CN218885740U - Alga content detection device - Google Patents
Alga content detection device Download PDFInfo
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- CN218885740U CN218885740U CN202222583798.XU CN202222583798U CN218885740U CN 218885740 U CN218885740 U CN 218885740U CN 202222583798 U CN202222583798 U CN 202222583798U CN 218885740 U CN218885740 U CN 218885740U
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Abstract
The utility model discloses an algae content detection device, which comprises a shell, a PCB arranged inside the shell, and a plurality of light sources and photoelectric signal receiving devices which are welded on the PCB and emit different wavelengths, wherein the light inlet end of the photoelectric signal receiving device is provided with a light filter; the light guide plate is characterized in that a front end seat is arranged at the end part of the shell, a first light guide column and a plurality of second light guide columns are embedded in the front end seat, and the first light guide column is located at the middle shaft position of the front end seat. The utility model has the advantages that: a plurality of light sources capable of emitting different wavelengths are welded on the water tank, substances in water (such as chlorophyll, phycoerythrin, phycocyanin and the like) are irradiated by light with different wavelengths, fluorescence is excited by the substances in the water, the fluorescence is converted into an electric signal by a photoelectric signal receiving device, and then the electric signal is processed by a PCB (printed Circuit Board), so that the content value of algae in the water is obtained, and the organisms of the algae in the water can be obtained more accurately.
Description
Technical Field
The utility model relates to a water quality monitoring field, especially an algae content detection device.
Background
The natural environment has a large demand for water quality monitoring, and rivers, reservoirs, ponds, gulfs, water plants, sewage treatment plants and the like need to regularly monitor the water quality, and particularly, water areas such as offshore sea areas which are about to or have large-area red tides, lakes and reservoirs which have water blooms need to be rapidly, timely and accurately emergent and managed through water quality monitoring. The manual sampling is carried back to the laboratory for detection and analysis, which not only consumes long time, but also lacks continuous monitoring on water quality change, and can not meet the requirements of water area emergency and management. Therefore, the significance of online water quality monitoring becomes more important.
In the current on-line water quality monitoring technology, chemical sensitive, biological sensitive, ion sensitive and photoelectric sensors are commonly used to obtain the relevant parameter values of the water sample to be monitored. The water sample monitoring device does not need chemical reagents when in use, and can be directly placed in a water sample to be monitored.
Eutrophication is a serious problem commonly faced by rivers and water bodies in China. Measuring the density of algae in a water body is one of the important indicators for water quality monitoring. According to the discovered algae, the algae all contain chlorophyll, and individual algae also contain phycocyanin and phycoerythrin, such as blue algae and red algae, the traditional algae measuring device mainly monitors the content of chlorophyll, neglects the detection of the content of phycocyanin and phycoerythrin, and measuring the biomass of the algae by only using the content of chlorophyll can possibly underestimate the population quantity, so that the measurement data is inaccurate.
Some existing algae content detection devices can only detect the content of one kind of algae in water, for example, only detect the content of chlorophyll, the content of phycocyanin or the content of phycoerythrin, and for the detection of algae content in different types of water areas (such as fresh water and seawater), the algae content detection devices cannot be used universally due to different detection parameters. When detecting the algae content in fresh water, the chlorophyll content and the phycocyanin content need to be detected at the same time, but when detecting the algae content in seawater, the chlorophyll content and the phycoerythrin content need to be detected at the same time, and the existing algae content detection device cannot detect chlorophyll and/or phycocyanin and/or phycoerythrin in the same algae content detection device at the same time, so that the error caused by underestimation of the algae content occurs when the algae content in the water is detected by using a single algae content detection device, the accuracy of the detection result is low, and therefore the algae content detection device is provided for solving the problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide an algae content testing device.
The purpose of the utility model is realized through the following technical scheme:
the algae content detection device comprises a shell, a PCB arranged in the shell, and a plurality of light sources and photoelectric signal receiving devices which are welded on the PCB and emit different wavelengths, wherein the light inlet end of each photoelectric signal receiving device is provided with an optical filter; the utility model discloses a photoelectric signal receiver, including shell tip, front end seat, first leaded light post, photoelectric signal receiver, second leaded light post, shell tip is provided with the front end seat, embedded first leaded light post and a plurality of second leaded light post of being equipped with of front end seat, first leaded light post is located the axis position of front end seat, and the second leaded light post encircles first leaded light post and equally divide the distribution, first leaded light post connects light filter and photoelectric signal receiver, the second leaded light post connects the light source, and second leaded light post and light source quantity looks adaptation, the other end of shell is provided with waterproof communication subassembly.
Preferably, the waterproof communication assembly comprises a rear end seat arranged at the other end of the shell and a waterproof joint arranged on the symmetry axis of the rear end seat and used for power supply and communication.
Preferably, a device fixing member for fixing the photoelectric signal receiving device and the plurality of light sources is arranged in the housing.
Preferably, the first light guide column is a straight light guide column, the second light guide column is an L-shaped light guide column, the end part of the second light guide column is provided with a bent part, the bending direction of the bent part is opposite to that of the first light guide column, and the bent part is flush with the front end seat; one end of the first light guide column is flush with the front end seat.
Preferably, the bending angle of the bending part of the second light guide pillar is 30 to 45 °.
Preferably, the central wavelength of the optical filter is 650 +/-10 nm, and the transmittance of the dielectric band is better than 0.0001.
Preferably, the photoelectric signal receiving device is a photodiode, and the photon efficiency at 650nm is greater than 0.4.
Preferably, the light source is a light emitting diode.
Preferably, the number of the second light guide columns is 2, and the central wavelength of one light source is 470nm +/-15 nm; the central wavelength of the other light source is 590 +/-15 nm or 525 +/-15 nm.
Preferably, the number of the second light guide columns is 3, and the central wavelengths of the light sources are 470 +/-15 nm, 525 +/-15 nm and 590 +/-15 nm respectively.
The utility model has the advantages of it is following:
1. the utility model discloses a weld a plurality of light sources that can launch different wavelengths at last, light through different wavelengths shines the material of aquatic, make the material (for example chlorophyll, phycoerythrin, phycocyanin etc.) excitation fluorescence in aquatic, thereby these fluorescence are carried out to be changed light signal into the signal of telecommunication by photoelectric signal receiving arrangement, then handle through the PCB board again, thereby reach the content value of the alga in the aquatic, and then can accurately reach the biology of aquatic alga more, the unsafe problem that the device of having solved traditional measurement alga mainly monitors many and brings to chlorophyll content.
2. The utility model discloses a set up water joint at the outer tip of rear end seat and can the shell carry out the monitoring in aqueous the isolated outside at the shell of water, do not influence power supply and transmission information etc. in addition to the shell.
Drawings
Fig. 1 is a schematic diagram of the explosion structure of the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention.
Fig. 3 isbase:Sub>A schematic sectional view of the second light guide column of the present invention, which is 2 in the direction frombase:Sub>A tobase:Sub>A.
Fig. 4 is a schematic sectional view of the second light guide column of the present invention with 2 light guide columns in the direction of B-B.
In the figure, 1, a housing; 2. a rear end seat; 3. a waterproof joint; 4. a PCB board; 5. a light source; 6. a photoelectric signal receiving device; 7. an optical filter; 8. a device mount; 9. a front end seat; 10. a first light guide pillar; 11. and a second light guide pillar.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As in the first embodiment shown in figures 1-3,
an algae content detection device comprises a shell 1, a PCB 4 arranged in the shell 1, and a plurality of light sources 5 and photoelectric signal receiving devices 6 which are welded on the PCB 4 and emit different wavelengths; the light inlet end of the photoelectric signal receiving device 6 is provided with an optical filter 7; the utility model discloses a light guide device, including shell 1, front end seat 9, first leaded light post 10 and a plurality of second leaded light post 11 are equipped with to embedded the leading end seat 9 of being equipped with of front end seat 9, first leaded light post 10 is located the axis position of front end seat 9, and second leaded light post 11 encircles first leaded light post 10 and distributes equally, first leaded light post 10 connects light filter 7 and photoelectric signal receiving arrangement 6, second leaded light post 11 connects light source 5, and second leaded light post 11 and 5 quantity looks adaptations of light source, the other end of shell 1 is provided with waterproof communication assembly.
The light sources 5 can be various and are selected according to different needs, in this embodiment, the light sources 5 are light emitting diodes, each light emitting diode corresponds to the second light guide column 11 which is matched with the corresponding light emitting diode, the plurality of light sources 5 which can emit light with different wavelengths are welded on the PCB 4, the algae content is measured by adopting a fluorescence principle, substances in water (such as chlorophyll, phycoerythrin, phycocyanin and the like) are irradiated by light with different wavelengths, and the substances in water (such as chlorophyll, phycoerythrin, phycocyanin and the like) are excited to emit fluorescence, so that the fluorescence is converted into an electrical signal by the photoelectric signal receiving device 6, and then the electrical signal is processed by the PCB 4, so that the content value of algae in water is obtained, the organisms in water can be more accurately obtained, and the problem that the traditional algae measuring device is inaccurate due to the fact that the chlorophyll content is mainly monitored by the traditional algae measuring device is solved;
the optical filters 7 with different central wavelengths can filter light except the central wavelength, and the optical filters 7 play a role in filtering light with other wavelengths, so that the monitoring is more accurate.
The waterproof communication assembly comprises a rear end seat 2 arranged at the other end of the shell 1 and a waterproof joint 3 which is arranged on the rear end seat 2 and is used for power supply and communication and is arranged on the symmetry axis;
the waterproof connector 3 can isolate water outside the housing 1 when the housing 1 is monitored in water, and does not influence power supply, information transmission and the like in the housing 1.
A device fixing part 8 for fixing the photoelectric signal receiving device 6 and the plurality of light sources 5 is arranged in the shell 1; the light source 5 and the photoelectric signal receiving device 6 are fixed through the device fixing part 8, so that the purpose that the light source 5 and the photoelectric signal receiving device 6 cannot transmit light or receive a light signal and cannot achieve monitoring due to the fact that the light source 5 and the photoelectric signal receiving device 6 move in the use process is prevented.
The first light guide column 10 is a straight light guide column, the second light guide column 11 is an L-shaped light guide column, the end part of the second light guide column 11 is provided with a bending part, the bending direction of the bending part is opposite to that of the first light guide column 10, and the bending part is flush with the front end seat 9; one end of the first light guide pillar 10 is flush with the front end seat 9.
The bending angle of the bending portion of the second light guide bar 11 is 30 ° to 45 °, and in this embodiment, the preferable bending angle is 45 °.
The central wavelength of the optical filter 7 is 650 +/-10 nm, the transmittance of the dielectric band is better than 0.0001, and the central wavelength of the optical filter 7 is 650nm preferably.
The photoelectric signal receiving device 6 is a photodiode, and the photon efficiency at 650nm is greater than 0.4.
Detecting the chlorophyll content in the water body, wherein the central wavelength of a light-emitting diode is 470 +/-15 nm; measuring the phycocyanin content in the water body, wherein the central wavelength of the light-emitting diode is 590 +/-15 nm, measuring the phycoerythrin content in the water body, the central wavelength of the light-emitting diode is 525 +/-15 nm, and the central wavelength of fluorescence generated by the light-emitting diode, the light-emitting diode and the light-emitting diode is 650 +/-15 nm.
General algal blooms occur in fresh water, phycocyanin content is high, red tides occur in seawater, phycoerythrin content is high, and chlorophyll content is highest in algae.
The number of the second light guide columns 11 is 2, and the central wavelength of one light source 5 is 470nm +/-15 nm; the central wavelength of the other light source 5 is 590 +/-15 nm;
specifically, the central wavelength of the light emitted by one of the light sources 5 is 470nm, and the other central wavelength is 590nm, so that chlorophyll and phycocyanin in water are measured, and the combination of the wavelengths is used for monitoring fresh water.
In the present embodiment, the range of values described, for example, the range of values expressed by A + -Bnm is between (A-B) nm and (A + B) nm, and the specific example, the range of values expressed by the center wavelength of 470+ -15 nm of the light source 5 means that the center wavelength of the light source 5 is between (470-15) nm and (470 + -15) nm, that is, between 455nm and 485 nm.
The working process of the utility model is as follows: the components inside the shell 1 are powered and controlled through the waterproof connector 3, the PCB 4 is provided with a signal processing module, the PCB 4 is connected with an external upper computer, the upper computer can be used for electronic equipment such as a computer, the PCB 4 is provided with a controller, the controller can control the light source 5 to work, the upper computer sends a command for controlling the light source 5 to the PCB 4, the light source 5 sends light with a specific wavelength in the embodiment, the wavelength of the sent light is 470nm, the second light guide column 11 enters the water body to be detected, algae are contained in the water body to be detected, the fluorescence is sent out, the sent fluorescence is transmitted through the first light guide column 10 and is received by the photoelectric signal receiving device 6 through the optical filter 7, the received fluorescence signals are converted into electric signals by the photoelectric signal receiving device 6, the electric signals are processed through the signal processing module on the PCB 4, mathematical operation is carried out through a mathematical model, corresponding algae content values are calculated, the calculated values are transmitted to the upper computer, and the algae content measurement is achieved.
The second embodiment:
the difference between the present embodiment and the above embodiments is that the number of the second light guiding columns 11 is 2, and the central wavelength of one light source 5 is 470nm ± 15nm; the other light source 5 has a central wavelength of 525 + -15 nm.
Specifically, one light source with the wavelength of 470nm and the other light source with the wavelength of 525nm is adopted to measure chlorophyll and phycoerythrin in a water body, and the combination of the wavelengths is used for monitoring seawater.
In the present embodiment, the described range of values, for example, the range of values expressed by A + -Bnm, is between (A-B) nm and (A + B) nm, and a specific example, the range of values expressed by the center wavelength of the light source 5 being 470+ -15 nm means that the center wavelength of the light source 5 is between (470-15) nm and (470 + -15) nm, that is, between 455nm and 485 nm.
The working principle of this embodiment is the same as that of the first embodiment, and detailed description thereof is omitted.
Example three:
referring to fig. 4, the present embodiment is different from the above embodiments in that the number of the second light guiding columns 11 is 3, and the central wavelengths of the light sources 5 are 470 ± 15nm, 525 ± 15nm, and 590 ± 15nm, respectively.
Specifically, the central wavelengths of the light source 5 are 470nm, 525nm and 590nm respectively, so that chlorophyll, phycoerythrin and phycocyanin in the water body are detected, and the combination of the wavelengths is suitable for universal monitoring of the whole water area.
In the present embodiment, the described range of values, for example, the range of values expressed by A + -Bnm, is between (A-B) nm and (A + B) nm, and a specific example, the range of values expressed by the center wavelength of the light source 5 being 470+ -15 nm means that the center wavelength of the light source 5 is between (470-15) nm and (470 + -15) nm, that is, between 455nm and 485 nm.
The working principle of this embodiment is the same as that of the first embodiment, and detailed description thereof is omitted.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides an alga content testing device which characterized in that: the LED illumination device comprises a shell (1), a PCB (printed circuit board) arranged in the shell (1), and a plurality of light sources (5) and photoelectric signal receiving devices (6) which are welded on the PCB (4) and emit different wavelengths, wherein light filters (7) are arranged at light inlet ends of the photoelectric signal receiving devices (6); shell (1) tip is provided with front end seat (9), embedded first leaded light post (10) and a plurality of second leaded light post (11) of being equipped with in front end seat (9), first leaded light post (10) are located the axis position of front end seat (9), and second leaded light post (11) encircle first leaded light post (10) and equally divide the distribution, first leaded light post (10) connect light filter (7) and photoelectric signal receiving device (6), second leaded light post (11) connect light source (5), and second leaded light post (11) and light source (5) quantity looks adaptation, the other end of shell (1) is provided with waterproof communication subassembly.
2. The apparatus for detecting the content of algae according to claim 1, wherein: the waterproof communication assembly comprises a rear end seat (2) arranged at the other end of the shell (1) and a waterproof joint (3) which is arranged on the symmetry axis of the rear end seat (2) and used for power supply and communication.
3. The apparatus for detecting the content of algae according to claim 1, wherein: and a device fixing piece (8) for fixing the photoelectric signal receiving device (6) and the light sources (5) is arranged in the shell (1).
4. The device for detecting the content of algae according to claim 1, wherein: the first light guide column (10) is a straight light guide column, the second light guide column (11) is an L-shaped light guide column, a bending part with the bending direction opposite to that of the first light guide column (10) is arranged at the end part of the second light guide column (11), and the bending part is flush with the front end seat (9); one end of the first light guide column (10) is flush with the front end seat (9).
5. The device for detecting the content of algae according to claim 4, wherein: the bending angle of the bending part of the second light guide column (11) is 30-45 degrees.
6. The device for detecting the content of algae according to claim 1, wherein: the central wavelength of the optical filter (7) is 650 +/-10 nm, and the transmittance of the dielectric band is superior to 0.0001.
7. The device for detecting the content of algae according to claim 1, wherein: the photoelectric signal receiving device (6) is a photodiode, and the receiving efficiency of the photon efficiency at 650nm is more than 0.4.
8. The apparatus for detecting the content of algae according to claim 1, wherein: the light source (5) is a light emitting diode.
9. The apparatus according to any one of claims 1 to 8, wherein: the number of the second light guide columns (11) is 2, and the central wavelength of one light source (5) is 470nm +/-15 nm; the central wavelength of the other light source (5) is 590 +/-15 nm or 525 +/-15 nm.
10. The apparatus according to any one of claims 1 to 8, wherein: the number of the second light guide columns (11) is 3, and the central wavelength of the light source (5) is 470 +/-15 nm, 525 +/-15 nm and 590 +/-15 nm respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222583798.XU CN218885740U (en) | 2022-09-28 | 2022-09-28 | Alga content detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222583798.XU CN218885740U (en) | 2022-09-28 | 2022-09-28 | Alga content detection device |
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| CN218885740U true CN218885740U (en) | 2023-04-18 |
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| CN202222583798.XU Active CN218885740U (en) | 2022-09-28 | 2022-09-28 | Alga content detection device |
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