CN106645619A - Real-time in-situ water quality monitor and monitoring method thereof - Google Patents
Real-time in-situ water quality monitor and monitoring method thereof Download PDFInfo
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Abstract
The invention relates to a water quality monitor and a monitoring method thereof and particularly relates to a real-time in-situ water quality monitor and a monitoring method thereof. The real-time in-situ water quality monitor comprises a power supply, and a monitoring probe, an optical fiber spectrometer, an industrial control computer and an air pump which are connected with the power supply, wherein the air pump is provided with a gas pipeline connected with the monitoring probe; the optical fiber spectrometer is provided with a data transmission pipeline connected with the industrial control computer and the monitoring probe respectively; and the monitoring probe comprises a shell body, an open type sample monitoring room, a spectrum sensor, a temperature sensor, a humidity sensor, a transmission cable and a window washing device. The spectrum sensor and the temperature sensor are used for correcting influences on water quality, caused by temperature; and the humidity sensor is used for inducing whether the monitoring probe has a water leakage condition or not and alarming and treating in time. The real-time in-situ water quality monitor provided by the invention adopts a spectrum absorption principle and can be used for monitoring indexes including SAC, TOC (Total Organic Carbon), COD (Chemical Oxygen Demand), BOD (Biochemical Oxygen Demand), No3<->, NO2<->, benzene compounds, turbidity, dissolved oxygen and the like in real time.
Description
Technical field
The present invention relates to a kind of water quality monitor and its monitoring method, more particularly to a kind of real-time in-situ water quality monitor and
Its monitoring method.
Background technology
Water quality monitoring is to monitor and determine the species of pollutant in water body, the concentration of each pollutant and variation tendency, is commented
The process of valency water quality condition.Monitoring range is quite varied, including not being contaminated and contaminated natural water and various
Industrial water drainage etc..Main monitoring project can be divided into two big class：One class be reflect water quality condition overall target, such as temperature, colourity,
Turbidity, pH value, electrical conductivity, suspension, dissolved oxygen, COD and biochemical oxygen demand (BOD) etc.；Another kind of is some noxious materials,
Such as phenol, cyanogen, arsenic, lead, chromium, cadmium, mercury and organic agricultural chemicals.During water quality monitoring, Jing is often made with the spectral absorption of water sample
It is characterized, the Concentration Testing of predetermined substance is carried out to water sample using monitoring probe.In actual use, the complexity of water sample
Property, the sealing of equipment, the cleannes of monitoring window all can affect and interference monitoring result.
The content of the invention
It is an object of the present invention to solve the above problems and a kind of structure reliability is provided, reasonable in design, good airproof performance,
Monitoring result is reliable and stable, a kind of wider water quality monitor of Monitoring Data scope.
Another object of the present invention is to provide a kind of monitoring method carried out using above-mentioned monitor.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of real-time in-situ water quality monitor, including power supply and the monitoring probe, fiber spectrometer, the industry control that are connected with power supply
Machine and air pump, air pump is provided with the gas piping being connected with monitoring probe, and fiber spectrometer is provided with to be visited respectively with industrial computer and monitoring
The connected data transfer pipeline of head；Described monitoring probe includes housing, open sample monitoring room, spectrum sensor, temperature
Sensor, humidity sensor, transmission cable and window cleaning device；Described hull outside closing, shell one end is provided with and number
According to the probe interface that transfer conduit is connected, enclosure interior is provided with cavity, and open sample monitoring room is to be arranged on housing side
Concave port, the top and bottom of open sample monitoring room are respectively provided with an optical transmission window, and the center of two optical transmission windows is same
Axle；The end of probe of described temperature sensor is arranged on the surface of open sample monitoring room, and its other end extend into housing
In cavity；Described humidity sensor and transmission cable is arranged in the cavity of housing, and transmission cable is by spectrum sensor, temperature
Sensor and humidity sensor are connected respectively with probe interface；Described window cleaning device is arranged on housing central section, and window is clear
Cleaning device is connected with gas piping, and the cleaning opening of window cleaning device is towards the saturating of open sample monitoring ceiling portion and bottom
Light window.Spectrum sensor corrects impact of the temperature to water quality together with temperature sensor, and humidity sensor perceives monitoring probe
The situation and alarm of leak is processed.The real-time in-situ water quality monitor of the present invention adopts Spectrum Absorption Principle, can be real
When monitor SAC, TOC, COD, BOD, NO3 -、NO2 -, benzene homologues, the index such as turbidity and dissolved oxygen.
Preferably, described spectrum sensor is separately positioned on open sample monitoring room both sides including light source, two
Lens and lens supports part, light source is arranged in the cavity of housing away from one end of probe interface, and lens are by lens
Support part part is fixed in housing, and lens supports part connects with optical transmission window, light source, lens, lens supports part and light inlet window
Mouth is centrally located on same axis.
Preferably, described housing includes the upper pipe being sequentially connected, visits core and down tube, upper pipe is cylinder, upper pipe
One end is provided with probe interface, another end opening of upper pipe；Down tube is cylinder, and one end closing of down tube, the other end of down tube is opened
Mouthful；The cylinder that core is that middle part is provided with spill mouth is visited, core two ends is visited and is provided with step and screw thread, top tube and down tube are by screw thread and visit
The two ends connection of core.
Preferably, described window cleaning device includes that be arranged on the air cavity for visiting wicking surface visits core inner with being arranged on
Two gas passages, one end of air cavity is connected with gas piping, and the other end of air cavity is connected with two gas passages in angle.
Preferably, the position that described lens supports part connects with optical transmission window is provided with sealing ring.By adopt with
Upper technical scheme, can preferably ensure the sealing popped one's head in.
Preferably, described cavity includes upper cavity and the lower cavity away from probe interface, light source and humidity are passed
Sensor is arranged in lower cavity.By using above technical scheme, being arranged on needing most individually with the light source of water segregation
Cavity, and humidity sensor monitoring and warning cavities seals are set, be conducive to extending the working service time interval of probe.
Preferably, described fiber spectrometer selects spectral region in the fiber spectrometer of 200nm-1200nm.Pass through
Using above technical scheme, the real-time in-situ water quality monitor not only can measure the NO in water body3 -、SAC、TOC、COD、TSS
Suspension, Phenol phenol, Glycol ethylene glycol, absorb and non-absorbing material etc., can also measure ammonia nitrogen, nitrate anion, chlorine from
Son etc..
Preferably, the window cleaning device includes cleaning channels and reverse flow prevention section, described cleaning channels include gas
Chamber and gas passage, one end of air cavity is provided with the recess being connected with outside air feed equipment, and the other end and the gas passage of air cavity connect
Connect, gas passage is the Y-shaped structure of accumbency, the single head section end of gas passage is connected with air cavity, described reverse flow prevention section
It is arranged on the diverging positions of gas passage.
Preferably, described reverse flow prevention section includes the list of block, spring and fixed seat, block and gas passage
Head section is contacted, and one end of fixed seat connects block by spring, and the other end of fixed seat stretches into housing near gas passage pair
The position of head section.
Preferably, described block be spheroid, the second sealing ring that spherome surface is provided around, the second sealing ring with
The sidewall contact of gas passage single head section.By above technical scheme, can preferably prevent the water outside cleaning device from entering clear
Inside clean device.
Preferably, one end that described fixed seat is connected with spring is provided with the bourdon tube that can keep spring position, Gu
The other end of reservation is provided with the screw thread that can be threadedly coupled with spy core.
Preferably, described air cavity and gas passage are circular cylindrical cavity.Circular cylindrical cavity has what is be easily worked
Advantage.
Preferably, external diameter of the single head section external diameter of described gas passage less than air cavity, the external diameter of nozzle is less than gas
The external diameter of the either end of the double end section of passage.By above technical scheme, air cavity, gas pipeline, nozzle are diminishing outer
Footpath can aid in increasing the pressure of the gas to flowing in cleaning device.
Preferably, the double end section end of described gas passage is provided with leads to the nozzle visited outside core.
A kind of real-time in-situ water quality monitoring method, the method is carried out using described real-time in-situ water quality monitor, including
Below step：
1) when measuring first, monitor is started, by monitoring probe immersion pure water, the liquid level for making pure water did not had whole monitoring to visit
Head, the detecting system of fiber spectrometer is returned to zero；
2) by monitoring probe immersion tested water body, the liquid level for making water body did not had whole monitoring probe；
3) booster air pump, cleans to the optical transmission window of monitoring probe；
4) light source is started, monitoring probe carries out signals collecting；
5) according to the signal of monitoring probe feedback, fiber spectrometer shows testing result；
6) terminate flow process, carry out next monitoring, repeat step 2)～step 5).
The invention has the beneficial effects as follows：
The water quality monitoring process of the present invention is carried out in water body in-situ, it is not necessary to carry out pre-treatment, continuous mode is also not required to
Any reagent is consumed, measurable water body parameter is more, with temperature sensor impact of the temperature to water-quality test result is corrected,
The accuracy of test data is good, with the sealing situation inside humidity sensor monitoring and warning probe, using compressed air to saturating
The glass window of light window is rinsed, and the maintenance time interval for monitoring probe is longer much than traditional water quality monitoring equipment, from
And reduce O＆M cost.
Description of the drawings
Fig. 1 is the main structure diagram of the present invention；
Fig. 2 is the monitoring sonde configuration schematic diagram of the present invention；
Fig. 3 is the partial enlarged drawing in A portions in Fig. 2；
Fig. 4 is the main structure diagram of window cleaning device of the present invention；
Fig. 5 is the schematic diagram of window cleaning device working condition of the present invention；
Fig. 6 is the partial enlarged drawing in B portions in Fig. 4；
Fig. 7 is the structural representation of the block of window cleaning device of the present invention；
In figure：1st, power supply, 2, monitoring probe, 3, fiber spectrometer, 4, industrial computer, 5, air pump, 6, gas piping, 7, data
Transfer conduit, 8, upper pipe, 9, visit core, 10, down tube, 11, open sample monitoring room, 12, light source, 13, lens, 14, lens
Support part part, 15, temperature sensor, 16, humidity sensor, 17, transmission cable, 18, air cavity, 19, gas passage, 20, sealing ring,
21st, probe interface.22nd, recess, 23, bourdon tube, the 24, second sealing ring, 25, nozzle, 26, block, 27, spring, 28, fixed
Seat,.
Specific embodiment
Below by specific embodiment, and accompanying drawing is combined, technical scheme is described in further detail.Should
Work as understanding, the enforcement of the present invention is not limited to the following examples, the present invention is done any pro forma flexible and/or
Change falls within the scope of the present invention.
Embodiment 1：
A kind of real-time in-situ water quality monitor as shown in Figure 1, including power supply 1 and the monitoring that is connected with power supply pop one's head in 2, light
Optical fiber spectrograph 3, industrial computer 4 and air pump 5, air pump is provided with the gas piping 6 being connected with monitoring probe, and fiber spectrometer is provided with difference
The data transfer pipeline 7 being connected with industrial computer and monitoring probe, fiber spectrometer is from spectral region 200nm-1200nm's
Fiber spectrometer, not only can so measure the NO in water body3 -, SAC, TOC, COD, TSS suspension, Phenol phenol,
Glycol ethylene glycol, absorption and non-absorbing material etc., can also measure ammonia nitrogen, nitrate anion, chlorion etc..
As shown in Figures 2 and 3, monitoring probe includes that housing, open sample monitoring room 11, spectrum sensor, temperature are passed
Sensor 15, humidity sensor 16, transmission cable 17 and window cleaning device, hull outside closing, enclosure interior is provided with cavity, empty
Chamber includes upper cavity and the lower cavity away from probe interface, and housing includes the upper pipe 8 being sequentially connected, visits core 9 and down tube 10,
Upper pipe is cylinder, and one end of upper pipe is provided with probe interface 21, and probe interface is connected with data transfer pipeline, the other end of upper pipe
Opening；Down tube is cylinder, and one end of down tube is closed, another end opening of down tube；Visit the cylinder that core is that middle part is provided with spill mouth
Body, visits core two ends and is provided with step and screw thread, and top tube and down tube are connected by screw thread with the two ends for visiting core.Open sample monitoring room
To be arranged on the concave port for visiting core side of housing, the top and bottom of open sample monitoring room are respectively provided with a light inlet window
Mouth 22, the central coaxial of two optical transmission windows.Spectrum sensor is separately positioned on open sample monitoring including light source 12, two
The lens 13 and lens supports part 14 of room both sides, light source is arranged in the lower cavity of housing, and lens pass through lens support
Part is fixed in housing, and lens supports part connects with optical transmission window, and the position that lens supports part connects with optical transmission window sets
There is sealing ring 20, light source, lens, lens supports part and optical transmission window are centrally located on same axis.Temperature sensor
End of probe be arranged on the surface of open sample monitoring room, its other end is extend into the cavity of housing.Humidity sensor sets
Put in lower cavity.Transmission cable is arranged in the cavity of housing, and transmission cable is by spectrum sensor, temperature sensor and wet
Degree sensor is connected respectively with probe interface.
Window cleaning device is arranged on housing central section, and the cleaning opening of window cleaning device is towards open sample monitoring room
Top and the optical transmission window of bottom, window cleaning device includes that be arranged on the air cavity 18 for visiting wicking surface visits core inner with being arranged on
Two gas passages 20, one end of air cavity is connected with gas piping, and the other end of air cavity is connected with two gas passages in angle.
The monitoring method of the present invention comprises the following steps：
1) when measuring first, monitor is started, by monitoring probe immersion pure water, the liquid level for making pure water did not had whole monitoring to visit
Head, the detecting system of fiber spectrometer is returned to zero；
2) by monitoring probe immersion tested water body, the liquid level for making water body did not had whole monitoring probe；
3) booster air pump, cleans to the optical transmission window of monitoring probe；
4) light source is started, monitoring probe carries out signals collecting；
5) according to the signal of monitoring probe feedback, fiber spectrometer shows testing result；
6) terminate flow process, carry out next monitoring, repeat step 2)～step 5).
When the real-time in-situ water quality monitor is used, monitoring probe is put into water body to be measured, and monitoring probe carries out signal and adopts
Collection, by the signal that spectrum sensor is obtained fiber spectrometer is fed back to, and is then entered to industrial computer by fiber spectrometer transmission signal
Row is processed and calculated；The signal that temperature sensor is obtained is fed back to industrial computer by monitoring probe, to correct temperature to water-quality test
As a result impact；The signal that humidity sensor is obtained is fed back to industrial computer by monitoring probe, to judge monitoring probe whether leak
Situation and alarm process.
Embodiment 2
A kind of real-time in-situ water quality monitor, with embodiment 1, difference is the window cleaning device to concrete structure
Structure：
As shown in Figure 4 and Figure 6, window cleaning device includes being arranged on the cleaning channels and reverse flow prevention section visited inside core 9,
Cleaning channels include air cavity 18 and gas passage 19, and air cavity and gas passage are circular cylindrical cavity, and air cavity is arranged on spy core 9 end
Portion, one end of air cavity is provided with the recess 22 that can be connected with outside air feed equipment, and the other end of air cavity is connected with gas passage, gas
Body passage is the Y-shaped structure of accumbency, and the single head section end of gas passage is connected with air cavity, and the double end section end of gas passage sets
Have and lead to the nozzle 25 visited outside core；Described reverse flow prevention section is arranged on the diverging positions of gas passage, reverse flow prevention section bag
Block 26, spring 27 and fixed seat 28 are included, block is contacted with the single head section of gas passage, one end of fixed seat passes through spring
Connection block, the other end of fixed seat stretches into spy core near the position of gas passage double end section, and fixed seat is connected with spring
One end is provided with the bourdon tube 23 that can keep spring position, and the other end of fixed seat is provided with what is can be threadedly coupled with spy core
Screw thread.The outside air feed equipment being connected with air cavity recess is high-pressure pump, and the effect of reverse flow prevention section is by outside cleaning device
Water be blocked in outside the air cavity of cleaning device, prevent residual water in air cavity.The single head section external diameter of gas passage is less than air cavity
External diameter, the external diameter of nozzle is less than the external diameter of the either end of the double end section of gas passage.So design purpose be, air cavity, gas
The diminishing external diameter of body pipeline, nozzle can aid in increasing the pressure of the gas to flowing in cleaning device.
As shown in fig. 7, block is spheroid, the second sealing ring 24 that spherome surface is provided around, the second sealing ring and gas
The sidewall contact of body passage single head section, the purpose of so design can be preferably to prevent the water outside cleaning device from entering sanitizer cartridge
Put inside.
As shown in figure 5, window cleaning device is when in use, the single head section that gas passes through air cavity inflow gas passage, in gas
The diverging positions of body passage push open the spheroid block that script is blocked in bifurcation mouth, and gas goes successively to the gas passage for diverging
Double end section, and respectively by nozzle ejection, the underwater probe window of cleaning nozzle correspondence position.
The advantage and characteristic of real-time in-situ water quality monitor of the present invention
1. go out data fast, can instantaneously read data (data about 15 seconds of measurement one), conventional reagents method measurement data is needed
Want 30-60 minutes：
2. up to 99 kinds measurement parameters, using different calibration equations, while calculating.
3 no material consumptions：Probe is non-maintaining design (except the cleaning in special mounting place).The use of internal flash lamp
Life-span>10 years.
4., without the need for reagent consumption, non-secondary pollution does not almost safeguard danger.Conventional wet chemical method equipment is required for using
To reagent, and the reagent used all can have severe contamination to environment, need specific recovery.
5. easy for installation, without hard requirements such as region, site environments；Without the need for instrument shelter, without the need for power supply, base can be saved
Plinth construction cost, floor space is little.
6. data are directly transmitted, without the need for data collecting instrument.
7. whole possessing cost is low, can remotely demarcate, debugs and safeguard.
8. industrial processes monitoring, understands in real time the emergency case of production process.
The measuring principle of real-time in-situ water quality monitor：
Real-time in-situ water quality monitor is the whole scanning of spectrum of UV-VIS (ultraviolet to visible ray), to be measured for each
Species analysis spectral absorption characteristics, software calculates calibration curve automatically.Following experimental data is whole using 200-708nm spectrum
The water quality monitor of the fiber spectrometer of scanning.
Quality Control sample contrastive test data are shown in Table 1.
Table 1
According to《Pollution entering the water on-line monitoring system checking and accepting technology modular (tentative)》Pollution entering the water in (HJ/T354 2007)
The requirement of on-line monitoring instrument Quality Control sample Comparability test acceptance index：The relative error of Quality Control sample is within 10%.
Test result is：Relative error is within 5%.
Environmental Science Institute domestic sewage in rural areas administration project water quality monitoring full pattern contrast test
In July, 2015 and in March, 2016, the real-time original that certain environmental protection science studying and designing institute respectively invents 2 playscripts with stage directions
Position water quality monitor is arranged on the delivery port position that the sanitary sewage artificial swamp in certain village administers demonstration pilot project (50t/d and 20t/d),
It is measurement in real time in situ.
Certain environmental protection science design and research institute carries out reality on 11st in April -2016 years on the 6th April in 2016 to two complete equipments
Sample is compared, and comparison result is shown in Table 2.
The 50t/d COD data of table 2
The (Continued) 50t/d NH of table 23- N data
The (Continued) 50t/d TN data of table 2
The (Continued) 50t/d TP data of table 2
The (Continued) 20t/d COD data of table 2
The (Continued) 20t/d NH of table 23- N data
The (Continued) 20t/d TN data of table 2
The (Continued) 20t/d TP data of table 2
Data analysis conclusion：
Shown according to data above：(Error Absolute Value of each parameter is overlapped and is averaged)
COD average error rates：
NH3- N average error rates：
TN average error rates：
TP average error rates：
According to《Pollution entering the water on-line monitoring system checking and accepting technology modular (tentative)》Pollution entering the water in (HJ/T354 2007)
The requirement of on-line monitoring instrument actual water sample Comparability test acceptance index：
COD relative errors：≤ 30%；
NH3- N relative errors：≤ 15%；
TN relative errors：≤ 15%；
TP relative errors：≤ 15%.
The real-time in-situ water quality monitor of the present invention measures data, is fully achieved the standard and requires, and more accurate, very
Just realizing monitoring water quality on line in time, accurately, efficiently.
Embodiment described above is one kind preferably scheme of the present invention, not makees any pro forma to the present invention
Limit, also have other variants and remodeling on the premise of without departing from the technical scheme described in claim.
Claims (10)
1. a kind of real-time in-situ water quality monitor, it is characterised in that：The real-time in-situ water quality monitor includes power supply and and power supply
Connected monitoring probe, fiber spectrometer, industrial computer and air pump, air pump is provided with and monitors the gas piping that probe is connected, optical fiber
Spectrometer is provided with the data transfer pipeline being connected with industrial computer and monitoring probe respectively；Described monitoring probe includes housing, opens
Put formula sample monitoring room, spectrum sensor, temperature sensor, humidity sensor, transmission cable and window cleaning device；Described
Hull outside is closed, and shell one end is provided with the probe interface being connected with data transfer pipeline, and enclosure interior is provided with cavity, open
Sample monitoring room is the concave port for being arranged on housing side, and the top and bottom of open sample monitoring room are respectively provided with one thoroughly
Light window, the central coaxial of two optical transmission windows；The end of probe of described temperature sensor is arranged on open sample monitoring room
Surface, its other end extend into the cavity of housing；Described humidity sensor and transmission cable is arranged on the cavity of housing
Interior, transmission cable is connected spectrum sensor, temperature sensor and humidity sensor with probe interface respectively；Described window is clear
Cleaning device is arranged on housing central section, and window cleaning device is connected with gas piping, and the cleaning opening direction of window cleaning device is opened
Put the optical transmission window of formula sample monitoring ceiling portion and bottom.
2. a kind of real-time in-situ water quality monitor according to claim 1, it is characterised in that：Described spectrum sensor bag
Light source, two lens and lens supports part for being separately positioned on open sample monitoring room both sides are included, light source is arranged on housing
Cavity in away from probe interface one end, lens are fixed in housing by lens supports part, lens supports part with it is saturating
Light window connects, and light source, lens, lens supports part and optical transmission window are centrally located on same axis.
3. a kind of real-time in-situ water quality monitor according to claim 1 and 2, it is characterised in that：Described housing includes
Upper pipe, spy core and the down tube being sequentially connected, upper pipe is cylinder, and one end of upper pipe is provided with probe interface, and the other end of upper pipe is opened
Mouthful；Down tube is cylinder, and one end of down tube is closed, another end opening of down tube；The cylinder that core is that middle part is provided with spill mouth is visited,
Visit core two ends and be provided with step and screw thread, top tube and down tube are connected by screw thread with the two ends for visiting core.
4. a kind of real-time in-situ water quality monitor according to claim 3, it is characterised in that：Described window cleaning device
Including two gas passages for being arranged on the air cavity air cavity for visiting wicking surface and be arranged on spy core inner, one end of air cavity and flue
Road connects, and the other end of air cavity is connected with two gas passages in angle.
5. a kind of real-time in-situ water quality monitor according to claim 2, it is characterised in that：Described lens supports part
The position connected with optical transmission window is provided with sealing ring.
6. a kind of real-time in-situ water quality monitor according to claim 2, it is characterised in that：Described cavity includes top
Cavity and the lower cavity away from probe interface, light source and humidity sensor are arranged in lower cavity.
7. a kind of real-time in-situ water quality monitor according to claim 1, it is characterised in that：Described fiber spectrometer choosing
With spectral region 200nm-1200nm fiber spectrometer.
8. a kind of real-time in-situ water quality monitor according to claim 1, it is characterised in that：The window cleaning device includes
Cleaning channels and reverse flow prevention section, described cleaning channels include air cavity and gas passage, and one end of air cavity is provided with and outside confession
The recess of gas equipment connection, the other end of air cavity is connected with gas passage, and gas passage is the Y-shaped structure of accumbency, and gas leads to
The single head section end in road is connected with air cavity, and described reverse flow prevention section is arranged on the diverging positions of gas passage.
9. a kind of real-time in-situ water quality monitor according to claim 8, it is characterised in that：Described reverse flow prevention section bag
Block, spring and fixed seat are included, block is contacted with the single head section of gas passage, one end of fixed seat is hindered by spring connection
Chock, the other end of fixed seat stretches into housing near the position of gas passage double end section.
10. a kind of real-time in-situ water quality monitoring method, it is characterised in that the method is using described in claim 1～7 any one
Real-time in-situ water quality monitor, comprise the following steps：
1) when measuring first, monitor is started, by monitoring probe immersion pure water, the liquid level for making pure water did not had whole monitoring probe,
The detecting system of fiber spectrometer is returned to zero；
2）Monitoring probe immersion tested water body, the liquid level for making water body do not had into whole monitoring probe；
3）Booster air pump, cleans to the optical transmission window of monitoring probe；
4）Start light source, monitoring probe carries out signals collecting；
5）According to the signal of monitoring probe feedback, fiber spectrometer shows testing result；
6）Terminate flow process, carry out next monitoring, repeat step 2）～step 5）.
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| CN109142233A (en) * | 2018-08-08 | 2019-01-04 | 安徽汇泽通环境技术有限公司 | A kind of mutation early warning of Drinking Water Source Quality and monitoring system and method |
| CN109443669A (en) * | 2018-09-30 | 2019-03-08 | 深圳市英威腾电源有限公司 | A kind of leakage detection method and device |
| CN113495058A (en) * | 2021-07-31 | 2021-10-12 | 西安永瑞自动化有限公司 | Rare earth extraction online analysis system and analysis method thereof |
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