Non-contact turbidity collecting and measuring device

Abstract

The utility model provides a non-contact turbidity collecting and measuring device, belongs to the technical field of liquid turbidity measurement, the non-contact turbidity collecting and measuring device comprises a detection device host, an optical fiber probe and an upper computer, the optical fiber probe comprises an optical fiber probe tube, the optical fiber probe tube internally comprises an optical fiber transmitting end and an optical fiber collecting end, and the optical fiber transmitting end is connected with the optical fiber collecting end. The detection device host is connected with the optical fiber probe through an optical fiber amplifier, the detection device host is in communication connection with the upper computer, one end of the optical fiber probe is provided with a transmitting surface, one side of the transmitting surface is provided with a reaction reagent bottle, one side of the reaction reagent bottle corresponds to the optical fiber transmitting end, and the other side of the reaction reagent bottle corresponds to the optical fiber probe. The other side of the optical fiber collecting end corresponds to the optical fiber collecting end, and the optical fiber collecting end is arranged on a fixed clamping seat; an optical fiber light source is arranged on the detection device host, and one end of the light source is connected with one end of the optical fiber transmitting end; one end of the optical fiber acquisition end is connected with the detection device host through the optical fiber amplifier; the device can avoid sample pollution to test liquid and is convenient to maintain.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid turbidity measurement, and in particular relates to a non-contact turbidity collection and measurement device. Background Art

[0002] Turbidity measurement is an important parameter in modern industry and scientific research, used to assess the level of suspended particles or turbidity in liquids.

[0003] Currently, most turbidity measurement methods rely on contact sensors, which must be directly immersed or brought into contact with the test liquid. This contact operation can lead to sample contamination, especially when handling sensitive or easily contaminated liquids, such as in the quality control of biopharmaceutical products. Furthermore, contact devices typically require regular cleaning and calibration to prevent accumulation of dirt on the sensor surface, which can affect measurement accuracy. This poses challenges such as sample contamination and inconvenient maintenance.

[0004] The presence of insoluble matter reduces the transparency of a liquid. Therefore, turbidity is not equivalent to suspended solids content. Suspended solids content is the weight of material in the water that can be retained by filter paper. Turbidity, on the other hand, is an optical effect that reflects the degree to which light is obstructed when passing through a water layer. This optical effect is related to the size and shape of particles. Practice has shown that turbidity has no correlation with the weight concentration of suspended solids. The higher the turbidity of water, the stronger the reflected and scattered light, while the weaker the transmitted light. Conversely, the lower the turbidity, the weaker the reflected and scattered light, while the stronger the transmitted light. Therefore, by measuring the change in the intensity of scattered and transmitted light, the turbidity of water can be determined. Utility Model Content

[0005] In view of this, the utility model provides a non-contact turbidity collection and measurement device, which can avoid sample contamination of the test liquid and is convenient for maintenance.

[0006] The utility model is achieved in this way:

[0007] The utility model provides a non-contact turbidity collection and measurement device, comprising a detection device host, an optical fiber probe and a host computer, wherein the optical fiber probe comprises an optical fiber probe tube, the optical fiber probe tube internally comprises an optical fiber emitting end and an optical fiber collecting end, the detection device host and the optical fiber probe are connected via an optical fiber amplifier, the detection device host and the host computer are communicatively connected, one end of the optical fiber probe tube is provided with an emitting surface, a reaction reagent bottle is installed on one side of the emitting surface, one side of the reaction reagent bottle corresponds to the optical fiber emitting end, and the other side corresponds to the optical fiber collecting end, and the optical fiber collecting end is provided on a fixed card seat.

[0008] The technical effects of the non-contact turbidity collection and measurement device provided by the utility model are as follows: by providing a detection device host, an optical fiber probe and a host computer, it is used to realize non-contact turbidity measurement of the liquid, enhance the safety of the measurement, avoid direct contact with harmful or corrosive substances, and thus protect the integrity of the operator and the sample; the optical fiber probe is used to illuminate the liquid to be tested in the reaction reagent bottle and receive light scattered by the liquid to be tested; by designing an optical fiber amplifier for connection to the optical fiber probe, it is used to convert the received optical signal into an electrical signal, and is connected to the host computer through the detection device host to realize the output of the collected measurement value.

[0009] On the basis of the above technical solution, the non-contact turbidity collection and measurement device of the present invention can also be improved as follows:

[0010] Wherein, a fiber optic light source is provided on the host of the detection device, and one end of the light source is connected to one end of the fiber optic transmitting end.

[0011] The beneficial effect of adopting the above-mentioned improvement scheme is as follows: a fiber optic light source is provided to output incident light through the fiber optic emission end.

[0012] Furthermore, one end of the optical fiber acquisition end is connected to the detection device host through the optical fiber amplifier. The detection device host is also provided with a NI data acquisition card and a power supply module. The material of the optical fiber probe is Hastelloy.

[0013] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by setting up an NI data acquisition card to transmit data to the host computer, the data is converted into a numerical value of a visual turbidity measurement unit after software processing; by setting up an optical fiber probe made of Hastelloy alloy, good corrosion resistance and thermal stability can be provided.

[0014] Furthermore, the detection device host is provided with a USB connection interface for connecting to the corresponding interface of the host computer via a USB connection line.

[0015] Furthermore, the detection device host and the optical fiber probe are adjustably and movably connected to the detection platform via a movable seat, and the detection platform is fixedly connected to the fixed holder.

[0016] Furthermore, a slide groove is provided on the detection platform, a forward and reverse motor is provided at one end of the slide groove, and a lead screw is movably provided inside the slide groove.

[0017] The beneficial effect of adopting the above-mentioned improvement scheme is: by setting a movable seat to cooperate with the screw rod to adjust the position of the detection device main unit and the optical fiber probe, one end of its emitting surface can maintain a measuring distance with the reaction reagent bottle and the optical fiber collection end, making the measurement more stable and accurate.

[0018] Furthermore, one end of the screw rod is fixedly connected to the output shaft of the forward and reverse motor, and the other end is movably connected to the inner wall of one end of the slide groove through a coupling seat.

[0019] The beneficial effect of adopting the above-mentioned improvement scheme is: the forward and reverse rotation of the motor is used to drive the screw rod to rotate in the slide groove, thereby realizing the linear displacement of the movable seat.

[0020] Furthermore, a slider is provided at the bottom of the movable seat, a through hole is provided on the slider, a threaded structure adapted to the screw rod is provided inside the through hole, and the movable seat is movably connected to the screw rod through the slider.

[0021] Furthermore, limiting sliding grooves are provided on both side walls of the sliding groove, and guide blocks are provided on both sides of the sliding block, and the guide blocks are slidably connected to the limiting sliding grooves.

[0022] The beneficial effect of adopting the above-mentioned improvement scheme is: by setting the limiting slide groove and the guide block, it is used to play a guiding role when the screw rod rotates to drive the movable seat to move, making the movement more stable.

[0023] Furthermore, the main body of the detection device and the bottom end of the optical fiber probe are respectively fixedly connected to the top end of the movable seat, and clamps are provided on both sides of the movable seat close to the emitting surface, and clamps are also provided on both sides of the fixed clamping seat. A tough pressing plate is provided on the clamp on the side of the emitting surface, and one end of the tough pressing plate is connected to the pressure sensor.

[0024] The beneficial effects of adopting the above-mentioned improved scheme are: by arranging clamps on both sides to fix the reaction reagent bottle, and being able to contact the reaction reagent bottle by means of the tough pressing sheet, the movement of the movable seat is stopped by sensing through the pressure sensor, and it can also adapt to and fix reaction reagent bottles of different sizes.

[0025] Compared with the prior art, the beneficial effects of the non-contact turbidity collection and measurement device provided by the utility model are as follows: by setting a detection device host, an optical fiber probe and a host computer, it is used to realize contactless turbidity measurement of the liquid, enhance the safety of the measurement, avoid direct contact with harmful or corrosive substances, and thus protect the integrity of the operator and the sample; the optical fiber probe is used to irradiate the liquid to be tested in the reaction reagent bottle and receive light scattered by the liquid to be tested; by designing an optical fiber amplifier to be connected to the optical fiber probe, it is used to convert the received optical signal into an electrical signal, and connect it to the host computer through the detection device host to realize the output of the collected measurement value; by setting an NI data acquisition card to transmit data to the host computer and convert it into a visual turbidity measurement unit after software processing; by setting the optical fiber probe made of Hastelloy alloy, it can provide good corrosion resistance and thermal stability; by setting a movable seat to cooperate with the screw rod to adjust the position of the detection device host and the optical fiber probe, so that one end of its emitting surface can maintain a measurement distance with the reaction reagent bottle and the optical fiber collection end, making the measurement more stable and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0027] Figure 1 This is a structural diagram of a non-contact turbidity collection and measurement device;

[0028] Figure 2 A schematic diagram of a fiber optic probe for a non-contact turbidity collection and measurement device;

[0029] Figure 3 A schematic diagram of a tough tablet for a non-contact turbidity collection and measurement device;

[0030] Figure 4 A schematic side view of a tough pressed tablet of a non-contact turbidity collection and measurement device;

[0031] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0032] 10. Detection device host; 11. Fiber optic probe; 12. Host computer; 13. Fiber optic probe tube; 14. Fiber optic emitting end; 15. Fiber optic collection end; 16. Fiber optic amplifier; 17. Emitting surface; 19. Reaction reagent bottle; 20. Movable seat; 21. Detection platform; 22. Fixed holder; 23. Slide; 24. Forward and reverse motor; 25. Screw; 26. Clamp; 27. Tough pressing piece; 28. Pressure sensor. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0034] like Figure 1-4 As shown, an embodiment of a non-contact turbidity collection and measurement device provided by the present invention is shown. In this embodiment, it includes a detection device host 10, a fiber optic probe 11 and a host computer 12, wherein the fiber optic probe 11 includes a fiber optic probe tube 13, and the fiber optic probe tube 13 includes a fiber optic emitting end 14 and a fiber optic collection end 15. The detection device host 10 and the fiber optic probe 11 are connected through a fiber optic amplifier 16, and the detection device host 10 is communicatively connected to the host computer 12. An emitting surface 17 is provided at one end of the fiber optic probe tube 13, and a reaction reagent bottle 19 is installed on one side of the emitting surface 17. One side of the reaction reagent bottle 19 corresponds to the fiber optic emitting end 14, and the other side corresponds to the fiber optic collection end 15. The fiber optic collection end 15 is provided on a fixed card seat 22.

[0035] Among them, the optical fiber probe 13 includes two sections, one of which has an optical fiber emitting end 14 inside and an optical fiber collecting end 15 inside. When in use, incident light is emitted by the optical fiber light source of the detection device host 10. After the incident light is transmitted through the optical fiber emitting end 14, it is emitted through the emitting surface 17, passes through the reaction reagent bottle 19 and hits the suspension inside, and then is collected by the detection device host 10 through the optical fiber collecting end 15. The detection device host 10 detects the returned light signal, amplifies it through the optical fiber amplifier 16 and converts it into an electrical signal, and transmits the data to the host computer 12 through the NI data acquisition card. After software processing, it is converted into a value of a visual turbidity measurement unit.

[0036] In the above technical solution, a fiber optic light source is provided on the main body 10 of the detection device, and one end of the light source is connected to one end of the fiber optic transmitting end 14 .

[0037] Furthermore, in the above technical solution, one end of the optical fiber acquisition end 15 is connected to the detection device host 10 through the optical fiber amplifier 16. The detection device host 10 is also provided with a NI data acquisition card and a power module. The material of the optical fiber probe 13 is Hastelloy.

[0038] Furthermore, in the above technical solution, a USB connection interface is provided on the host computer 10 of the detection device, which is used to connect to the corresponding interface of the host computer 12 via a USB connection line.

[0039] The host computer 12 is a computer including a data processing unit, which is used to receive the electrical signal from the optical fiber amplifier 16 and display and record the measured turbidity value in real time based on LabVIEW software.

[0040] Furthermore, in the above technical solution, the detection device main body 10 and the optical fiber probe 11 are adjustably and movably connected to the detection platform 21 via the movable seat 20 , and the detection platform 21 is fixedly connected to the fixed holder 22 .

[0041] Furthermore, in the above technical solution, a slide groove 23 is provided on the detection platform 21 , a forward and reverse motor 24 is provided at one end of the slide groove 23 , and a screw rod 25 is movably provided inside the slide groove 23 .

[0042] Furthermore, in the above technical solution, one end of the screw rod 25 is fixedly connected to the output shaft of the forward and reverse motor 24 , and the other end is movably connected to the inner wall of one end of the slide groove 23 through the coupling seat.

[0043] Furthermore, in the above technical solution, a slider is provided at the bottom of the movable seat 20, a through hole is opened on the slider, a threaded structure adapted to the screw rod 25 is provided inside the through hole, and the movable seat 20 is movably connected to the screw rod 25 through the slider.

[0044] Furthermore, in the above technical solution, limiting sliding grooves are provided on both side walls of the sliding groove 23, and guide blocks are provided on both sides of the slider, and the guide blocks are slidably connected to the limiting sliding grooves.

[0045] Furthermore, in the above technical solution, the bottom ends of the detection device main unit 10 and the optical fiber probe 11 are respectively fixedly connected to the top of the movable seat 20, and the movable seat 20 is provided with clamps 26 on both sides close to the emitting surface 17, and clamps 26 are also provided on both sides of the fixed clamping seat 22. A tough pressing piece 27 is provided on the clamp 26 on one side of the emitting surface 17, and one end of the tough pressing piece 27 is connected to the pressure sensor 28.

[0046] The pressure sensor 28 is electrically connected to the alarm, and the alarm is provided on the detection device host 10 .

[0047] During use, the position of the detection device main unit 10 and the optical fiber probe 11 on the movable seat 20 can be adjusted by turning on the forward and reverse motors 24, so that the optical fiber emitting ends 14 and the optical fiber collecting ends 15 on both sides maintain a corresponding measuring distance, and the reaction reagent bottle 19 is fixed by means of the clamps on both sides, and the contact between the tough pressing piece 27 and the reaction reagent bottle 19 can cooperate with the pressure sensor 28 to issue an alarm through the alarm device, and the forward and reverse motors 24 are turned off to stop the movement of the movable seat 20 to avoid excessive pressure on the reaction reagent bottle 19.

[0048] Specifically, the principle of the present invention is as follows: when in use, incident light is emitted by the optical fiber light source of the detection device host 10, and the incident light is transmitted through the optical fiber transmitting end 14, and then emitted through the transmitting surface 17, passes through the reaction reagent bottle 19 and hits the suspension inside, and then irradiates

[18] to generate reflected light, and the reflected light returns to the detection device host 10 through the optical fiber collecting end 15, and the detection device host 10 detects the returned light signal, amplifies it through the optical fiber amplifier 16 and converts it into an electrical signal, and transmits the data to the host computer 12 through the NI data acquisition card, and converts it into a value of a visual turbidity measurement unit after software processing.

Claims

1. A non-contact turbidity collection and measurement device, comprising a detection device host (10), an optical fiber probe (11) and a host computer (12), characterized in that: The optical fiber probe (11) includes an optical fiber probe tube (13), and the optical fiber probe tube (13) includes an optical fiber emitting end (14) and an optical fiber collecting end (15). The detection device host (10) is connected to the optical fiber probe (11) via an optical fiber amplifier (16). The detection device host (10) is communicatively connected to the host computer (12). One end of the optical fiber probe tube (13) is provided with an emitting surface (17), and a reaction reagent bottle (19) is installed on one side of the emitting surface (17). One side of the reaction reagent bottle (19) corresponds to the optical fiber emitting end (14), and the other side corresponds to the optical fiber collecting end (15). The optical fiber collecting end (15) is provided on a fixed card seat (22).

2. The non-contact turbidity collection and measurement device according to claim 1, characterized in that: The detection device host (10) is provided with an optical fiber light source, one end of the light source is connected to one end of the optical fiber transmitting end (14).

3. The non-contact turbidity collection and measurement device according to claim 2, characterized in that: One end of the optical fiber acquisition end (15) is connected to the detection device host (10) via the optical fiber amplifier (16); an NI data acquisition card and a power supply module are also provided inside the detection device host (10); and the optical fiber probe (13) is made of Hastelloy.

4. The non-contact turbidity collection and measurement device according to claim 3, characterized in that: The detection device host (10) is provided with a USB connection interface for connecting to the corresponding interface of the host computer (12) via a USB connection line.

5. The non-contact turbidity collection and measurement device according to claim 4, characterized in that: The detection device host (10) and the optical fiber probe (11) are adjustably and movably connected to a detection platform (21) via a movable seat (20), and the detection platform (21) is fixedly connected to the fixed seat (22).

6. The non-contact turbidity collection and measurement device according to claim 5, characterized in that: A slide groove (23) is provided on the detection platform (21), a forward and reverse motor (24) is provided at one end of the slide groove (23), and a screw rod (25) is movably provided inside the slide groove (23).

7. The non-contact turbidity collection and measurement device according to claim 6, characterized in that: One end of the screw rod (25) is fixedly connected to the output shaft of the forward and reverse motor (24), and the other end is movably connected to the inner wall of one end of the slide groove (23) through a coupling seat.

8. The non-contact turbidity collection and measurement device according to claim 7, characterized in that: A slider is provided at the bottom of the movable seat (20), a through hole is provided on the slider, a threaded structure adapted to the screw rod (25) is provided inside the through hole, and the movable seat (20) is movably connected to the screw rod (25) through the slider.

9. The non-contact turbidity collection and measurement device according to claim 8, characterized in that: The side walls of the slide groove (23) are provided with limited slide grooves, and guide blocks are provided on both sides of the slider, and the guide blocks are slidably connected with the limited slide grooves.

10. The non-contact turbidity collection and measurement device according to claim 9, characterized in that: The bottom ends of the detection device main unit (10) and the optical fiber probe (11) are respectively fixedly connected to the top end of the movable seat (20); clamps (26) are provided on both sides of the movable seat (20) close to the emitting surface (17); clamps (26) are also provided on both sides of the fixed clamping seat (22); a tough pressing piece (27) is provided on the clamp (26) on one side of the emitting surface (17); one end of the tough pressing piece (27) is connected to a pressure sensor (28).

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