Turbidimeter based on fisheye lens

Abstract

The utility model provides a turbidimeter based on a fisheye lens, and belongs to the technical field of turbidimeters. A measuring assembly and a debugging seat are sequentially inserted in an equipment box from front to back, and a battery, a gray scale plate, a calculation scale and a debugging rod are inserted in one side of the debugging seat. The device is reasonable in structure, the detection hydraulic machine drives the detection hydraulic rod to ascend and descend, the detection motor drives the detection shaft to rotate, the detection hydraulic machine and the detection motor enable the detection assembly to adjust the height and the direction, adjustment is carried out in different environments, and the influence of environmental stray light on measurement results is further reduced. The fisheye lens is used for collecting images and the camera is used for imaging, the images are transmitted into the turbidimeter and the detector for detection through the wire, and the characteristic that the energy and polarization state of the incident light are changed due to interaction of the aerosol particles and the incident light is called as the scattering characteristic of the aerosol particles. And the research and detection results of the scattering characteristics can promote the fields of weather observation and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of turbidity meters, in particular to a turbidity meter based on a fisheye lens. Background Art

[0002] Turbidimeter is an emerging technology for observing aerosol scattered light. It can be roughly divided into five categories according to the design form: integrating turbidimeter, single detector scanning type, multi-detector array type, imaging turbidimeter and ellipsoidal reflection type. Among them, the imaging camera type uses CCD as the imaging element. Since all pixels in the CCD are functionally equivalent, the scattering center can be automatically determined by the light intensity distribution without the need for instrument alignment. In addition, the photoelectric conversion linearity of the CCD is good and can be used to measure the scattered light intensity.

[0003] Although the content of aerosol in the atmosphere is very small, it includes objects in different phases. Therefore, it has an important influence on many physical and chemical processes occurring in the atmosphere and is very harmful to the atmospheric environment. Through the scattering and absorption of electromagnetic waves, aerosol particles will affect the ground-air radiation transmission. This influence is widely present in the ultraviolet light band, visible light band to infrared light band. The interaction between aerosol particles and incident light causes the energy and polarization state of the incident light to change. The characteristic is called the scattering characteristic of aerosol particles. The study and detection results of its scattering characteristics have a promoting effect on fields such as weather observation. Light scattering analysis of aerosol particles is a real-time measurement method, which solves the tedious and time-consuming use of filtering to collect aerosols, and further reduces the influence of environmental stray light on the measurement results and quickly debugs the equipment. Therefore, a utility model is proposed to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a turbidity meter based on a fisheye lens to solve the problems of the cumbersome and time-consuming process of filtering and collecting aerosols, the influence of ambient stray light on the measurement results and the debugging of the equipment system.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A turbidity meter based on a fisheye lens comprises an equipment box, wherein a measuring component and a debugging socket are sequentially inserted inside the equipment box from front to back, a battery is inserted on one side of the debugging socket, a grayscale plate, a calculation ruler and a debugging rod are sequentially inserted on the inner wall of the equipment box from front to back, a detection box is rotatably connected to one side of the upper surface of the equipment box through a hinge, a detection hydraulic press is inserted inside the detection box, a detection hydraulic rod is sleeved on one end of the detection hydraulic press, a motor seat is fixedly connected to one end of the detection hydraulic rod, a detection motor is inserted on the upper surface of the motor seat, a detection shaft is sleeved on one end of the detection motor, and a detection component is inserted on the top of the detection shaft.

[0007] Optionally, the measuring assembly includes a measuring tube, a filter, a measuring board, a heat sink, a diode, an infrared emitter, a polarizing frame, a polarizer, and a measuring cover. The filter is plugged into the interior of the measuring tube, the measuring board is plugged into one end of the measuring tube, a heat sink, a diode, and an infrared emitter are sequentially plugged into one side of the measuring plate from top to bottom, the polarizing frame is plugged into the other end of the measuring tube, the polarizer is plugged into the interior of the polarizing frame, and the measuring cover is plugged into one end of the measuring tube.

[0008] Optionally, the detection assembly includes a detection tube, a detection frame, a detector, a turbidity meter, a wire, a detection plate, a camera, and a fisheye lens. The detection frame is plugged into the interior of one end of the detection tube, the detector is plugged into the bottom of the detection frame, the turbidity meter is plugged into the upper surface of the detector, a wire is plugged into one side of the turbidity meter, the other end of the detection tube is plugged into the detection plate, the interior of the detection plate is plugged into the camera, and one end of the camera is sleeved with a fisheye lens.

[0009] Optionally, a connection socket is provided on a side of the camera close to the turbidity meter, and the connection socket of the camera is fixed to the wire to prevent it from falling off.

[0010] Optionally, a detection hole is opened on the inner wall of the detection tube close to the detection frame, and the detection hole of the detection tube limits the detection frame.

[0011] Optionally, two equipment bolts are provided inside the equipment box, and the measuring component is fixed to the detection component by the equipment bolts.

[0012] Optionally, a fixing cylinder is inserted into the upper surface of the detection shaft, and the fixing cylinder of the detection shaft fixes the detection assembly to prevent it from falling.

[0013] Optionally, a grayscale threaded seat is provided on the lower surface of the grayscale board, and a debugging rod is threadedly penetrated through the grayscale threaded seat of the grayscale board.

[0014] Optionally, two fixing holes are provided on the surface of the measuring board, and a measuring block is provided at one end of the diode and the infrared emitter, and the fixing holes of the measuring board fix the measuring blocks of the diode and the infrared emitter respectively.

[0015] Optionally, a hydraulic seat is provided at the bottom of the detection box, and the hydraulic seat of the detection box fixes the detection hydraulic press to prevent the detection hydraulic press from loosening during movement.

[0016] Compared with the prior art, the utility model has at least the following beneficial effects:

[0017] In the above scheme, the debugging rod is connected to the calculation ruler and placed at a certain distance. The relationship between the pixel coordinates and the scale on the ruler is found through imaging, the scattering angles corresponding to different scale values ​​on the ruler are calculated, and the scattering angle and pixel coordinates corresponding to each sample point are calculated. The distortion of the fisheye lens is calibrated. The debugging rod is connected to the grayscale plate and placed. A fisheye lens is used to shoot a uniformly illuminated grayscale plate or white wall. The data is read and the grayscale value of each pixel is obtained. The brightness information in the calibration image is extracted, and a brightness calibration curve is established. The extracted brightness information is compared with the expected uniform brightness, and a brightness calibration curve is established to describe the brightness deviation at different positions. The uniform grayscale plate or white wall is photographed again. The wall, and compare the brightness distribution of the calibrated image, verify the accuracy and stability of the calibration effect. Through this method, the uneven brightness problem in fisheye lens imaging can be effectively corrected, and the imaging quality and accuracy can be improved. The diode and infrared emitter emit a light source that is neither uniform nor radially symmetrical. The light emitted by the light source is shaped and passed through a filter to further filter out stray light caused by dust and surface defects of optical components, maintaining a smooth and generally circular Gaussian distribution. The processed light is scattered by the aerosol after passing through the polarizer and collected by the fisheye lens, thus avoiding the tedious and time-consuming problem of using filtration to collect aerosols, while avoiding the risk of changing the original properties or contaminating the sample.

[0018] By setting up a detection hydraulic press to drive the detection hydraulic rod to rise and fall, and a detection motor to drive the detection shaft to rotate, the detection hydraulic press and the detection motor enable the detection component to adjust the height and direction, and can be adjusted to different environments to further reduce the impact of environmental stray light on the measurement results. The measurement component is connected to the detection component, the fisheye lens collects the image with the camera, and the wires are transmitted to the turbidity meter and the detector for detection. The interaction between aerosol particles in the atmosphere and the incident light causes the energy and polarization state of the incident light to change. This characteristic is called the scattering characteristic of aerosol particles. The study of its scattering characteristics and the detection results have a promoting effect on fields such as weather observation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present invention and, together with the description, further serve to explain the principles of the present invention and enable those skilled in the relevant art to make and use the present invention.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is an exploded schematic diagram of the equipment box structure of the utility model;

[0022] Figure 3 This is an exploded schematic diagram of the measuring tube structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the explosion of the detection shaft structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the explosion of the detection tube structure of the utility model;

[0025] Figure 6 It is a schematic plan view of the detection tube structure of the utility model.

[0026] [reference numerals]

[0027] 1. Equipment box; 101. Hinge; 102. Equipment bolt; 2. Measuring assembly; 201. Measuring tube; 202. Filter; 203. Measuring board; 204. Heat dissipation strip; 205. Diode; 206. Infrared emitter; 207. Polarizing frame; 208. Polarizer; 209. Measuring cover; 3. Debugging seat; 4. Battery; 5. Gray scale board; 6. Calculating ruler; 7. Debugging rod; 8. Detection box; 9. Detection hydraulic press; 10. Detection hydraulic rod; 11. Motor seat; 12. Detection motor; 13. Detection shaft; 14. Detection assembly; 1401. Detection tube; 1402. Detection frame; 1403. Detector; 1404. Turbidimeter; 1405. Wire; 1406. Detection board; 1407. Camera; 1408. Fisheye lens.

[0028] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0029] The following is a detailed description of a turbidity meter based on a fisheye lens provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0030] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0031] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0032] It is to be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0033] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0034] like Figure 2 and Figure 3As shown, the embodiment of the utility model provides a turbidity meter based on a fisheye lens, including a device box 1, in which a measuring component 2 and a debugging seat 3 are sequentially plugged from front to back. The measuring component 2 includes a measuring tube 201, a filter 202, a measuring board 203, a heat dissipation bar 204, a diode 205, an infrared transmitter 206, a polarizing frame 207, a polarizer 208, and a measuring cover 209. The filter 202 is plugged into the measuring tube 201, the measuring board 203 is plugged into one end of the measuring tube 201, and the heat dissipation bar 204, the diode 205, and the infrared transmitter 206 are sequentially plugged into one side of the measuring board 203 from top to bottom. The other end of the measuring tube 201 is plugged into the polarizing frame 207, and the polarizer 208 is plugged into the polarizing frame 207. A measuring cover 209 is plugged into one end of the measuring tube 201, two fixing holes are provided on the surface of the measuring plate 203, measuring blocks are provided at one end of the diode 205 and the infrared transmitter 206, and the fixing holes of the measuring plate 203 fix the measuring blocks of the diode 205 and the infrared transmitter 206 respectively, a battery 4 is plugged into one side of the debugging seat 3, and the inner wall inside the equipment box 1 is plugged into the grayscale board 5, the calculation scale 6, and the debugging rod 7 in sequence from front to back, a grayscale threaded seat is provided on the lower surface of the grayscale board 5, and the grayscale threaded seat of the grayscale board 5 is threadedly penetrated by the debugging rod 7, a threaded hole is provided on the lower surface of the calculation scale 6, and the threaded hole of the calculation scale 6 is threadedly penetrated by the debugging rod 7, a detection shaft 13 is sleeved on one end of the detection motor 12, and a detection shaft 13 is plugged into the top The detection assembly 14 includes a detection tube 1401, a detection frame 1402, a detector 1403, a turbidity meter 1404, a wire 1405, a detection plate 1406, a camera 1407, and a fisheye lens 1408. The detection frame 1402 is plugged into one end of the detection tube 1401, the detector 1403 is plugged into the bottom of the detection frame 1402, the turbidity meter 1404 is plugged into the upper surface of the detector 1403, the wire 1405 is plugged into one side of the turbidity meter 1404, the detection plate 1406 is plugged into the other end of the detection tube 1401, the camera 1407 is plugged into the detection plate 1406, and the fisheye lens 1408 is sleeved on one end of the camera 1407. During use, the detection rod 7 is used to adjust the detection plate 1406 and the fisheye lens 1408 is connected to the detection plate 1406. The ruler 6 is connected and placed at a certain distance. The distance is equal to the vertical distance of the lens relative to the light source during the experiment. In order to correct the distortion of the fisheye lens 1408, it is necessary to find the relationship between the pixel coordinates and the scale on the ruler through imaging, calculate the scattering angle corresponding to different scale values ​​on the ruler 6, and thus obtain the corresponding relationship between the pixel coordinates and the scattering angle. The scattering angle and pixel coordinates corresponding to each sample point are calculated, and the distortion of the fisheye lens 1408 is calibrated. The adjustment rod 7 is connected to the grayscale plate 5 and placed. By using the fisheye lens 1408 to shoot a uniformly illuminated grayscale plate 5 or a white wall, it is ensured that the lighting conditions in the entire lens field of view are uniform. After taking the photo, the data is read and the grayscale value of each pixel is obtained.The brightness information in the calibration image is extracted, and then a brightness calibration curve is established. The extracted brightness information is compared with the expected uniform brightness, and a brightness calibration curve is established to describe the brightness deviation at different positions. The accuracy and stability of the calibration effect are verified by photographing the uniform grayscale plate 5 or the white wall again and comparing the brightness distribution of the calibrated image. In this way, the uneven brightness problem in the imaging of the fisheye lens 1408 can be effectively corrected, and the imaging quality and accuracy can be improved. The light source that is neither uniform nor radially symmetrical is emitted by the diode 205 and the infrared transmitter 206. The light emitted by the light source is shaped and passed through the filter 202, thereby further filtering out stray light caused by dust and surface defects of the optical element, maintaining a smooth and generally circular Gaussian distribution. The processed light passes through the polarizer 208 and is scattered by the aerosol and collected by the fisheye lens 1408, thereby avoiding the cumbersome and time-consuming problem of using filtration to collect the aerosol, and at the same time avoiding the risk of changing the original properties or contaminating the sample. ,

[0035] like Figure 2 , Figure 4 and Figure 5As shown, one side of the upper surface of the equipment box 1 is rotatably connected to a detection box 8 through a hinge 101, and a hydraulic seat is provided at the bottom of the detection box 8. The hydraulic seat of the detection box 8 fixes the detection hydraulic machine 9 to prevent the detection hydraulic machine from loosening during movement. The detection hydraulic machine 9 is plugged into the detection box 8, and a detection hydraulic rod 10 is sleeved at one end of the detection hydraulic machine 9. One end of the detection hydraulic rod 10 is fixedly connected to a motor seat 11, and a detection motor 12 is plugged into the upper surface of the motor seat 11. A detection shaft 13 is sleeved at one end of the detection motor 12, and a fixing cylinder is plugged into the upper surface of the detection shaft 13. The fixing cylinder of the detection shaft 13 fixes the detection assembly 14 to prevent it from falling, and the detection assembly 14 is plugged into the top of the detection shaft 13. Two equipment bolts 102 are provided inside the preparation box 1, and the measuring component 2 is fixed to the detection component 14 by the equipment bolts 102. A measuring threaded seat is provided on the surface of the measuring component 2, and a detection threaded seat is provided on the surface of the detection component 14. The measuring threaded seat and the detection threaded seat are adapted to each other. The detection component 14 includes a detection tube 1401, a detection frame 1402, a detector 1403, a turbidity meter 1404, a wire 1405, a detection plate 1406, a camera 1407, and a fisheye lens 1408. The detection frame 1402 is plugged into the interior of one end of the detection tube 1401, the detector 1403 is plugged into the bottom of the detection frame 1402, and the turbidity meter 1404 is plugged into the upper surface of the detector 1403. A wire 1405 is plugged into one side of the turbidity meter 1404, a detection plate 1406 is plugged into the other end of the detection tube 1401, a camera 1407 is plugged into the inside of the detection plate 1406, a fisheye lens 1408 is sleeved on one end of the camera 1407, a detection hole is opened on the inner wall of the detection tube 1401 near the detection frame 1402, the detection hole of the detection tube 1401 limits the detection frame 1402, a connecting seat is opened on the side of the camera 1407 near the turbidity meter 1404, the connecting seat of the camera 1407 is fixed to the wire 1405 to prevent it from falling off, the material of the detection tube 1401 is aluminum oxide, and during use, the detection hydraulic press 9 drives the detection hydraulic rod 10 to rise and fall, and the detection electric The machine 12 drives the detection shaft 13 to rotate, and the detection component 14 can adjust the height and direction through the detection hydraulic press 9 and the detection motor 12, so as to adjust to different environments and further reduce the influence of environmental stray light on the measurement results. The measurement component 2 is connected to the detection component 14, and the camera 1407 collects images through the fisheye lens 1408, and transmits them to the turbidity meter 1404 and the detector 1403 through the wire 1405 for detection. The interaction between aerosol particles in the atmosphere and the incident light causes the energy and polarization state of the incident light to change. The characteristic is called the scattering characteristic of aerosol particles. The research on its scattering characteristic and the detection results have a promoting effect on fields such as weather observation.

[0036] The light is collected by the fisheye lens 1408 and the camera 1407 is used for imaging. The light is transmitted to the turbidity meter 1404 and the detector 1403 through the wire 1405 for detection. The scattering of electromagnetic waves by spherical particles can be described by the Mie scattering theory of Maxwell's equations. When light shines on spherical particles, the dipoles in the particles interact with the electric field of the incident light wave to produce oscillations. The oscillating dipoles radiate electromagnetic energy in all directions. This secondary electromagnetic wave is the scattering of light by spherical particles.

[0037] Mie scattering theory is a rigorous solution based on the boundary conditions of Maxwell's equations for spherical particles, but in actual measurements, the measured particles are usually not standard spheres. Therefore, the equivalent spherical particle diameter is usually used to describe the size of aerosol particles. If the particles are spherical, the particle diameter is the measured diameter; otherwise, it is the equivalent particle diameter. According to Mie theory, the relationship between the electric field intensity component after scattering and the component before scattering is:

[0038]

[0039] Among them, the components with subscripts l and r are the quantities perpendicular and parallel to the scattering surface respectively. When the measured particle is spherical, S3 and S4 in the matrix are both zero, and the scattering result can be obtained by solving S1 and S2.

[0040] When describing the scattering characteristics of particles, the particle scale parameter is usually introduced, which is defined as the ratio of the circumference of the measured particle at the equivalent particle size to the incident wavelength:. Among them, is the wavelength of the incident light in the medium surrounding the particle, is the radius of the spherical particle, and the refractive index of the particle relative to the surrounding medium is m. When the plane polarized light with an intensity of I0 is incident on an isotropic spherical particle, the scattered light intensity is:

[0041]

[0042] Among them, is the azimuth angle, that is, the angle between the electric vector of the incident light and the scattering surface, is the scattering angle, and r is the distance from the scatterer to the measurement point; and respectively represent the scattered light intensity parallel and perpendicular to the scattering surface, which are proportional to the square of the corresponding amplitude function, that is. S1(θ) and S2(θ) are infinite series composed of Bessel function and Legendre function, and the expression is:

[0043]

[0044] Among them, an and bn are Mie coefficients, which are functions of the refractive index m and the radius a of the spherical particle; and and are related to the scattering angle.

[0045] According to the above formula, directly summing the amplitude function will involve infinite series, so it cannot be calculated directly. However, the modulus of an and bn will become very small when n is large, and it can be calculated by only considering the sum of the first N terms of the series. During the calculation process, attention should be paid to selecting an appropriate N so that the error in the calculation process is balanced with the time period. This paper obtains the value of N according to the empirical formula (4) given by Wiscombe.

[0046]

[0047] The light undergoes two attenuations and one scattering from the light source to the camera 1407. The attenuation of the monochromatic light beam propagating in the sample cell satisfies the Lambert-Beer law, and the scattering complies with the Mie theory.

[0048] Assuming that the incident light intensity is I0, after attenuation and scattering during the propagation process, the light intensity I finally received by the CCD camera is:

[0049]

[0050] Wherein, L01 is the distance the light travels before scattering, L02 is the distance the light travels to the CCD after scattering; is the polarization angle; and represents the range of scattering angles; V represents the volume of the scattering interval; and are the range of measured particle sizes.

[0051] According to formula (1), after setting the particle size range r1, r2, incident light intensity I0 and incident light wavelength λ, the scattered light intensity I finally received by camera 1407 is only related to the particle mass intermediate radius, scale distribution parameter K and particle number density N, and the remaining variables can be obtained by geometric relationships.

[0052] How this utility works:

[0053] During use, the calculation ruler 6 is connected to the debugging rod 7 and placed at a certain distance. The calculation ruler 6 is imaged by the detection component 14. The distance is equal to the vertical distance of the lens relative to the light source during the experiment. In order to correct the distortion of the fisheye lens 1408, it is necessary to find the relationship between the pixel coordinates and the scale on the ruler through imaging, and the scattering angles corresponding to different scale values ​​on the calculation ruler 6 are calculated. The debugging rod 7 is connected to the grayscale plate 5 and placed. By using the fisheye lens 1408 to shoot a uniformly illuminated grayscale plate 5 or a white wall, it is ensured that the lighting conditions in the entire lens field of view are uniform. After taking the photo, the data is read and the grayscale value of each pixel is obtained, and the brightness information in the calibration image is extracted. After that, a brightness calibration curve is established to compare the extracted brightness information with the expected uniform brightness, and a brightness calibration curve is established to describe the brightness deviation at different positions. By shooting the uniform grayscale plate 5 or the white wall again and comparing the brightness distribution of the calibrated image, the accuracy and stability of the calibration effect are verified. The uneven brightness problem in the imaging of the fisheye lens 1408 can be effectively corrected to improve the imaging quality and accuracy. Through the diode 205 and the infrared emission The detector 206 emits a light source that is neither uniform nor radially symmetrical. The light emitted by the light source is shaped and passed through the filter 202. The detection hydraulic machine 9 drives the detection hydraulic rod 10 to rise and fall, and the detection motor 12 drives the detection shaft 13 to rotate. The detection hydraulic machine 9 and the detection motor 12 enable the detection component 14 to adjust the height and direction. The measurement component 2 is connected to the detection component 14, and the camera 1407 collects the image through the fisheye lens 1408, and transmits the image to the turbidity meter 1404 and the detector 1403 through the wire 1405 for detection. The device performs The stray light caused by dust and surface defects of optical components is filtered out in one step, maintaining a smooth and generally circular Gaussian distribution, avoiding the tedious and time-consuming problem of using filtration to collect aerosols, while avoiding the risk of changing the original properties or contaminating the sample, so that it can be adjusted to different environments to further reduce the impact of environmental stray light on the measurement results. The interaction between aerosol particles in the atmosphere and incident light causes the energy and polarization state of the incident light to change. The characteristics of aerosol particles are called scattering characteristics. The research and detection results of their scattering characteristics have a promoting effect on fields such as weather observation.

[0054] The utility model provides a working principle.

[0055] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0056] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A turbidity meter based on a fisheye lens, characterized in that: It comprises an equipment box, wherein a measuring component and a debugging seat are sequentially inserted in the equipment box from front to back, and a battery is inserted in one side of the debugging seat; The inner wall of the equipment box is plugged with a grayscale plate, a calculation ruler, and a debugging rod in sequence from front to back. One side of the upper surface of the equipment box is rotatably connected to a detection box through a hinge, and a detection hydraulic press is plugged into the inside of the detection box. A detection hydraulic rod is sleeved on one end of the detection hydraulic press, a motor seat is fixedly connected to one end of the detection hydraulic rod, a detection motor is plugged into the upper surface of the motor seat, a detection shaft is sleeved on one end of the detection motor, and a detection assembly is plugged into the top of the detection shaft.

2. The turbidity meter based on fisheye lens according to claim 1, characterized in that: The measuring assembly comprises a measuring tube, a filter, a measuring board, a heat sink, a diode, an infrared emitter, a polarizing frame, a polarizer, and a measuring cover. The filter is plugged into the interior of the measuring tube, the measuring board is plugged into one end of the measuring tube, a heat sink, a diode, and an infrared emitter are sequentially plugged into one side of the measuring board from top to bottom, the polarizing frame is plugged into the other end of the measuring tube, the polarizer is plugged into the interior of the polarizing frame, and the measuring cover is plugged into one end of the measuring tube.

3. The turbidity meter based on fisheye lens according to claim 1, characterized in that: The detection assembly includes a detection tube, a detection frame, a detector, a turbidity meter, a wire, a detection plate, a camera, and a fisheye lens. The detection frame is plugged into the interior of one end of the detection tube, the detector is plugged into the bottom of the detection frame, the turbidity meter is plugged into the upper surface of the detector, a wire is plugged into one side of the turbidity meter, the other end of the detection tube is plugged into the detection plate, the interior of the detection plate is plugged into the camera, and one end of the camera is sleeved with a fisheye lens.

4. The turbidity meter based on fisheye lens according to claim 3, characterized in that: A connection seat is provided on one side of the camera close to the turbidity meter, and the connection seat of the camera is fixed to the wire to prevent it from falling off.

5. The turbidity meter based on fisheye lens according to claim 3, characterized in that: The inner wall of the detection tube close to the detection frame is provided with a detection hole, and the detection hole of the detection tube limits the detection frame.

6. The turbidimeter based on a fisheye lens according to claim 1, characterized in that: Two equipment bolts are provided inside the equipment box, and the measuring component is fixed to the detection component by the equipment bolts.

7. The turbidity meter based on fisheye lens according to claim 1, characterized in that: A fixing tube is inserted into the upper surface of the detection shaft, and the fixing tube of the detection shaft fixes the detection component to prevent it from falling.

8. The turbidimeter based on a fisheye lens according to claim 1, characterized in that: A grayscale threaded seat is provided on the lower surface of the grayscale board, and a debugging rod is threadedly penetrated through the grayscale threaded seat of the grayscale board.

9. The turbidity meter based on fisheye lens according to claim 2, characterized in that: The surface of the measuring board is provided with two fixing holes, one end of the diode and the infrared emitter is provided with a measuring block, and the fixing holes of the measuring board are used to fix the measuring blocks of the diode and the infrared emitter respectively.

10. The turbidimeter based on a fisheye lens according to claim 1, characterized in that: A hydraulic seat is provided at the bottom of the detection box, and the hydraulic seat of the detection box fixes the detection hydraulic press to prevent the detection hydraulic press from loosening during movement.

Images