Turbidity light source detection apparatus

Abstract

A turbidity light source detection apparatus. A photovoltaic cell (2) is provided on a positioning block (1); the photovoltaic cell (2) is L-shaped; a reflection baffle (4) is provided at a notch; the reflection baffle (4) is connected to a rotating motor (3); a light emitter (23) is provided on an inner side surface, at the notch, of the photovoltaic cell (2); a second light receiver (27) is provided at the bottom, at the notch, of the photovoltaic cell (2); a first light receiver (5) is provided directly facing the light emitter (23); when the rotating motor (3) drives the reflection baffle (4) to be in a horizontal plane, the light emitter (23) directly irradiates the first light receiver (5); when the rotating motor (3) drives the reflection baffle (4) to intersect with the horizontal plane by 45 degrees, axes of the light emitter (23) and the second light receiver (27) intersect at the reflection baffle (4); a controller (7) is separately connected to the rotating motor (3), a light-emitting controller (8), and a signal collector (9); the signal collector (9) is separately connected to the first light receiver (5) and the light emitter (23); and the light-emitting controller (8) is connected to the light emitter (23). The turbidity light source detection apparatus can improve the product identity, improves the detection accuracy, and detects a specific damaged part of the photovoltaic cell (2).

Description

Turbidity light source detection device Technical Field

[0001] The present invention relates to the technical field of water quality detection equipment, in particular to a turbidity light source detection device capable of improving product identity, improving accuracy and detecting specific damaged parts of a photocell. Background Art

[0002] Turbidity refers to the degree of obstruction to the passage of light through a solution. It includes light scattering by suspended matter and absorption by solute molecules. Water turbidity is related not only to the content of suspended matter in the water, but also to its size, shape, and refractive index. Turbidity refers to the degree of cloudiness in water, an optical effect caused by the presence of suspended matter (including colloids). It is expressed in NTUs (units of unit). Turbidity is one of the key visual indicators of water contamination. The standard unit of turbidity is 1 degree of turbidity, defined as 1 mg of SiO2. Turbidity refers to the degree of obstruction to light transmission caused by suspended matter in water, often referred to as clarity. Generally, the higher the turbidity, the more turbid the solution. According to the national standard GB5749-2006, "Sanitary Standard for Drinking Water," the limit for total dissolved solids (TDS) in tap water is ≤3 degrees. Suspended matter and colloids such as mud, silt, fine organic matter, inorganic matter, plankton, etc. in water can make the water turbid and present a certain turbidity.

[0003] The 90-degree scattering method is a commonly used method for measuring solution turbidity. It is based on the scattering phenomenon described by the Lorentz-Boltzmann equation. This method uses a photometer or photometer to measure the intensity of light passing through the sample and the intensity of light scattered by the sample at a 90-degree angle. The turbidity of the sample is calculated based on the measured values. The scattering theorem used in this method is the Beer-Lambert Law. This theorem states that for a uniformly radiated plane wave, the electro-optical response per unit length decreases exponentially with the optical path length, a principle known as the classic Beer-Lambert Law. In other words, light directed toward particles suspended in a solution undergoes multiple scattering, with some light being scattered at 90-degree angles. Using this method, the measuring instrument measures the ratio of the intensity of light scattered at a 90-degree angle by the solid particles in the suspension to the intensity of the light that passed through the sample without being scattered. As the concentration of particles in the suspension increases, the intensity of the scattered light also increases, and the ratio increases accordingly. Therefore, the magnitude of this ratio is directly proportional to the number of particles in the suspension. In practice, a light source is introduced perpendicularly into the sample, and the sample is placed at a 90-degree scattering angle. A photometer or photometer is used to measure the intensity of the light directly measured without passing through the sample, as well as the intensity of the 90-degree scattered light generated by the sample. Combined with colorimetric calculation or photometry, the turbidity of the sample can be determined. This method is highly accurate and widely used for turbidity measurement in water, sewage, food, medicine, and environmental fields.

[0004] A photocell for making a turbidity light source is provided with a fixed card block, a light emitter, a first circuit board, a first waterproof light-transmitting plate, a second circuit board, a light receiver, and a second waterproof light-transmitting plate in the photocell block of the photocell. Position errors are inevitable at the connection points, which makes it impossible for the light emitter and the light receiver to intersect in space, and ultimately weakens the intensity of the light signal, resulting in a large error, which seriously affects the accuracy of turbidity detection. The deviation in light signal intensity of photocells in the same batch reduces the identity, which is not conducive to product quality. When a photocell is damaged, it is not possible to confirm which of the light emitter and the light receiver is damaged. It is also necessary to detect whether the light emitter and the light receiver are normal and quickly find the damaged parts. There is a need for a turbidity light source detection device that improves product identity, improves accuracy, and detects specific damaged parts of photocells.

[0005] Summary of the Invention

[0006] The object of the present invention is to provide a turbidity light source detection device which can improve product identity, improve accuracy and detect specific damaged parts of photocells.

[0007] A turbidity light source detection device, characterized by comprising:

[0008] A photocell is placed on a positioning block, the photocell is L-shaped, a reflective baffle is provided at the notch, the reflective baffle is connected to a rotating motor, a light emitter is provided on the inner side of the notch of the photocell, a second light receiver is provided at the bottom of the notch of the photocell, a first light receiver is provided directly opposite the light emitter, when the reflective baffle is driven by the rotating motor to be in a horizontal plane, the light emitter is directly projected onto the first light receiver, and when the reflective baffle is driven by the rotating motor to intersect the horizontal plane at 45 degrees, the axes of the light emitter and the second light receiver intersect with the reflective baffle;

[0009] A controller, the controller being connected to the rotating motor, the light emission controller, and the signal collector respectively, the signal collector being connected to the first light receiver and the light emitter respectively, and the light emission controller being connected to the light emitter;

[0010] The controller controls the rotating motor to drive the reflective baffle to a horizontal position. At this time, the light transmitter is facing the first light receiver. The first light receiver receives the light emitted by the light transmitter and converts the light signal into an electrical signal. The intensity of the emitted light signal is compared with the intensity of the received light signal to determine whether the light transmitter is horizontally set, whether the light transmitter is offset, and whether the light transmitter needs to reinstall the photocell.

[0011] The controller controls the rotating motor to drive the reflective baffle to a position at a 45-degree angle to the horizontal position. At this time, the light signal emitted by the optical transmitter is reflected by the reflective baffle and then illuminates the second optical receiver. The intensity of the transmitted light signal is compared with the intensity of the received light signal to determine the reception effect of the second optical receiver and to test the receiver.

[0012] The outside of the photocell is a photocell block, and the photocell block is respectively provided with a light emitter port and a light receiver port, and the bottom is hollow. A fixed card block, a light emitter, a first circuit board, a first waterproof light-transmitting plate, a second circuit board, a second light receiver, and a second waterproof light-transmitting plate are provided in the hollow part inside the photocell. The light emitter port is provided with a first waterproof light-transmitting plate, and is directly opposite to the light emitter. The light receiver port is provided with a second waterproof light-transmitting plate, and is directly opposite to the second light receiver. The light emitter is clamped in the fixed card block and connected to the first circuit board. The second light receiver is connected to the second circuit board. The second circuit board is respectively arranged perpendicular to the light emitter and the first circuit board.

[0013] The optical transmission controller is connected to the first circuit board and the optical transmitter in sequence, and the signal collector is connected to the second circuit board and the second optical receiver in sequence;

[0014] A baffle rotating shaft is provided on one side of the reflective baffle, and the baffle rotating shaft extends out of both ends of the reflective baffle respectively. The baffle rotating shaft (both ends are respectively provided on a first bearing and a second bearing, and the two ends of the baffle rotating shaft are respectively connected to a rotating motor and an encoder.

[0015] Light shields are arranged outside the positioning block, the photocell, the rotating motor, the reflective baffle and the first light receiver.

[0016] The encoder is connected to the controller.

[0017] The intersection angle between the reflective baffle and the horizontal plane is 0 to 90 degrees.

[0018] The reflective baffle is a plane with a reflective surface.

[0019] The positioning block is L-shaped and matches the photocell.

[0020] The photocell of the present invention is placed on a positioning block, the photocell is L-shaped, a reflective baffle is provided at the notch, the reflective baffle is connected to a rotating motor, a light emitter is provided on the inner side of the notch of the photocell, a second light receiver is provided at the bottom of the notch of the photocell, and a first light receiver is provided opposite the light emitter. When the rotating motor drives the reflective baffle to be in a horizontal plane, the light emitter directly projects on the first light receiver. When the rotating motor drives the reflective baffle to intersect the horizontal plane at 45 degrees, the axes of the light emitter and the second light receiver intersect with the reflective baffle; the controller is respectively connected to the rotating motor, the light emission controller, and the signal collector, the signal collector is respectively connected to the first light receiver and the light emitter, and the light emission controller is connected to the light emitter; the present invention improves product identity, improves accuracy, and detects specific damaged parts of the photocell. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a schematic diagram of a light source direct detection at a photocell transmitting end according to the present invention;

[0022] FIG2 is a schematic diagram of the refraction detection of the light source at the transmitting end of the photocell of the present invention;

[0023] FIG3 is a schematic structural diagram of a rotating motor and a reflective baffle according to the present invention;

[0024] FIG4 is a schematic structural diagram of a photovoltaic cell according to the present invention;

[0025] FIG5 is a control relationship diagram of the present invention;

[0026] In the figure: 1. positioning block, 2. photocell, 3. rotating motor, 4. reflecting baffle, 5. detection light receiver, 6. light shield, 7. controller, 8. light emission controller, 9. signal collector, 10. baffle rotating shaft, 11. first bearing, 12. second bearing, 13. encoder, 21. photocell block, 22. fixing block, 23. light transmitter, 24. first circuit board, 25. first waterproof light-transmitting plate, 26. second circuit board, 27. light receiver, 28. second waterproof light-transmitting plate. DETAILED DESCRIPTION

[0027] The present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0028] A turbidity light source detection device includes: a photocell 2, which is placed on a positioning block 1, the photocell 2 is L-shaped, a reflective baffle 4 is provided at the notch, the reflective baffle 4 is connected to a rotating motor 3, a light emitter 23 is provided on the inner side of the notch of the photocell 2, a second light receiver 27 is provided at the bottom of the notch of the photocell 2, a first light receiver 5 is provided opposite the light emitter 23, when the rotating motor 3 drives the reflective baffle 4 to be in a horizontal plane, the light emitter 23 directly projects on the first light receiver 5, when the rotating motor 3 drives the reflective baffle 4 to intersect the horizontal plane at 45 degrees, the axes of the light emitter 23 and the second light receiver 27 intersect with the reflective baffle 4; a controller 7, the controller 7 is respectively connected to the rotating motor 3, the light emission controller 8, and the signal collector 9, the signal collector 9 is respectively connected to the first light receiver 5 and the light emitter 23, and the light emission controller 8 is connected to the light emitter 23.

[0029] The exterior of the photocell 2 is a photocell block 21, which has a light emitter port and a light receiver port, and a hollow bottom. Inside the hollow interior of the photocell 2 are a fixed block 22, a light emitter 23, a first circuit board 24, a first waterproof light-transmitting plate 25, a second circuit board 26, a second light receiver 27, and a second waterproof light-transmitting plate 28. The light emitter port is provided with the first waterproof light-transmitting plate 25, facing the light emitter 23, while the light receiver port is provided with the second waterproof light-transmitting plate 28, facing the second light receiver 27. The light emitter 23 is secured within the fixed block 22 and connected to the first circuit board 24. The second light receiver 27 is connected to the second circuit board 26, which is positioned perpendicular to the light emitter 23 and the first circuit board 24, respectively. The optical transmission controller 8 is connected sequentially to the first circuit board 24 and the light emitter 23, while the signal collector 9 is connected sequentially to the second circuit board 26 and the second light receiver 27.

[0030] A light shield 6 is provided outside the positioning block 1, photocell 2, rotating motor 3, reflective baffle 4, and first light receiver 5. A baffle rotating shaft 10 is provided on one side of the reflective baffle 4, extending from both ends of the reflective baffle 4. The ends of the baffle rotating shaft 10 are respectively mounted on a first bearing 11 and a second bearing 12. The ends of the baffle rotating shaft 10 are respectively connected to the rotating motor 3 and an encoder 13. The encoder 13 is connected to a controller 7. The reflective baffle 4 intersects the horizontal plane at an angle of 0 to 90 degrees. The reflective baffle 4 is a flat surface with a reflective surface. The positioning block 1 is L-shaped and cooperates with the photocell 2.

[0031] The photovoltaic cell block 21 of the photovoltaic cell 2 is built into a fixed block 22, a light emitter 23, a first circuit board 24, a first waterproof light-transmitting plate 25, a second circuit board 26, a second light receiver 27, and a second waterproof light-transmitting plate 28. The light emitter 23 is placed in the fixed block 22 and soldered to the first circuit board 24. The first circuit board 24 provides the control signal circuit and power supply for the light emitter 23. The second light receiver 27 is soldered to the second circuit board 26. The second circuit board 26 provides the receiving signal circuit and power supply for the second light receiver 27. The first waterproof light-transmitting plate 25 is located at the light emitter port, facing the light emitter 23. The second waterproof light-transmitting plate 28 is located at the light receiver port, facing the second light receiver 27. The first waterproof light-transmitting plate 25 and the second waterproof light-transmitting plate 28 respectively serve as light transmission and sealing functions.

[0032] When in use, the photocell 2 is placed on the positioning block 1 so that the positions of the positioning block 1 , the photocell 2 , the reflective baffle 4 and the first light receiver 5 are determined.

[0033] The controller 7 controls the rotating motor 3 to drive the reflective baffle 4 to a horizontal position. At this time, the light emitter 23 is facing the first light receiver 5. The first light receiver 5 receives the light emitted by the light emitter 23 and converts the light signal into an electrical signal. Based on the comparison of the intensity of the emitted light signal and the intensity of the received light signal, it is determined whether the light emitter 23 is set horizontally, whether the light emitter 23 is offset, and whether the light emitter 23 needs to reinstall the photocell 2.

[0034] Controller 7 controls motor 3 to rotate reflective baffle 4 to a 45-degree angle relative to the horizontal. The light signal emitted by light transmitter 23 is reflected by reflective baffle 4 and then illuminates second light receiver 27. The intensity of the transmitted light signal is compared with the intensity of the received light signal to determine the reception quality of second light receiver 27 and to test receiver 27.

[0035] The controller 7 controls the rotating motor 3 to drive the reflective baffle 4 to rotate at an angle of 0 to 90 degrees from the horizontal position. During the rotation process, the effects of the light emitter 23 and the receiver 27 are detected.

[0036] The ends of the reflective baffle 4 are respectively mounted on a first bearing 11 and a second bearing 12 via a baffle rotating shaft 10. The ends of the baffle rotating shaft 10 are respectively connected to a rotary motor 3 and an encoder 13. A controller 7 controls the speed, forward and reverse rotation, and rotation angle of the rotary motor 3. The encoder 13 monitors the rotation angle of the reflective baffle 4 and provides feedback to the controller 7, thereby controlling the rotation angle of the reflective baffle 4.

[0037] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A turbidity light source detection device, characterized in that: include: A photocell (2), the photocell (2) being placed on a positioning block (1), the photocell (2) being L-shaped, a reflective baffle (4) being arranged at a notch, the reflective baffle (4) being connected to a rotating motor (3), a light emitter (23) being arranged on the inner side surface of the notch of the photocell (2), a second light receiver (27) being arranged at the bottom of the notch of the photocell (2), a first light receiver (5) being arranged directly opposite the light emitter (23), when the rotating motor (3) drives the reflective baffle (4) to be in a horizontal plane, the light emitter (23) directly projects onto the first light receiver (5), and when the rotating motor (3) drives the reflective baffle (4) to intersect the horizontal plane at 45 degrees, the axes of the light emitter (23) and the second light receiver (27) intersect at the reflective baffle (4); A controller (7), wherein the controller (7) is respectively connected to the rotating motor (3), the light emission controller (8), and the signal collector (9), wherein the signal collector (9) is respectively connected to the first light receiver (5) and the light emitter (23), and the light emission controller (8) is connected to the light emitter (23); The controller (7) controls the rotating motor (3) to drive the reflective baffle (4) to be in a horizontal position, at which time the light transmitter (23) is facing the first light receiver (5), the first light receiver (5) receives the light emitted by the light transmitter (23), converts the light signal into an electrical signal, and compares the intensity of the emitted light signal with the intensity of the received light signal to determine whether the light transmitter (23) is horizontally arranged, whether the light transmitter (23) is offset, and whether the light transmitter (23) needs to reinstall the photocell (2); The controller (7) controls the rotating motor (3) to drive the reflective baffle (4) to be at an angle of 45 degrees to the horizontal position. At this time, the light signal emitted by the light transmitter (23) is reflected by the reflective baffle (4) and then irradiated to the second light receiver (27). The intensity of the emitted light signal is compared with the intensity of the received light signal to determine the receiving effect of the second light receiver (27), and the receiver (27) is inspected; The photocell (2) is externally provided with a photocell block (21). The photocell block (21) is provided with a light transmitter port and a light receiver port respectively, and is hollow at the bottom. A fixed card block (22), a light transmitter (23), a first circuit board (24), a first waterproof light-transmitting plate (25), a second circuit board (26), a second light receiver (27), and a second waterproof light-transmitting plate (28) are provided in the hollow part inside the photocell (2). The light transmitter port is provided with a first waterproof light-transmitting plate (25) and is directly opposite to the light transmitter (23). The light receiver port is provided with a second waterproof light-transmitting plate (28) and is directly opposite to the second light receiver (27). The light transmitter (23) is clamped in the fixed card block (22) and is connected to the first circuit board (24). The second light receiver (28) is connected to the first circuit board (24). The device (27) is connected to a second circuit board (26), and the second circuit board (26) is respectively arranged perpendicular to the light emitter (23) and the first circuit board (24); The optical emission controller (8) is sequentially connected to the first circuit board (24) and the optical transmitter (23), and the signal collector (9) is sequentially connected to the second circuit board (26) and the second optical receiver (27); A baffle rotating shaft (10) is arranged on one side of the reflective baffle (4), and the baffle rotating shaft (10) extends out of two ends of the reflective baffle (4), and the two ends of the baffle rotating shaft (10) are respectively arranged on a first bearing (11) and a second bearing (12), and the two ends of the baffle rotating shaft (10) are respectively connected to a rotating motor (3) and an encoder (13).

2. A turbidity light source detection device according to claim 1, characterized in that: A light shield (6) is arranged outside the positioning block (1), the photocell (2), the rotating motor (3), the reflective baffle (4) and the first light receiver (5).

3. A turbidity light source detection device according to claim 1, characterized in that: The encoder (13) is connected to the controller (7).

4. A turbidity light source detection device according to claim 1, characterized in that: The intersection angle between the reflection baffle (4) and the horizontal plane is 0 to 90 degrees.

5. The turbidity light source detection device according to claim 1, characterized in that: The reflective baffle (4) is a plane having a reflective surface.

6. A turbidity light source detection device according to claim 1, characterized in that: The positioning block (1) is L-shaped and cooperates with the photocell (2).

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