CN214844765U - Visual signal water quality testing buoy - Google Patents
Visual signal water quality testing buoy Download PDFInfo
- Publication number
- CN214844765U CN214844765U CN202120560786.8U CN202120560786U CN214844765U CN 214844765 U CN214844765 U CN 214844765U CN 202120560786 U CN202120560786 U CN 202120560786U CN 214844765 U CN214844765 U CN 214844765U
- Authority
- CN
- China
- Prior art keywords
- cavity
- detection
- water quality
- carbon quantum
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model discloses a visual signal water quality testing buoy, include: the water taking module is used for automatically extracting liquid to be detected and conveying the extracted liquid to be detected to the detection module; the detection module comprises a detection cavity and at least one carbon quantum dot cavity for storing liquid carbon quantum dots with preset colors, the detection cavity is used for mixing the liquid to be detected and the liquid carbon quantum dots, and the detection cavity is made of transparent materials; and the lamp source comprises an ultraviolet LED light source and a red LED light source, and light of the lamp source is transmitted through the detection cavity. The utility model discloses a carbon quantum dot has higher detection efficiency as the water quality testing material, and the water quality testing buoy can float on the water for a long time, can implement long-term control to quality of water, and the water quality testing result passes through photochromic demonstration, and the people's eye can follow the distant place and observe easily and learn, but wide application in the water quality testing field.
Description
Technical Field
The utility model relates to a water quality testing field especially relates to a visual signal water quality testing buoy.
Background
With the development of industry, the problem of water pollution is more and more serious, and the water body protection is more and more paid attention by the nation. A plurality of heavy metal ions harmful to human bodies exist in the polluted water body, and the health is seriously harmed after the polluted water body is drunk for a long time. The application of the polluted water body in agriculture and breeding industry causes huge loss, so that the detection of the water quality of the water body is necessary to discover the polluted water body as soon as possible. At present, most conventional procedures for water quality detection are sampling on site and then sending to a laboratory for precision analysis, the time consumption of links such as transportation, detection and the like is too long, the phenomenon of stealing and discharging of lawless persons cannot be avoided, and the detection result cannot be fed back in time.
The carbon quantum is a novel carbon-based fluorescent material, has the advantages of low toxicity, rich raw materials, low cost, good water solubility, biocompatibility and the like, and has been researched in the field of water quality detection at present due to the characteristic of contact quenching on heavy metal ions or other pollutants. The conventional detection method is to mix carbon quantum dots and a detected water body sample, measure spectral data and judge the concentration of heavy metal ions through the spectral attenuation degree, although the detection time is reduced to a certain extent, the real-time performance is still insufficient, and the visual visibility is often lacked.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims at providing a load device and battery detecting system.
The utility model adopts the technical proposal that:
a visual signal water quality detection buoy, comprising:
the water taking module is used for automatically extracting liquid to be detected and conveying the extracted liquid to be detected to the detection module;
the detection module comprises a detection cavity and at least one carbon quantum dot cavity for storing liquid carbon quantum dots with preset colors, the detection cavity is used for mixing the liquid to be detected and the liquid carbon quantum dots, and the detection cavity is made of transparent materials;
and the lamp source comprises an ultraviolet LED light source and a red LED light source, and light of the lamp source is transmitted through the detection cavity.
Further, the water intake module comprises a floating base and a water intake device mounted within the floating base;
the floating base provides buoyancy for the visual signal water quality detection buoy, and the water taking device pumps the liquid to be detected to the detection module through the guide pipe.
Further, the detection module further comprises a shell and a light-transmitting cover, the shell and the light-transmitting cover form a closed container, and the detection cavity and the carbon quantum dot cavity are arranged in the closed container;
the water body cavity is used for storing liquid to be detected, the waste liquid cavity is used for storing liquid mixed in the detection cavity, and the micro solar cell panel provides power for the water taking module and the lamp source.
Further, an inner support is arranged on the inner wall of the shell and used for fixing the detection cavity, the inner support and the detection cavity form a platform, the platform divides the closed container into a first closed container and a second closed container, and the first closed container is clamped between the light-transmitting cover and the platform;
the water body cavity, the carbon quantum dot cavity and the micro solar cell panel are arranged in the first closed container;
the waste liquid cavity and the light source are arranged in the second closed container.
Further, the shell, the water cavity, the carbon quantum dot cavity and the waste liquid cavity are made of opaque materials.
Further, the water body cavity is connected with the detection cavity through a first conduit, the carbon quantum dot cavity is connected with the detection cavity through a second conduit, and the detection cavity is connected with the waste liquid cavity through a third conduit;
directional valves are arranged in the first guide pipe, the second guide pipe and the third guide pipe and are used for controlling liquid to flow in a one-way mode.
Furthermore, a groove is formed in the detection cavity, so that the liquid to be detected and the liquid carbon quantum dots are fully mixed.
Furthermore, the detection cavity is divided into n regions by a light-tight baffle, n carbon quantum dot cavities are arranged in the detection module, and each carbon quantum dot cavity corresponds to one region of the detection cavity.
Furthermore, the central axis of the ultraviolet LED light source and the central axis of the red LED light source point to the detection cavity, and the included angle between the two central axes is 60-120 degrees.
Further, the floating base comprises an inner cavity and a through hole, and the water taking device is arranged in the inner cavity and extracts and detects liquid through the through hole.
The utility model has the advantages that: the utility model discloses a carbon quantum dot has higher detection efficiency as the water quality testing material, and the water quality testing buoy can float on the water for a long time, can implement long-term control to quality of water, and the quality of water testing result passes through photochromic demonstration, and the people's eye can follow the distant place and observe easily and learn.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a water quality detecting buoy with a visual signal according to an embodiment of the present invention;
fig. 2 is an exploded view of a water quality detecting buoy with a visual signal according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the water quality standard reaching result display of the water quality detection buoy according to the embodiment of the present invention;
FIG. 4 is a schematic diagram of the water quality substandard result display of the water quality detection buoy according to the embodiment of the present invention;
fig. 5 is a schematic diagram of a patterned trench of a detection chamber according to an embodiment of the present invention.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
As shown in fig. 1 and 2, the present embodiment provides a visual signal water quality detection buoy, including: the device comprises a micro solar cell panel 1, a shell 2, a shell inner support 2-1, a carbon quantum dot cavity 3, a detection cavity 4, an ultraviolet LED light source 5, a floating base 6, a water taking device 7, a waste liquid cavity 8, a red light LED light source 9, a catheter 10, a water cavity 11 and a light-transmitting cover 12.
The shell 2 is tightly combined with the light-transmitting cover 12 to form a closed container; detect chamber 4 and pass through shell inner support 2-1 supports and sets up inside the container, and carbon quantum dot chamber 3, waste liquid chamber 8 and water cavity 11 pass through pipe 10 with detect chamber 4 and connect, water intake device 7 arranges in float 6 inner chambers of base, and with water cavity 11 passes through the shell 2 is connected with the trompil of floating base 6. The ultraviolet LED light source 5 and the red LED light source 9 are arranged on the terraces on two sides of the detection cavity 4. The miniature solar cell panel 1 is arranged on the lower surface of the light-transmitting cover.
The visual signal water quality detection buoy has the working principle that: the red light LED and the ultraviolet LED emit light, and light rays firstly pass through the mixed liquid of the carbon quantum dots and the water body sample and then are emitted to the environment. The carbon quantum dots are influenced by heavy metal ions or pollutants in a water body sample to generate fluorescence quenching at different degrees. The red LED can not excite the carbon quantum dots and emits original red light; the ultraviolet LED excites the carbon quantum dots to generate blue light, and the intensity of the blue light is weakened as the quenching degree of the fluorescence of the carbon quantum dots is increased. When heavy metal elements in the water exceed the standard, the carbon quantum dots are subjected to severe fluorescence quenching, and red light mixed by red light and ultraviolet light is observed by human eyes; when the water quality reaches the standard, the ultraviolet LED excites the carbon quantum dots to emit blue light, and white light combining the blue light and the red light is displayed. When the heavy metal elements are transited from non-standard to standard, the color coordinates of the emitted light are transited from (0.3319, 0.3057, 0.2903) to (0.6824, 0.3157, 0). The white light is warm in vision and finally becomes red light, so that the white light is easy to observe and recognize.
Further alternatively, the detection chamber 4 and the transparent cover 12 are made of transparent materials, such as glass, acrylic Plastic (PMMA), Polystyrene (PS), polyvinyl chloride (PVC) Polycarbonate (PC), etc., preferably Polystyrene (PS).
Further as an alternative embodiment, the housing 2, the carbon quantum dot chamber 3, the waste liquid chamber 8, the catheter 10 and the water body chamber 11 are made of opaque materials, such as metals like iron and aluminum or colored rubber or plastics like Thermoplastic Polyurethane (TPU), preferably Thermoplastic Polyurethane (TPU).
Further as an alternative embodiment, the catheter 10 is provided with a directional valve to control the one-way flow of liquid.
Further as an alternative embodiment, the floating base material is a buoyant material such as foam, foam glass, foam aluminum, and the like, preferably foam aluminum.
Further as an alternative embodiment, the detection cavity 4 may be a cavity or a patterned trench, and the thickness of the inner wall is preferably, but not limited to, 0.5-2 mm.
Further as an optional implementation mode, the central axis of the ultraviolet LED light source 5 and the central axis of the red LED light source 9 face the detection cavity 4, and the included angle of the light sources is 60 degrees to 120 degrees, preferably 60 degrees; the wavelength of the ultraviolet LED light source is 200-365nm, preferably 365nm, and the wavelength of the red LED light source is 610-650nm, preferably 630 nm.
Further as an optional implementation mode, the carbon quantum dot cavity 3 stores blue liquid carbon quantum dots, the excitation wavelength is below 440nm, and the emission wavelength is 440-455 nm.
Example one
As shown in fig. 1 and 2, the present embodiment provides a visual signal water quality detection buoy, including: the shell 2 and the light-transmitting cover 12 are tightly combined to form a closed container; a detection cavity 4 fixed in the container, a carbon quantum dot cavity 3 connected with the detection cavity 4 through a conduit 10, a water body cavity 11 and a waste liquid cavity 8; a floating base 6 assembled at the lower end of the shell 2, and a water taking device 7 arranged in the floating base and connected with a water body cavity 11 through a conduit 10; a red LED light source 5 and an ultraviolet LED light source 9 which are arranged at two sides of the detection cavity 4; and the micro solar cell panel 1 is arranged on the lower surface of the light-transmitting cover and is electrically connected with the red light LED light source 5, the ultraviolet LED light source 9 and the water taking device 7.
In the visual signal water quality detection buoy, the diameter of the shell is 100mm, and the height is 120 mm; the size of the detection cavity is 50 multiplied by 1mm3The thickness of the inner wall is 0.5 mm; the size of the carbon quantum dot cavity and the water body cavity is 50 multiplied by 50mm3(ii) a Said wasteThe size of the liquid cavity is 100 multiplied by 50mm3。
The wavelength of the ultraviolet LED light source is 365nm, the power of the ultraviolet LED light source is 3W, the wavelength of the red LED light source is 630nm, and the power of the red LED light source is 3W.
The material of the detection cavity and the light-transmitting cover is transparent Polystyrene (PS).
The shell, the carbon quantum dot cavity, the waste liquid cavity, the catheter and the water cavity are made of opaque Thermoplastic Polyurethane (TPU).
Waterproof rubber is filled between the contact surfaces of the shell and the light-transmitting cover, so that the sealing property is ensured.
The inner diameter of the conduit is 3mm, and the conduit is provided with a directional valve for controlling liquid to flow to the detection cavity only from the carbon quantum dot cavity and the water body cavity; the mixed liquid can only flow from the detection chamber to the waste chamber.
The heights of the carbon quantum cavity and the water body cavity are higher than that of the detection cavity, and the distance between the lower surfaces of the carbon quantum cavity and the water body cavity and the upper surface of the detection cavity is 15 mm; the height of the detection cavity is higher than that of the waste liquid cavity, and the distance between the lower surface of the detection cavity and the upper surface of the waste liquid cavity is 20 mm. The liquid circulates by itself under the action of gravity.
The material of the floating base is foamed aluminum.
The blue liquid carbon quantum dots are stored in the carbon quantum cavities, and when the blue liquid carbon quantum dots are contacted with mercury ions with the concentration of 40 mu M, the fluorescence intensity is reduced to 50 percent of the original intensity within 6 min.
The micro solar cell panel supplies power to the buoy electrical element.
In the embodiment, the carbon quantum dots are used as the water quality detection probes, and the water quality detection probes have the characteristics of no toxicity, no harm, environmental friendliness, high biocompatibility, rich raw materials, low cost and the like. The carbon quantum is a fluorescent material, and the specific carbon quantum is subjected to fluorescence quenching when being contacted with specific heavy metal ions or pollutants, so that the detection of a certain pollutant in the water body is realized by utilizing the characteristic. In the embodiment, the blue carbon quantum dots only have a fluorescence quenching effect on mercury ions, so that whether the mercury ions in the water body exceed the standard or not can be directionally detected.
In this embodiment, the principle of displaying the water quality detection result is shown in fig. 3 and 4, and the blue carbon quantum dots can be excited by ultraviolet light but not by red light, so that the buoy emits red light at all times. When the mercury ions in the water body exceed the standard, the blue carbon quantum dots are quenched, ultraviolet light is directly emitted, and red light is observed by human eyes; when the water quality reaches the standard, the ultraviolet light excites the blue carbon quantum dots to radiate blue light, and the human eyes observe white light formed by mixing the blue light and the red light. The red light and the white light emitted by the water quality detection buoy have the illuminance of over 1000lux and can be easily identified outdoors.
In this embodiment, the water quality detection buoy floats in the detected water area for a long time, the micro solar cell panel continuously supplies power to detect the water area in real time, and the detection result is displayed in real time through the light color emitted by the buoy, so that the water quality detection buoy has the advantages of environmental friendliness, real-time performance, long-term performance and visibility.
Example two
This embodiment is substantially the same as the first embodiment, except that the detection chamber 4 is grooved instead of a cavity.
In order to ensure that the water body sample and the carbon quantum dots are uniformly mixed, a patterned groove is engraved in the detection cavity to control the liquid to flow to the auxiliary liquid for mixing.
This embodiment provides a patterned slot detection chamber, not representing the only solution of the present invention. As shown in fig. 5, a circular liquid mixing cavity and a liquid containing cavity are formed in the detection cavity, a water body sample and blue liquid carbon quantum dots flow into the detection cavity from opposite corners of the detection cavity, firstly pass through the liquid mixing cavity, and flow into the liquid containing cavity after the two liquids are fully mixed, so that the detection cavity is full of the detection liquid which is uniformly mixed.
EXAMPLE III
This embodiment is substantially the same as the first embodiment, except that a plurality of detection chambers are provided in the float, and the detection chambers are separated by opaque baffles.
The present embodiment provides a multi-pollutant detection scheme, which is characterized in that two or more detection cavities are present in a float, different types of carbon quantum dots are present in different cavities, quenching is only performed on specific heavy metal ions or pollutants, and colors of excited radiation light of the carbon quantum dots are different.
In this embodiment, blue carbon quantum dots sensitive to mercury ions and green carbon quantum dots sensitive to ferric ions are stored in two regions of the water quality detection buoy, and when the two heavy metal ions exceed the standard, the buoy displays red light; when only mercury ions exceed the standard, one area displays red light, and the other area displays yellow light formed by mixing the red light and green light; when only ferric ions exceed the standard, one area displays white light, and the other area displays red light; when the water quality is qualified, one area displays white light, and the other area displays yellow light.
The working process of the quality detection buoy mainly comprises the following steps:
s1: the water taking device 7 is powered by the micro solar cell panel 1, and water samples are taken from a detected water area through the through hole of the floating base 6 in a timing and quantitative mode and transported to the water cavity 11 through the conduit 10 to be stored.
S2: the water body sample stored in the water body cavity 11 and the carbon quantum dots in the carbon quantum dot cavity 3 flow into the detection cavity 4 under the action of gravity to be mixed.
S3: the ultraviolet LED light source 5 and the red LED light source 9 are arranged on two sides of the detection cavity 4 and are continuously lightened under the power supply of the miniature solar cell panel 1.
S4-1: if the water quality reaches the standard, the carbon quantum dots have no fluorescence quenching or low fluorescence quenching degree, the red light emitted by the red light LED light source 9 penetrates through the detection cavity 4 to be directly emitted, the ultraviolet light emitted by the ultraviolet LED light source 5 firstly excites the blue carbon quantum dots in the detection cavity 4 and radiates blue light (taking single blue carbon quantum dot detection as an example), finally, the red light, the blue light and the weak ultraviolet light are emitted in the light-transmitting cover 12, and the human eye observes white light formed by mixing the red light and the blue light.
S4-2: if the water quality does not reach the standard, the carbon quantum dots are subjected to severe fluorescence quenching, red light emitted by the red light LED light source 9 penetrates through the detection cavity 4 to be directly emitted, ultraviolet light emitted by the ultraviolet LED light source 5 cannot excite blue carbon quantum dots in the detection cavity 4, and is directly emitted, and finally red light and ultraviolet light are emitted in the light-transmitting cover 12, and red light with a warning effect is observed by human eyes.
S5: after a certain period of time, the mixed liquid in the detection chamber 4 is discharged into the waste liquid chamber 8 through the conduit 10.
S6: the detection method and the result of the visual signal water quality detection buoy of the embodiment are shown as steps S1-S5, which are performed in a loop until the carbon quantum dots pre-stored in the carbon quantum dot cavity 4 are used up.
S7: observing the light-emitting condition of the water quality detection buoy in the detected water area by human eyes at a distance, and judging the water quality condition; the luminous color of the buoy changes along with the change of the water quality condition.
In summary, compared with the prior art, the present embodiment has the following beneficial effects:
(1) in this embodiment, all components are supplied power by miniature solar cell panel, and very environmental protection can work for a long time and need not maintain.
(2) In this embodiment, the carbon quantum dots are used as water quality detection materials, are non-toxic and harmless, are environment-friendly, and have high detection efficiency.
(3) In the embodiment, the water quality detection buoy can float on the water body for a long time, and long-term monitoring is carried out on the water quality of the drainage basin.
(4) In this embodiment, the water quality detection result is displayed by the light color, and the human eye can easily observe the result from a distance. When the water quality reaches the standard, the buoy emits white light; when the water quality does not reach the standard, the buoy emits red light with warning effect. The light color changes in real time according to the change of water quality.
While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.
Claims (10)
1. The utility model provides a visual signal water quality testing buoy which characterized in that includes:
the water taking module is used for automatically extracting liquid to be detected and conveying the extracted liquid to be detected to the detection module;
the detection module comprises a detection cavity and at least one carbon quantum dot cavity for storing liquid carbon quantum dots with preset colors, the detection cavity is used for mixing the liquid to be detected and the liquid carbon quantum dots, and the detection cavity is made of transparent materials; and the lamp source comprises an ultraviolet LED light source and a red LED light source, and light of the lamp source is transmitted through the detection cavity.
2. The visual signal water quality detection buoy of claim 1, wherein the water intake module comprises a floating base and a water intake device mounted in the floating base;
the floating base provides buoyancy for the visual signal water quality detection buoy, and the water taking device pumps the liquid to be detected to the detection module through the guide pipe.
3. The visual signal water quality detection buoy of claim 1, wherein the detection module further comprises a housing and a light-transmitting cover, the housing and the light-transmitting cover form a closed container, and the detection cavity and the carbon quantum dot cavity are arranged in the closed container;
the water body cavity is used for storing liquid to be detected, the waste liquid cavity is used for storing liquid mixed in the detection cavity, and the micro solar cell panel provides power for the water taking module and the lamp source.
4. The visual signal water quality detection buoy according to claim 3, wherein an inner bracket is arranged on the inner wall of the shell and used for fixing the detection cavity, the inner bracket and the detection cavity form a platform, the platform divides the closed container into a first closed container and a second closed container, and the first closed container is clamped between the light-transmitting cover and the platform;
the water body cavity, the carbon quantum dot cavity and the micro solar cell panel are arranged in the first closed container;
the waste liquid cavity and the light source are arranged in the second closed container.
5. The visual signal water quality detection buoy of claim 3, wherein the housing, the water body cavity, the carbon quantum dot cavity and the waste liquid cavity are made of opaque materials.
6. The visual signal water quality detection buoy of claim 3, wherein the water body cavity is connected with the detection cavity through a first conduit, the carbon quantum dot cavity is connected with the detection cavity through a second conduit, and the detection cavity is connected with the waste liquid cavity through a third conduit;
directional valves are arranged in the first guide pipe, the second guide pipe and the third guide pipe and are used for controlling liquid to flow in a one-way mode.
7. The visual signal water quality detection buoy according to claim 1, wherein a groove is formed in the detection cavity, so that the liquid to be detected and the liquid carbon quantum dots are fully mixed.
8. The visual signal water quality detection buoy of claim 1, wherein the detection chamber is divided into n regions by an opaque baffle, n carbon quantum dot chambers are arranged in the detection module, and each carbon quantum dot chamber corresponds to a region of the detection chamber.
9. The visual signal water quality detection buoy according to claim 1, wherein a central axis of the ultraviolet LED light source and a central axis of the red LED light source point to the detection cavity, and an included angle between the two central axes is 60-120 °.
10. The visual signal water quality detection buoy according to claim 2, characterized in that the floating base comprises an inner cavity and a through hole, the water intake device is arranged in the inner cavity and draws detection liquid through the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120560786.8U CN214844765U (en) | 2021-03-12 | 2021-03-12 | Visual signal water quality testing buoy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120560786.8U CN214844765U (en) | 2021-03-12 | 2021-03-12 | Visual signal water quality testing buoy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214844765U true CN214844765U (en) | 2021-11-23 |
Family
ID=78758920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120560786.8U Active CN214844765U (en) | 2021-03-12 | 2021-03-12 | Visual signal water quality testing buoy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214844765U (en) |
-
2021
- 2021-03-12 CN CN202120560786.8U patent/CN214844765U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1563907A3 (en) | Biochemical reaction cartridge | |
| US10577256B1 (en) | Water monitoring device with replaceable reagent cartridge | |
| CN214844765U (en) | Visual signal water quality testing buoy | |
| WO2020114327A1 (en) | Multi-light intensity excited apparatus and method for detecting activity of single microalgae cell | |
| CN113049498A (en) | Visual signal water quality detection buoy and detection method thereof | |
| US20120102797A1 (en) | Led assembly having improved discernibility, an attachment method for the same, and a signboard and traffic safety display board to which the same has been attached | |
| CN201594367U (en) | LED surface luminescence road traffic signboard | |
| KR101679547B1 (en) | Train Type Light buoy For Maritime Searching | |
| CN113340884A (en) | Buoy type online water quality detection device based on vibrio qinghai | |
| CN101777292A (en) | Luminous road traffic sign board with LED panel | |
| CN213385920U (en) | Liquid product storage tank convenient for liquid level detection | |
| CN208622349U (en) | A kind of electronic guide | |
| CN203533219U (en) | Artificial cold light lamp simulating firefly light-emitting principle | |
| CN101368910B (en) | Optical reaction tank for triphosadenine bioluminescence detection | |
| US20220169546A1 (en) | Water monitoring device with replaceable reagent cartridge | |
| CN219320274U (en) | Outdoor sewage quick detection device | |
| CN214374319U (en) | Water hardness detector | |
| CN214539222U (en) | Reagent input module of water hardness detector | |
| TWI777449B (en) | Bacterial colony and strain inspection device | |
| CN2679778Y (en) | Box body for optical all reflection and light conducting fiber signal transmitting test | |
| CN103374512A (en) | Microalgae culture system | |
| CN212483353U (en) | Food microorganism fluorescence detector convenient to angle regulation | |
| CN210863755U (en) | Alcohol content detection baton | |
| CN217212228U (en) | Pen type residual chlorine color comparison device | |
| CN214845215U (en) | Crucian breeding water quality dosing monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |