CN107976409A - A kind of new online chromascope and its detection method - Google Patents
A kind of new online chromascope and its detection method Download PDFInfo
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- CN107976409A CN107976409A CN201711179858.9A CN201711179858A CN107976409A CN 107976409 A CN107976409 A CN 107976409A CN 201711179858 A CN201711179858 A CN 201711179858A CN 107976409 A CN107976409 A CN 107976409A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/251—Colorimeters; Construction thereof
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
Abstract
The present invention discloses a kind of new online chromascope, including Photoelectric Detection case and display control case, Photoelectric Detection case includes open-topped babinet, sample inlet is provided with babinet, the bottom of box is provided with sample export, and the first perforate is provided with the side wall of babinet, sensor detecting device is provided with the first perforate, light source emitter is fixed with the inside of babinet or side wall, light source emitter is set with sensor detecting device face；Light source emitter includes transparent light source casing and is arranged at the LED light source of transparent light source inside pipe casing；Sensor detecting device includes clear sensor casing and is arranged at the color sensor of clear sensor inside pipe casing；Display control case includes controller, and LED light source is electrically connected with the controller with color sensor.Using the online chromascope of the present invention, LED light source can be placed directly in sample with color sensor and test without causing short circuit so that the result of test sample is more accurate.
Description
Technical field
The invention belongs to detect technical field of optical detection, and in particular to a kind of new online chromascope and its detection side
Method.
Background technology
With the fast development of society, problem of environmental pollution increasingly aggravates, and the mankind continue to increase its degree of concern, especially
It is the pollution problem to air, water quality, particularly payes attention to.And its pollution level how is accurately detected, also constantly studied as the mankind
A problem.Particularly to the detection of water quality, people use a variety of detecting instruments to realize the purpose of detection water quality.It is usually logical
The colourity for crossing water quality in detection water factory judges water pollution degree.In the prior art, optical colorimetry and laboratory chromascope
It is most common detection method.Optical colorimetry, i.e., with 1 group of liquid color standard test tube, while in addition water sampling is put into equally
Empty test tube, then sample tube and 1 group of liquid color standard test tube are contrasted, obtain a mutually deserved chromatic value.This
Kind comparative approach can obviously produce human error；Although laboratory chromascope solves the problems, such as human error, but signal without
Method teletransmission, in real time can not automatically control production line.Online chromascope is that one kind is measured by irradiating intensity variation
The detecting instrument of solution chromatic value, it includes the color sensor that a light source and one receive light source light and shine, color sensing
The optical signal received is changed into electric signal by device, and is sent to controller, is obtained by data processing in controller and analysis
Solution chromatic value.In the prior art, into the water, otherwise easily the light source and sensor used in online chromascope cannot soak
Can leak electricity short-circuit；Secondly using common incandescent lamp as light source, since its heat production is consumed energy, its service life is short.
The content of the invention
The technical problem to be solved by the invention is to provide a kind of new online chromascope and its detection method, can solve
Certainly light source and sensor cannot be put into water quality and monitor and cause water quality detection precision low and online colourity in the prior art
The short technical problem of instrument service life.
In order to solve the above technical problems, the technical solution adopted by the present invention：A kind of new online chromascope, its feature exist
In：Including Photoelectric Detection case and display control case, wherein,
The Photoelectric Detection case includes open-topped babinet, be provided with babinet described in the box opening sample into
Mouthful, the bottom of babinet is provided with sample export, the first perforate is provided with the side wall of babinet, biography is provided with first perforate
Sensor detection device, is fixed with light source emitter, the light source emitter and institute on the inside of the babinet or side wall
State the setting of sensor detecting device face；
The light source emitter includes transparent light source casing and is arranged at the LED light source of transparent light source inside pipe casing；Institute
Stating sensor detecting device includes clear sensor casing and is arranged at the color sensor of clear sensor inside pipe casing, institute
Clear sensor casing is stated to be fixedly mounted in the first perforate；The color sensor receives the transmitting light of the LED light source；
The display control case includes controller, and the LED light source is electrically connected with color sensor with the controller.
New online chromascope of the present invention makes LED by setting transparent light source casing and clear sensor casing
Light source can be arranged at the bottom of babinet with color sensor, and this design not only ensures that LED light source can with color sensor
It is positioned in sample and tests so that the result of test sample is more accurate, nor the situation of short circuit occurs；Use at the same time
LED light source can extend the service life of online chromascope as transmitting light source, reduce the maintenance cost in later stage；In addition, by case
The top of body sets water inlet, the bottom of box to set water outlet, is always flowing test sample, is not in impurity
Accumulation.
Further, the inside vacuum pumping of the transparent light source casing.It is low that vacuum design is suitable for online chromascope
In the test of room temperature sample.Vacuum design can cause transparent light source to cover pipe die to avoid the gas liquefaction of transparent light source inside pipe casing
Paste, influences illumination, is unfavorable for the progress of test.
Further, the gap filling transparent sealant of the transparent light source casing and the LED light source.Using saturating
Bright sealing material filling can drive away transparent light source inside pipe casing all gas, reach vacuum effectiveness.Compare, adopt with vacuum design
It is low that the method clogged with transparent material operates more easy and cost.
Further, the transparent light source casing and the clear sensor casing are cylindricality casing, the cylindricality
Casing includes cylinder and bottom surface, and the bottom surface is a plane, and basal diameter is more than the column diameter.Using cylindricality casing
And basal diameter is more than the structure of column diameter easy to fixed cylindricality casing, avoids cylindricality casing movement in test process and causes
Accurate testing degree reduces.
Further, the second perforate is provided with the face position of the first perforate on the side wall of the babinet, it is described
Light source emitter is provided with second perforate, the light source emitter is set with the sensor detecting device face.
Further, height of the height less than the babinet for being internally provided with spilling plate, overflowing plate of the babinet, overflows
The babinet is separated to form ejecting plate detection babinet and excessive sample babinet, the excessive sample bottom of box are provided with sample overfall,
The 3rd perforate is provided with the spilling plate at the face position of the first perforate, the 3rd perforate is provided with light source transmitting
Device, the light source emitter are set with the sensor detecting device face.It can ensure test sample using plate is overflowed
More, too fast enable of flow velocity is discharged from overfall, and is unlikely to discharge from casing top.
Further, the controller includes：
Power module, for providing the operating voltage of microprocessor control module and color sensor；
Signal acquisition module, for receiving the signal of color sensor transmission；
Time detecting module, for detecting the switch time of LED light source；
Light source control module, for opening or closing LED light source；
Microprocessor control module, for carrying out processing analysis to received signal in signal acquisition module while for controlling
LED light source processed is opened and closed；
Display module, for the data message for gathering and analyzing in display microprocessor control module；
The power module, signal acquisition module, light source control module, time detecting module and display module with it is described
Microprocessor control module is electrically connected, and the light source control module is electrically connected with the time detecting module.
A kind of detection method of new online chromascope, it is characterised in that：Comprise the following steps：
1) detect sample and babinet is flowed into by the sample inlet of babinet, meet that storing highly of the detection sample in babinet is high
In light source emitter and the height of sensor detecting device is stated, is waited to be detected；
2) display control case is started, display control case internal controller is started to work, and power module supplies electricity to microprocessor control
Molding block and color sensor, microprocessor control module receives work order, and sends instructions to light source control module；Light
Source control module receives work order and starts LED light source unlatching；
3) color sensor receives light signal and is transmitted to signal acquisition module, and signal acquisition module passes light signal
Microprocessor control module is passed, while time detecting module detects the LED light source opening time and is transmitted to microprocessor control
The information analysis of collection is handled, shown finally by display module by module, microprocessor control module；
4) when microprocessor control module detects that the LED light source opening time reaches presetting unlatching value A, microprocessor
Control module sends the instruction that is stopped and is closed to light source control module, light source control module control LED light source；Time detecting mould
Block continues to detect the LED light source shut-in time and is transmitted to microprocessor control module, when microprocessor control module detects LED
When the light source shut-in time reaches presetting close value B, microprocessor control module sends unlatching work order and gives light source control mould
Block, light source control module control LED light source are opened；Wherein, presetting unlatching value A is less than presetting close value B；
5) after detecting, display control case is closed, power module is stopped power supply, and test terminates.
Using test method of the present invention, the service life of LED light source can be extended.Due to presetting for LED light source
Unlatching value is less than default close value, and LED light source can disperse waste heat in the down periods, will not be constantly in opening, can be with
Prolong the service life.
Further, the ratio of the presetting unlatching value A and presetting close value B is 1: 1~50.
Further, the ratio of the presetting unlatching value A and presetting close value B is 1: 30.
Beneficial effects of the present invention：
1) online chromascope of the present invention is used, LED light source can be placed directly in sample with color sensor
Test is without causing short circuit so that the result of test sample is more accurate；
2) air of cylindricality inside pipe casing can be driven away using vacuum mode or transparent sealant filling, suitable for low
In the test of room temperature sample；
3) use intermittently starting or close the test method of LED light source, the service life of light source can be extended.
Brief description of the drawings
Fig. 1 is Photoelectric Detection box structure schematic diagram；
Fig. 2 is Photoelectric Detection case and display control case attachment structure schematic diagram；
Fig. 3 device built-in system circuit connection diagrams in order to control.
Reference numeral in figure, 1- Photoelectric Detection casees, 1.1- babinets, 1.2- sample inlets, 1.3- sample exports, 1.4- first
Perforate, 1.5- overflow plate, the 3rd perforates of 1.5.1-, 1.6- sample overfalls；2- sensor detecting devices, 2.1- clear sensors
Casing, 2.11- clear sensor casing cylinders, 2.12- clear sensor casings bottom surface, 2.2- color sensors；3- light sources are sent out
Injection device, 3.1- transparent light source casings, 3.11- transparent light source casing cylinders, 3.12- transparent light source casings bottom surface, 3.2-LED light
Source；4- transparent sealing glue；5- bolts；6- display control casees；C- detects babinet；D- overflows sample babinet.
Embodiment
The technical solution in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment
Only part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this area
Art personnel all other embodiments obtained without making creative work, belong to the model that the present invention protects
Enclose.
Embodiment 1：
A kind of new online chromascope, as illustrated in fig. 1 and 2, including Photoelectric Detection case 1 and display control case 6, wherein,
Photoelectric Detection case 1 includes open-topped babinet 1.1, be provided with babinet 1.1 opening babinet sample into
Mouth 1.2, the bottom of babinet 1.1 is provided with sample export 1.3, and the first perforate 1.4 is provided with the side wall of babinet 1.1, and first opens
Sensor detecting device 2 is provided with hole 1.4, wherein sensor detecting device 2 includes clear sensor casing 2.1 and sets
Color sensor 2.2 inside clear sensor casing 2.1, clear sensor casing 2.1 are fixedly mounted on the first perforate 1.4
It is interior；Overflowed in order to avoid sample flow rate is too fast from babinet 1.1, overflow plate 1.5 in being internally provided with for babinet 1.1, overflow plate 1.5
Height be less than babinet 1.1 height, overflow plate 1.5 by babinet 1.1 be separated to form detection babinet C and excessive sample babinet D, overflow sample
Babinet D bottoms are provided with sample overfall 1.6, overflow and are provided with the 3rd at the face position of the first perforate 1.4 on plate 1.5
Perforate 1.5.1, the 3rd perforate 1.5.1 is provided with light source emitter 3, and light source emitter 3 and sensor detecting device 2 are just
To setting.Wherein, light source emitter 3 includes transparent light source casing 3.1 and the LED being arranged inside transparent light source casing 3.1
Light source 3.2, and the gap filling transparent sealing glue 4 of transparent light source casing 3.1 and LED light source 3.2, transparent sealing glue 4
Transparent light source casing 3.1 is set to be internally formed vacuum, color sensor 2.2 receives the transmitting light of LED light source 3.2.Need what is illustrated
It is that transparent light source inside pipe casing can also be by the way of vacuumizing, of course for the precision for improving test, clear sensor
Inside pipe casing can also realize inner vacuum using transparent sealing glue or by the way of vacuumizing.Using above-mentioned technical proposal,
In the relatively low fluid sample of measurement temperature, transparent light source inside pipe casing in light source emitter due to vacuum state,
Be not in that internal gas liquefaction generation water mist is attached on the inner wall of light source transparent casing and influences the feelings of LED light source irradiation
Condition, the test condition of this kind of device is wide in range, and measuring accuracy is high.
In the present embodiment, transparent light source casing 3.1 and clear sensor casing 2.1 are cylindricality casing, cylindricality casing
Comprising cylinder 3.11,2.11 and bottom surface 3.12,2.12, bottom surface 3.12,2.12 is a plane, and bottom surface 3.12,2.12 is straight
Footpath is more than the diameter of the cylinder 3.11,2.11.Wherein, the bottom surface of the clear sensor casing on wall box 2.12
Inside babinet 1.1, its cylinder 2.11 is axially extended to babinet 1.1 by the first perforate 1.4, exterior cylinder 2.11
Fixed by bolt 5 and babinet 1.1；Positioned at the bottom surface 3.12 and clear sensor set for overflowing the transparent light source casing on plate 1.5
2.12 face of bottom surface of pipe is set, its cylinder 3.11 is axially extended to excessive sample babinet D by the 3rd perforate 1.5.1, and overflow sample
Cylinder 3.11 in babinet D is fixed by bolt 5 with overflowing plate 1.5.Column diameter is more than using cylindricality casing and basal diameter
Structure be easy to fixed cylindricality casing, avoid in test process cylindricality casing mobile and cause the reduction of accurate testing degree.
Display control case includes controller, as shown in figure 3, controller includes：
Power module, for providing the operating voltage of microprocessor control module and color sensor；
Signal acquisition module, for receiving the signal of color sensor transmission；
Time detecting module, for detecting the switch time of LED light source；
Light source control module, for opening or closing LED light source；
Microprocessor control module, for carrying out processing analysis to received signal in signal acquisition module while for controlling
LED light source processed is opened and closed；
Display module, for the data message for gathering and analyzing in display microprocessor control module；
The power module, signal acquisition module, light source control module, time detecting module and display module with it is described
Microprocessor control module is electrically connected, and the light source control module is electrically connected with the time detecting module.
A kind of detection method of new online chromascope, comprises the following steps：
1) hydrodynamic injection valve is opened, detection sample flows into babinet by the sample inlet of babinet incessantly, and from babinet
The sample export outflow of bottom, will meet that detecting storing highly of the sample in babinet is higher than light source emitter and biography certainly
The height of sensor detection device, is waited to be detected；
2) display control case is started, display control case internal controller is started to work, and power module supplies electricity to microprocessor control
Molding block and color sensor, microprocessor control module receives work order, and sends instructions to light source control module；Light
Source control module receives work order and starts LED light source unlatching；
3) color sensor receives light signal and is transmitted to signal acquisition module, and signal acquisition module passes light signal
Microprocessor control module is passed, while time detecting module detects the LED light source opening time and is transmitted to microprocessor control
The information analysis of collection is handled, shown finally by display module by module, microprocessor control module；
4) when microprocessor control module detects that the LED light source opening time reaches presetting unlatching value 10s, microprocessor
Device control module sends the instruction that is stopped and is closed to light source control module, light source control module control LED light source；Time detecting
Module continues to detect the LED light source shut-in time and is transmitted to microprocessor control module, when microprocessor control module detects
When the LED light source shut-in time reaches presetting close value 300s, microprocessor control module, which is sent, opens work order to light source
Control module, light source control module control LED light source are opened；It should be noted that presetting unlatching value can with presetting close value
To determine according to demand, for example can be setting unlatching value 10s, presetting close value is 10s, 30s, 50s, 70s, 85s,
100s, 200s, 400s etc. or setting unlatching value 10min, presetting close value for 10min, 30min, 50min,
70min, 85min, 100min, 200min, 400min etc., setting unlatching value and the ratio for setting close value are bigger, extend and use
Service life is longer.
5) after detecting, display control case is closed, power module is stopped power supply, and test terminates.
Using test method of the present invention, using the test method of intermittently starting or closing LED light source, Ke Yiyan
The service life of long LED light source.Since the default unlatching value of LED light source is less than default close value, LED light source can be in closed-down period
Between disperse waste heat, opening will not be constantly in, prolonged the service life.
If it should be noted that to realize and remote computer contacts, achieve the purpose that industrialization automatically controls, it is described
A signal output module or communication module are further included in microprocessor control module, wherein signal output module can include
One D/A converter, to realize the conversion between digital signal and analog signal；Communication module includes RS232 serial line interfaces
Either RS485 serial line interfaces realize that controller is believed with remote computer by RS232 serial line interfaces or RS485 serial line interfaces
Breath interaction.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
- A kind of 1. new online chromascope, it is characterised in that：Including Photoelectric Detection case and display control case, wherein,The Photoelectric Detection case includes open-topped babinet, and sample inlet is provided with babinet described in box opening, The bottom of babinet is provided with sample export, and the first perforate is provided with the side wall of babinet, sensing is provided with first perforate Device detection device, is fixed with light source emitter on the inside of the babinet or side wall, the light source emitter with it is described Sensor detecting device face is set；The light source emitter includes transparent light source casing and is arranged at the LED light source of transparent light source inside pipe casing；The biography Sensor detection device includes clear sensor casing and is arranged at the color sensor of clear sensor inside pipe casing, described Bright sensor sleeve is fixedly mounted in the first perforate；The color sensor receives the transmitting light of the LED light source；The display control case includes controller, and the LED light source is electrically connected with color sensor with the controller.
- A kind of 2. new online chromascope according to claim 1, it is characterised in that：Take out the inside of the transparent light source casing For vacuum.
- A kind of 3. new online chromascope according to claim 1, it is characterised in that：The transparent light source casing with it is described The gap filling transparent sealant of LED light source.
- A kind of 4. new online chromascope according to claim 1, it is characterised in that：The transparent light source casing and described Clear sensor casing is cylindricality casing, and the cylindricality casing includes cylinder and bottom surface, and the bottom surface is a plane, and bottom Face diameter is more than the column diameter.
- 5. any one described new online chromascope according to Claims 1 to 4, it is characterised in that：On the side wall of the babinet The second perforate is provided with the face position of the first perforate, light source emitter is provided with second perforate, it is described Light source emitter is set with the sensor detecting device face.
- 6. any one described new online chromascope according to Claims 1 to 4, it is characterised in that：The inside of the babinet is set Be equipped with spilling plate, overflow plate height be less than the babinet height, overflow plate by the babinet be separated to form detection babinet with And excessive sample babinet, the excessive sample bottom of box is provided with sample overfall, described to overflow on plate positioned at the positive contraposition of the first perforate The place of putting is provided with the 3rd perforate, and the 3rd perforate is provided with light source emitter, the light source emitter and the sensing Device detection device face is set.
- A kind of 7. new online chromascope according to claim 1, it is characterised in that：The controller includes：Power module, for providing the operating voltage of microprocessor control module and color sensor；Signal acquisition module, for receiving the signal of color sensor transmission；Time detecting module, for detecting the switch time of LED light source；Light source control module, for opening or closing LED light source；Microprocessor control module, for carrying out processing analysis to received signal in signal acquisition module while for controlling LED light source is opened and closed；Display module, for the data message for gathering and analyzing in display microprocessor control module；The power module, signal acquisition module, light source control module, time detecting module and display module and micro- place Manage device control module to be electrically connected, the light source control module is electrically connected with the time detecting module.
- A kind of 8. detection method of new online chromascope, it is characterised in that：Comprise the following steps：1) detect sample and babinet is flowed into by the sample inlet of babinet, meet that storing highly of the detection sample in babinet is higher than light Source emitter and the height for stating sensor detecting device, are waited to be detected；2) display control case is started, display control case internal controller is started to work, and power module supplies electricity to microprocessor control mould Block and color sensor, microprocessor control module receives work order, and sends instructions to light source control module；Light source control Molding block receives work order and starts LED light source unlatching；3) color sensor receives light signal and is transmitted to signal acquisition module, and signal acquisition module passes to light signal Microprocessor control module, while time detecting module detects the LED light source opening time and is transmitted to microprocessor control module, Microprocessor control module handles the information analysis of collection, is shown finally by display module；4) when microprocessor control module detects that the LED light source opening time reaches presetting unlatching value A, microprocessor control Module sends the instruction that is stopped and is closed to light source control module, light source control module control LED light source；Time detecting module after The continuous detection LED light source shut-in time is simultaneously transmitted to microprocessor control module, when microprocessor control module detects LED light source When shut-in time reaches presetting close value B, microprocessor control module, which is sent, opens work order to light source control module, light Source control module control LED light source is opened；Wherein, presetting unlatching value A is less than presetting close value B；5) after detecting, display control case is closed, power module is stopped power supply, and test terminates.
- A kind of 9. detection method of new online chromascope according to claim 8, it is characterised in that：The presetting unlatching The ratio of value A and presetting close value B is 1: 1~50.
- A kind of 10. detection method of new online chromascope according to claim 9, it is characterised in that：It is described presetting to open The ratio for opening value A and presetting close value B is 1: 30.
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| CN112305236A (en) * | 2019-07-23 | 2021-02-02 | 南方科技大学 | Urine test paper color detection method and test paper |
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