Multi-light-source mechanism for monitoring water quality based on hyperspectral method

Abstract

The utility model relates to the technical field of water quality analysis, and discloses a multi-light-source mechanism for monitoring water quality based on a hyperspectral method, which comprises an analysis mechanism, a water sample mechanism is arranged on one side of the analysis mechanism, and a light source mechanism is arranged on one side of the water sample mechanism. The water sample collection part with the special design effectively prevents light source pollution, the analysis precision is improved, the whole space is small, carrying and installation are convenient, monitoring items are convenient to switch, and the work cycle is shortened so as to achieve the purpose of improving the efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of water quality analysis, and specifically relates to a multi-light source mechanism for monitoring water quality based on hyperspectral method. Background Technique

[0002] Water quality analysis is an important part of environmental monitoring and resource management. However, traditional water quality analysis methods often have problems such as complex operation, long analysis time, and insufficient accuracy. Moreover, the light sources of the current detection equipment on the market are single, and the monitoring items are limited. Therefore, designing a multi-light source mechanism for monitoring water quality based on hyperspectral method is of great significance for improving the efficiency and accuracy of water quality analysis. Content of the Utility Model

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a multi-light source mechanism for monitoring water quality based on hyperspectral method, which effectively solves the problems raised in the above background.

[0004] To achieve the above object, the utility model provides the following technical solution: A multi-light source mechanism for monitoring water quality based on hyperspectral method, including an analysis mechanism, a water sample mechanism is arranged on one side of the analysis mechanism, and a light source mechanism is arranged on one side of the water sample mechanism;

[0005] The light source mechanism includes a light source quick switching device, one end of the light source quick switching device is connected with a light source optical fiber, the light source optical fiber is connected with a port of the water sample mechanism, and the other end of the light source quick switching device is sequentially connected with a tungsten lamp, a deuterium lamp, and a spectrophotometer.

[0006] Preferably, the analysis mechanism includes an industrial control computer, one end of the industrial control computer is connected with a spectrometer, one end of the spectrometer is connected with an optical path quick switching device, and one end of the optical path quick switching device is connected with two light inlet optical fibers, and the two light inlet optical fibers are respectively connected with two ports of the water sample mechanism.

[0007] Preferably, the water sample mechanism includes a water sample collection seat, a 90° light source interface is arranged at one end of the water sample collection seat, a light source interface is arranged at one end of the water sample collection seat, a water sample carrier box is embedded inside the water sample collection seat, and a 180° light source interface is arranged at one end of the water sample carrier box, and the 180° light source interface and the light source interface are on the same straight line.

[0008] Preferably, one end of the water sample carrier box is connected with a water sample inlet, one side of the bottom of the water sample carrier box is connected with a water sample drain port, and the upper part of one side of the water sample carrier box away from the water sample inlet is connected with a water sample anti-overflow port.

[0009] Preferably, the light source optical fiber is connected to the light source interface. One of the light incident optical fibers is connected to the 90° light source interface, and the other light incident optical fiber is connected to the 180° light source interface. The light source optical fiber is arranged at a 90° angle with one of the light incident optical fibers, and the other light incident optical fiber is arranged in a 180° opposite shooting direction with the light source optical fiber.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] In the present utility model, through the multi-light source design, the system can obtain more comprehensive spectral information, improving the accuracy and reliability of analysis. The specially designed water sample collection part effectively prevents light source pollution, improving the analysis precision. The overall space is small, facilitating carrying and installation. The monitoring item switching is convenient, shortening the working cycle to achieve the purpose of improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings are used to provide further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model.

[0013] In the drawings:

[0014] Figure 1 is the overall structure schematic diagram of the present utility model;

[0015] Figure 2 is the structure schematic diagram of the analysis mechanism of the present utility model;

[0016] Figure 3 is the structure schematic diagram of the light source mechanism of the present utility model;

[0017] Figure 4 is the structure schematic diagram of the water sample mechanism of the present utility model;

[0018] Figure 5 is the structure schematic diagram of the water sample carrier box of the present utility model;

[0019] In the figure: 1. Analysis mechanism; 11. Industrial control computer; 12. Spectrometer; 13. Optical path quick switching device; 14. Light incident optical fiber; 2. Water sample mechanism; 21. Water sample collection seat; 22. 90° light source interface; 23. Light source interface; 24. Water sample carrier box; 25. 180° light source interface; 26. Water sample inlet; 27. Water sample drain port; 28. Water sample anti-overflow port; 3. Light source mechanism; 31. Light source quick switching device; 32. Light source optical fiber; 33. Tungsten lamp; 34. Deuterium lamp; 35. Spectrophotometer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment 1 is given by Figures 1-5 The present invention includes an analysis mechanism 1. A water sample mechanism 2 is provided on one side of the analysis mechanism 1, and a light source mechanism 3 is provided on one side of the water sample mechanism 2.

[0022] During use, the light source mechanism 3 generates corresponding spectra and irradiates them onto the water sample of the water sample mechanism 2. The water sample mechanism 2 transmits the collected spectral information to the spectrometer 12 of the analysis mechanism. The spectrometer 12 converts the collected spectral information into digital signals and transmits them to the PC through the USB2.0 interface for data processing and display.

[0023] The light source mechanism 3 includes a light source quick switching device 31. One end of the light source quick switching device 31 is connected to a light source optical fiber 32. The light source optical fiber 32 is connected to a port of the water sample mechanism 2. The other end of the light source quick switching device 31 is sequentially connected to a tungsten lamp 33, a deuterium lamp 34, and a spectrophotometer 35.

[0024] Through the settings of the tungsten lamp 33, the deuterium lamp 34, and the spectrophotometer 35, the detection device has multiple different light sources to choose from.

[0025] Among them, for the tungsten lamp 33: the spectral range is 400 - 780 nm, which is used to generate spectral information within the visible light range.

[0026] For the deuterium lamp 34: the wavelength is 190 - 400 nm, which provides spectral information in the ultraviolet light range.

[0027] The spectrophotometer 35: is used to generate light of a specific wavelength or wavelength range for the analysis of specific components.

[0028] The analysis mechanism 1 includes an industrial control computer 11. One end of the industrial control computer 11 is connected to a spectrometer 12. One end of the spectrometer 12 is connected to an optical path quick switching device 13. One end of the optical path quick switching device 13 is connected to two incoming light optical fibers 14. The two incoming light optical fibers 14 are respectively connected to two ports of the water sample mechanism 2.

[0029] The analysis mechanism 1 uses a micro fiber optic spectrometer. The spectrometer 12 has a 16-bit high-precision high-speed A / D converter, a 4K-depth FIFO system, and a USB2.0 high-speed data transmission interface. The spectrometer 12 can quickly collect the spectral information of the water sample and transmit the data to the PC through the USB2.0 interface for data processing and display.

[0030] The characteristic data of each spectrometer 12 are stored in the memory for easy management and calibration. At the same time, professional test software is used to make the data reading more convenient and support the hot swap function, improving the flexibility and efficiency of the system;

[0031] The water sample mechanism 2 includes a water sample collection seat 21. One end of the water sample collection seat 21 is provided with a 90° light source interface 22, one end of the water sample collection seat 21 is provided with a light source interface 23, a water sample carrier box 24 is embedded inside the water sample collection seat 21, and one end of the water sample carrier box 24 is provided with a 180° light source interface 25. The 180° light source interface 25 and the light source interface 23 are on the same straight line;

[0032] One end of the water sample carrier box 24 is connected with a water sample inlet 26. One side of the bottom of the water sample carrier box 24 is connected with a water sample drain 27. The upper part of one side of the water sample carrier box 24 away from the water sample inlet 26 is connected with a water sample overflow prevention port 28;

[0033] The light source optical fiber 32 is connected to the light source interface 23. One of the light incident optical fibers 14 is connected to the 90° light source interface 22, and the other light incident optical fiber 14 is connected to the 180° light source interface 25. The light source optical fiber 32 and one of the light incident optical fibers 14 are arranged at a 90° angle, and the other light incident optical fiber 14 and the light source optical fiber 32 are arranged in a 180° opposite shooting direction;

[0034] The water sample mechanism 2 is designed as an internal dark box to prevent light source pollution. There are three optical fiber interfaces on the outside, which are respectively connected to the light source optical fiber 32, the light incident optical fiber 14 in the 180° opposite shooting direction, and the light incident optical fiber 14 in the 90° direction. This design enables the light source to irradiate the water sample at different angles, so as to obtain more comprehensive spectral information;

[0035] Working principle: When in use, add water samples through the water sample inlet 26 and determine the monitoring items, such as: absorption light, scattered light, fluorescence or turbidity;

[0036] Then select different light sources through the light source quick switching device 31, select the tungsten lamp 33, deuterium lamp 34 or spectrophotometer 35;

[0037] Then use the optical path quick switching device 13 to select the receiving mode, select the 90° light source interface 22 or the light source interface 23;

[0038] After being analyzed by the spectrometer 12, displayed and operated and saved on the industrial control computer 11, the water sample is discharged from the water sample drain 27 and the inside of the detection pool is cleaned. After completion, the monitoring of the next item can be carried out.

Claims

1. A multi-light source mechanism for monitoring water quality based on hyperspectral method, comprising an analysis mechanism (1), characterized in that: A water sample mechanism (2) is provided on one side of the analysis mechanism (1), and a light source mechanism (3) is provided on one side of the water sample mechanism (2); The light source mechanism (3) comprises a light source rapid switching device (31), one end of which is connected to a light source optical fiber (32), the light source optical fiber (32) is connected to a port of the water sample mechanism (2), and the other end of which is connected in sequence to a tungsten lamp (33), a deuterium lamp (34), and a spectrophotometer (35).

2. The multi-light source mechanism for monitoring water quality based on hyperspectral method according to claim 1, characterized in that: The analysis mechanism (1) comprises an industrial computer (11), one end of the industrial computer (11) is connected to a spectrometer (12), one end of the spectrometer (12) is connected to a light path fast switching device (13), one end of the light path fast switching device (13) is connected to two light input optical fibers (14), and the two light input optical fibers (14) are respectively connected to two ports of the water sample mechanism (2).

3. The multi-light source mechanism for monitoring water quality based on hyperspectral method according to claim 1, characterized in that: The water sampling mechanism (2) comprises a water sampling seat (21), one end of the water sampling seat (21) is provided with a 90° light source interface (22), one end of the water sampling seat (21) is provided with a light source interface (23), a water sample carrier box (24) is embedded in the water sampling seat (21), one end of the water sample carrier box (24) is provided with a 180° light source interface (25), and the 180° light source interface (25) and the light source interface (23) are located in a straight line.

4. The multi-light source mechanism for monitoring water quality based on hyperspectral method according to claim 3 is characterized in that: One end of the water sample carrier box (24) is connected to a water sample inlet (26), one side of the bottom of the water sample carrier box (24) is connected to a water sample drain outlet (27), and the upper part of the side of the water sample carrier box (24) away from the water sample inlet (26) is connected to a water sample overflow prevention outlet (28).

5. The multi-light source mechanism for monitoring water quality based on hyperspectral method according to claim 1, characterized in that: The light source optical fiber (32) is connected to the light source interface (23), one of the light input optical fibers (14) is connected to the 90° light source interface (22), the other light input optical fiber (14) is connected to the 180° light source interface (25), the light source optical fiber (32) is arranged at a 90° angle to one of the light input optical fibers (14), and the other light input optical fiber (14) is arranged at a 180° opposite direction to the light source optical fiber (32).

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