband lamp
After each light source in source passes through filter plate respectively, by mostly being projected into the outlet of single optical fiber group out, after fiber coupling device, lead to
Cross the injection of collimation microscope group.
9. a kind of detection method of the comprehensive organoleptic indicator of drinking water, it is characterised in that: it is used as claim 1 ~ 8 is any one
The detection system of the comprehensive organoleptic indicator of drinking water described in detects, comprising the following steps:
The directional light of light source module is irradiated into water sample to be measured, transmitted light is obtained after receiving by light guide module by spectrographic detection module
To the spectrum of water sample to be measured；The spectrum that the spectrum comparative analysis processing module will obtain, compares different pollutants, various concentration
The standard spectrum library of aqueous solution absorption spectrum compare and correlation analysis, obtain the soluble pollutants in water sample to be measured
Classification and concentration；
It is imaged by the transmitted light of water sample to be measured by transmission projection telecentric imaging module, the insoluble pollutant of the imaging figure
Analysis and processing module is analyzed according to image, it is determined whether has insoluble contaminant particle；
Pass through side scattered light turbidity detecting module, the water sample nephelometric analysis processing by the side scattered light of water sample to be measured
The lateral scattering light intensity contrast standard light intensity of obtained water sample is obtained the turbidity of water sample to be measured by module.
10. the detection method of the comprehensive organoleptic indicator of drinking water according to claim 9, it is characterised in that: the spectrum
The spectrum that comparative analysis processing module is obtained by Nelder-Mead algorithm decomposed spectrum detecting module, spectroscopic data is divided into
The combination of basic spectral element, is compared with standard spectrum, obtains heterogeneity and concentration.
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| CN112067517A (en) * | 2020-09-11 | 2020-12-11 | 杭州市地下管道开发有限公司 | Intelligent monitoring method, equipment and system for river and lake water body and readable storage medium |
| CN113155781A (en) * | 2021-04-23 | 2021-07-23 | 杭州海康威视数字技术股份有限公司 | Non-contact detection system |
| CN113340835A (en) * | 2021-06-30 | 2021-09-03 | 湖南松井新材料股份有限公司 | Method for detecting quality of photoinitiator and application thereof |
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