CN108426836B - Water monitoring device - Google Patents
Water monitoring device Download PDFInfo
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- CN108426836B CN108426836B CN201810183303.XA CN201810183303A CN108426836B CN 108426836 B CN108426836 B CN 108426836B CN 201810183303 A CN201810183303 A CN 201810183303A CN 108426836 B CN108426836 B CN 108426836B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 238000012806 monitoring device Methods 0.000 title claims abstract description 18
- 238000012360 testing method Methods 0.000 claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 230000003287 optical effect Effects 0.000 claims abstract description 17
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 15
- 239000000428 dust Substances 0.000 claims abstract description 11
- 238000012545 processing Methods 0.000 claims abstract description 8
- 238000010521 absorption reaction Methods 0.000 claims abstract description 7
- 238000005498 polishing Methods 0.000 claims abstract description 6
- 238000004140 cleaning Methods 0.000 claims description 16
- 239000010453 quartz Substances 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000002861 polymer material Substances 0.000 claims description 2
- 239000008400 supply water Substances 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000001658 differential optical absorption spectrophotometry Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 239000012086 standard solution Substances 0.000 description 2
- 238000000862 absorption spectrum Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- 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
- G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
-
- 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
- G01N21/59—Transmissivity
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Optical Measuring Cells (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention relates to a kind of water monitoring devices, including test sensor, processing chip and localized delivery unit, testing sensor includes light source emitter, sample flow cell and light source detector, the optical path arrival end of the sample flow cell and optical path outlet end are respectively arranged with light transmitting sheet, and the light transmitting sheet surface polishing simultaneously plates light transmission hydrophobic film.The present invention by light transmitting sheet surface polishing and add transparent hydrophobic film can make light transmitting sheet have hydrophobicity, reduce the micro-bubble of light transmitting sheet surface attachment, phenomena such as to reduce light refraction, diffusing reflection, the transmitance in ultraviolet-visible optical band can be improved, the surface contact angle of water Yu light transmission hydrophobic film is increased simultaneously, make light transmitting sheet surface be not easy to be flooded profit, the possibility of dust in absorption water is reduced, to improve light transmission etc..
Description
Technical field
The present invention relates to water body detection technique field more particularly to a kind of water monitoring devices.
Background technique
According to the current national conditions in China, requirement of the market to water quality monitoring equipment is mainly: can be compared with making under mal-condition
With easy to maintenance and expense is low；Operation convenient for safeguarding, intelligent, strong antijamming capability；The expansibility of monitoring parameters is strong；Energy
It is enough effectively to play environmental warning monitoring capability.Accordingly, the development trend in China's water quality monitoring instrument future is mainly multiple to improving
Development in terms of miscellaneous site environment adaptability；To high quality, multi-functional, generalization, integrated, automation, systematization and intelligence
The aspect of change develops.Therefore, the monitoring water environment technology based on spectral type sensor is the high-end science and technology currently developed, is
The important trend of water quality monitoring technology and direction.
COD (COD, Chemical Oxygen Demand) is an important indicator of discharge of wastewater, directly anti-
Reflect water quality and environmental situation.09 month 2005, State Environmental Protection Administration promulgated that " ultraviolet (UV) absorbs water quality on-line monitoring instrument
Technical requirements " HJ/T191-2005, standard regulation ultraviolet (UV) absorption water quality automatic on-line analyzer is suitable for sewage quality
Monitoring.The continuous difference absorption spectrum analytical technology of ultraviolet-visible light (UV-visible DOAS, Ultraviolet-visible
Differential Optical Absorption Spectroscopy): application of this technology in water quality monitoring is tool
There is epoch-making meaning, be different from traditional cabinet type chemical method method for analysis of water quality and UV-254 water quality detection method, is not necessarily to additionization
Medicament is learned, testing and analyzing process can complete within the short time (microsecond), provide possibility for water quality real time on-line monitoring.This method
Based on photoelectric conversion technique, water sample to be measured directly passes through sample cell, save the sample in chemical detection method need into
The complicated measurement process such as row pre-treatment, detection module analyze the light of each wavelength through water sample, in available water not
With pollutant species concentration, it is truly realized and raw water " is inserted and surveyed ", convenient and efficient reduction work difficulty.Equipment mostly uses list
Wavelength (254nm) or dual wavelength (removing 254nm, optionally taking 546nm wavelength is reference wavelength), compared with Single wavelength, dual wavelength
The influence Single wavelength of water sample turbidity can be eliminated, the accuracy of test has obtained a degree of raising.Simultaneously using GPRS without
Line transmission technology realizes the real-time directional transmissions of measurement data.
Spectral water quality monitoring device has also been applied to the industries such as environmental protection and chemical industry, but in water conservancy water quality monitoring industry
Using could not but have breakthrough always, other than price, major reason is that water body has diversity, and some Water qualities are very poor,
Dust is larger, after optical component Face Immersion, is easy dust in absorption water, causes turbidity higher, mirror surface is seriously polluted, optics
Test can not be realized effectively.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of water monitoring device, it can be efficiently against the prior art
Present in technical problem.
The technical scheme to solve the above technical problems is that a kind of water monitoring device, including test sensor,
Chip and localized delivery unit are handled, test sensor includes light source emitter, sample flow cell and light source detector, the sample
The optical path arrival end of product flow cell and optical path outlet end are respectively arranged with light transmitting sheet, and the surface polishing of the light transmitting sheet simultaneously plates light transmission
Hydrophobic film.
Further, the light transmitting sheet is quartz plate, and the quartz plate is three-level hierarchic structure.
Further, the sample flow cell is provided with cleaning device, and the cleaning device includes stepper motor, the step
Output end into motor connects transmission shaft, and the transmission axis connection simultaneously drives the removing of cleaning end to be attached on sample flow cell inner wall
Dirt.
Further, the cleaning end is rain shaving blade.
Further, the operating of the stepper motor is by processing chip controls.
Further, the test sensor further includes shell, and the first cavity and second are disposed in the shell
Cavity, in first cavity of light source emitter device, the light source detector device is in the second cavity, the sample flow
Pond is arranged in the shell between the first cavity and the second cavity, and offering on shell can supply water into the logical of sample flow cell
Road.
Further, the localized delivery unit includes GPS module and GPRS module, and GPS module is for providing positioning letter
The electric signal that the detection for testing sensor obtains is sent to remote server by breath, GPRS module.
Further, the shell is made of stainless steel.
For the present invention by light transmitting sheet surface polishing and plating light transmission hydrophobic film, light transmitting sheet can be made by adding transparent hydrophobic film
With hydrophobicity, the micro-bubble of light transmitting sheet surface attachment is reduced, thus phenomena such as reducing light refraction, diffusing reflection, Ke Yiti
Height while increasing the surface contact angle of water Yu light transmission hydrophobic film in the transmitance of ultraviolet-visible optical band, makes light transmitting sheet surface
It is not easy to be flooded profit, the possibility of dust in absorption water is reduced, to improve light transmission etc..
Detailed description of the invention
The structural schematic diagram of water monitoring device in Fig. 1 one embodiment of the invention；
The structural schematic diagram of sensor is tested in Fig. 2 one embodiment of the invention；
Cleaning device structural schematic diagram in Fig. 3 present invention；
Quartz plate structural schematic diagram in Fig. 4 one embodiment of the invention.
Wherein, the piece number in figure indicates are as follows:
1. testing sensor；2. handling chip；3. localized delivery unit；4. remote server；5. light transmitting sheet；6. shell；
11. light source emitter；12. sample flow cell；13. light source detector；31.GPS module；32.GPRS module；61. the first cavity；
62. the second cavity；63. channel；71. stepper motor；72. transmission shaft；73. cleaning end；8. battery.
Specific embodiment
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.Below in conjunction with attached drawing to the principle of the present invention
It is described with feature, it should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application
It can be combined with each other.The given examples are served only to explain the present invention, is not intended to limit the scope of the present invention.
Fig. 1-4 is please referred to, wherein Fig. 1 is a kind of structural schematic diagram of water monitoring device provided by the present invention.
The water monitoring device includes test sensor 1, processing chip 2 and localized delivery unit 3.
Testing sensor 1 includes light source emitter 11, sample flow cell 12 and light source detector 13.Light source emitter 11 mentions
For light required for detecting, sample flow cell 12 accommodates water sample to be tested, and the light that light source emitter 11 emits penetrates sample flow
The water sample to be measured in pond 12 finally enters light source detector 13, and optical signal obtained is converted into electric signal by light source detector 13,
And electric signal is sent to localized delivery unit 3.Localized delivery unit 3 includes GPS module 31 and GPRS module 32, GPS module
31 provide location information；Electric signal is sent to remote server by GPRS module 32；Remote server 4 changes according to electric signal
Become and GPS module 31 provides location information, to judge the change situation of detection ground COD.Processing chip 2 is for coordinating water quality
Monitoring device bulk supply and signal processing；For extended testing system sensor operating time, handles chip 2 and use power management
Mode takes the module point of different function the problem of chip is using electricity-saving mechanism has been fully considered in design in power supply power supply
Mode from power supply can guaranteeing to need to run power supply when module in this way, then power off when without running.In the reality of firmware
In operational process, current operating status can be judged by handling chip intelligent, time sharing power supply, distribution is then taken to power
Supply intelligent power supply mode not only ensure that power saving but also meet the optimized operation of system.
Light transmitting sheet 5, the surface of light transmitting sheet 5 are respectively arranged in the optical path arrival end of sample flow cell 12 and optical path outlet end
It polishes and plates light transmission hydrophobic film.The preferred quartz plate of light transmitting sheet 5.Light that light source emitter 11 issues (including it is ultraviolet light, visible
Light, infrared light) quartz plate can be penetrated, then water sample to be measured is penetrated, quartz plate arrival light is penetrated again through the light of water sample to be measured
Source detector 13, according to the abatement degree analyzing water quality situation of light.
As shown in figure 4, quartz plate is three-level stepped construction, quartz plate, which is designed as three-level hierarchic structure, can increase quartz
The contact area of piece and shell 6 enhances waterproof seal.
Since the water body of water sample detection has diversity, some Water qualities are very poor, and dust is larger, cause turbidity higher,
After optical component Face Immersion, it is easy dust in absorption water, the dust on optical window is adhered to, the transmission path of light can be generated
It influences, so as to cause the generation of measurement error, optic test can not be realized effectively.To solve the above-mentioned problems, the present invention passes through
In the fixed quartz plate in 5 surface of light transmitting sheet, the surface polishing of the quartz plate simultaneously plates light transmission hydrophobic film, and adding transparent hydrophobic film can be with
Make light transmitting sheet that there is hydrophobicity, reduce the micro-bubble of light transmitting sheet surface attachment, so that it is existing to reduce light refraction, diffusing reflection etc.
As the transmitance in ultraviolet-visible optical band can be improved, increase the surface contact angle of water and light transmission hydrophobic film, make light transmission
Piece surface is not easy to be flooded profit, the possibility of dust in absorption water is reduced, to improve light transmission etc..Light transmission hydrophobic film can
To be made by the optical property for changing nano-oxide and polymer material using the methods of doping.
As shown in Fig. 2, for the ease of the test each component of sensor 1 is fixed and is protected, test sensor 1 further includes
Shell 6, shell 6 are disposed with the first cavity 61 and the second cavity 62, in 11 the first cavity of device 61 of light source emitter, light source
13 device of detector is in the second cavity 62；And the shell between the first cavity 61 and the second cavity 62 is arranged in sample flow cell 12
It in body 6, and offers and can be supplied water into the channel of sample flow cell 12 63 on shell 6, which can be setting and exists
The flowing water mouth of 6 depression in the surface of shell.It is preferable to use high-strength stainless steel materials to be made for shell 6, mechanical strength is big, acid and alkali-resistance and
Waterproof performance is high, can work long hours in various tested contaminant waters.
In practical applications, test sensor 1 is placed in water sample, and the time has grown the sundries such as inevitable meeting adhesive dust, special
It is not the sample flow cell 12 for carrying water sample to be measured, the dust of 5 adsorption of light transmitting sheet will have a direct impact on monitoring effect.Cause
This is provided with cleaning device in sample flow cell 12 in a preferred embodiment, as shown in figure 3, cleaning device has
Stepper motor 71, the output end of stepper motor 71 connect transmission shaft 72, and transmission shaft 72 connects and cleaning end 73 is driven to remove attachment
Dirt on 12 inner wall of sample flow cell, especially 5 surface of light transmitting sheet.Cleaning end 73 can be designed as the form of rain shaving blade.
The operating of stepper motor 71 is controlled by processing chip 2, and in the process measured every time, the every flashing of light source is primary, and cleaning end 73 rotates
Once, the foreign matter that may adhere to is cleaned, it is ensured that the cleaning of light transmitting sheet 5 improves the precision of test.
For the ease of using outdoors, the present invention is further typically provided with battery 8, provides electricity for entire water monitoring device
Source.
For the ease of carrying, handling chip 2 and localized delivery unit 3 can become one to form test host, test with
Sensor 1 is tested to connect by optical fiber.When detecting water sample, test sensor 1 immerses in detected water sample, and test host is usually placed in
On the water surface.
Detection effect of the invention is verified below by an example:
BWJ4165-2016 type COD (COD) standard solution of selection 500mg/L (is purchased from national standard substance
The heart) be configured to 0,2,4,6 ... the COD solution of 198,200 (mg/L).
The BWR3013-2016 turbidity standard solution (being purchased from State center for standard matter) of selection 1000NTU is configured to 0,
10,20 ... the turbidity solution of 190,200 (NTU).
Each concentration C OD solution and each concentration turbidity solution mixing fit go out to have the test curve of determining amount.
It obtains standard sample (AZ01-31 type, chemistry institute, Beijing Chinese Academy of Sciences, COD value 25), measurement cavity is immersed into sample
In, by the analysis of 1min, acquired value 24.1.
It obtains standard sample (AZ01-31 type, chemistry institute, Beijing Chinese Academy of Sciences, COD value 25), measurement cavity is immersed into sample
In, by the analysis of 1min, acquired value 25.4.
The error of above-mentioned test can receive in range.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" "inner", "outside", " circumferential direction " is side based on the figure
Position or positional relationship, are merely for convenience of description of the present invention and simplification of the description, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (6)
1. a kind of water monitoring device, which is characterized in that including test sensor, processing chip and localized delivery unit, test
Sensor includes light source emitter, sample flow cell and light source detector, the optical path arrival end and optical path of the sample flow cell
Outlet end is respectively arranged with light transmitting sheet, and the surface polishing of the light transmitting sheet simultaneously plates light transmission hydrophobic film；The light transmission hydrophobic film
Change the optical property of nano-oxide and polymer material using the method for doping and be made, increases water and light transmission hydrophobic film
Surface contact angle, make light transmitting sheet surface be not easy to be flooded profit, reduce absorption water in dust possibility, the light transmitting sheet be stone
English piece, the quartz plate are three-level hierarchic structure, increase the contact area of quartz plate and shell, enhance waterproof seal.
2. water monitoring device according to claim 1, which is characterized in that the sample flow cell is provided with cleaning dress
It sets, the cleaning device includes stepper motor, and the output end of the stepper motor connects transmission shaft, the transmission axis connection and band
The dirt being attached on sample flow cell inner wall is removed at dynamic cleaning end, and the cleaning end is rain shaving blade.
3. water monitoring device according to claim 2, which is characterized in that the operating of the stepper motor is by processing chip
Control.
4. water monitoring device according to claim 1, which is characterized in that the test sensor further includes shell, institute
It states and is disposed with the first cavity and the second cavity in shell, in first cavity of light source emitter device, the light source inspection
Device device is surveyed in the second cavity, the sample flow cell is arranged in the shell between the first cavity and the second cavity, shell
On offer and can supply water into the channel of sample flow cell.
5. water monitoring device according to claim 1, which is characterized in that the localized delivery unit includes GPS module
And GPRS module, GPS module are sent for providing location information, the electric signal that GPRS module obtains the detection for testing sensor
To remote server.
6. water monitoring device according to claim 2, which is characterized in that the shell is made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810183303.XA CN108426836B (en) | 2018-03-06 | 2018-03-06 | Water monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810183303.XA CN108426836B (en) | 2018-03-06 | 2018-03-06 | Water monitoring device |
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| CN108426836A CN108426836A (en) | 2018-08-21 |
| CN108426836B true CN108426836B (en) | 2019-09-13 |
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| CN201810183303.XA Active CN108426836B (en) | 2018-03-06 | 2018-03-06 | Water monitoring device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108872144B (en) * | 2018-09-13 | 2021-02-12 | 中国农业大学 | A on-line monitoring device for anaerobic digestion process |
| CN112304888B (en) * | 2019-07-31 | 2022-11-29 | Tcl科技集团股份有限公司 | Water quality detection method, system and storage medium |
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| CN105229450A (en) * | 2014-02-20 | 2016-01-06 | 罗斯蒙特分析公司 | There is the colorimetric analysis instrument of deaeration function |
| CN105954192A (en) * | 2016-07-20 | 2016-09-21 | 中国科学院烟台海岸带研究所 | Online dual-light-path water environment measurement device based on spectral measurement technology |
| CN106153563A (en) * | 2015-03-16 | 2016-11-23 | 北京中清国研环境技术研究院 | A kind of miniature COD on-line detecting system |
| CN205898684U (en) * | 2016-08-03 | 2017-01-18 | 深圳市七善科技有限公司 | Self -cleaning is fluorescence monitor under water |
| CN206701846U (en) * | 2017-03-07 | 2017-12-05 | 广州绿众水务工程管理有限公司 | A kind of cleaning apparatus for self for online turbidity transducer optical window |
-
2018
- 2018-03-06 CN CN201810183303.XA patent/CN108426836B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105229450A (en) * | 2014-02-20 | 2016-01-06 | 罗斯蒙特分析公司 | There is the colorimetric analysis instrument of deaeration function |
| CN106153563A (en) * | 2015-03-16 | 2016-11-23 | 北京中清国研环境技术研究院 | A kind of miniature COD on-line detecting system |
| CN105954192A (en) * | 2016-07-20 | 2016-09-21 | 中国科学院烟台海岸带研究所 | Online dual-light-path water environment measurement device based on spectral measurement technology |
| CN205898684U (en) * | 2016-08-03 | 2017-01-18 | 深圳市七善科技有限公司 | Self -cleaning is fluorescence monitor under water |
| CN206701846U (en) * | 2017-03-07 | 2017-12-05 | 广州绿众水务工程管理有限公司 | A kind of cleaning apparatus for self for online turbidity transducer optical window |
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| CN108426836A (en) | 2018-08-21 |
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