Miniaturized full-spectrum light source optical nitrate nitrogen sensor

Abstract

The utility model provides a miniaturized full-spectrum light source optical nitrate nitrogen sensor which solves the problems that traditional equipment is large in size and high in cost. A miniaturized full-spectrum light source optical nitrate nitrogen sensor comprises an emitter and a receiver which are oppositely arranged, and a detection space is formed between the emitter and the receiver; the bottom of the transmitter is provided with a transmitting boss of which the cross section area is smaller than that of the end face of the transmitter, the top of the receiver is provided with a receiving boss of which the cross section area is smaller than that of the end face of the receiver, and a sample window is arranged between the transmitting boss and the receiving boss; a full-spectrum light source is arranged in the emitter, and a processor for processing transmission light passing through a sample in the sample window is arranged in the receiver. The small-size sensor can be widely applied to on-site rapid detection and real-time monitoring, the boss is arranged to enhance the circulation of water, and the area of a test surface is reduced, so that the concentration of light rays is facilitated, and the utilization rate of light and the measurement sensitivity are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to environmental monitoring field technical field, concretely relates to a miniaturized full spectrum light source optical nitrate nitrogen sensor. BACKGROUND

[0002] The full spectrum light source optical nitrate nitrogen sensor belongs to the technical field of environmental monitoring and water quality analysis. It is an advanced optical sensor designed specifically for measuring the concentration of nitrate nitrogen (NO3-N) in water. This sensor quantitatively analyzes the content of nitrate nitrogen by measuring the absorption of specific wavelength light by the water sample. Its working principle is based on the Beer-Lambert Law, which states that the absorption of light by a substance is directly proportional to its concentration.

[0003] The full spectrum sensor is characterized by covering the ultraviolet-visible light spectrum range of 200-550nm, and by using wide spectrum scanning and artificial intelligence (AI) algorithms to improve the accuracy and reliability of the measurement. The application of this technology enables the sensor to more accurately identify and measure the concentration of nitrate nitrogen in water, while reducing interference caused by other substances.

[0004] In traditional chemical analysis methods, monitoring equipment is often large in size, high in manufacturing cost, inconvenient to transport, and complex to operate. These devices are usually used in laboratory environments, limiting their application in on-site rapid detection and real-time monitoring. SUMMARY

[0005] The utility model provides a miniaturized full spectrum light source optical nitrate nitrogen sensor, aims at solving the problems of large equipment size and high cost of the full spectrum light source optical nitrate nitrogen sensor in the prior art.

[0006] To solve the above technical problems, the utility model adopts the following technical scheme:

[0007] The utility model provides a miniaturized full spectrum light source optical nitrate nitrogen sensor, which comprises an emitter and a receiver, the receiver is arranged opposite to the emitter, and a detection space is formed between the end face of the emitter and the end face of the receiver;

[0008] The bottom of the emitter is provided with an emission boss, the cross-sectional area of the emission boss is smaller than that of the end face of the emitter, the top of the receiver is provided with a receiving boss, the cross-sectional area of the receiving boss is smaller than that of the end face of the receiver, and a sample window is arranged between the emission boss and the receiving boss;

[0009] The emitter is provided with a full spectrum light source, and the receiver is provided with a processor for processing the transmitted light through the sample window.

[0010] Preferably, the receiver is located below the emitter.

[0011] Based on the above scheme, the receiver is located below the emitter, which can optimize the optical path design, so that the emitted light can be more directly irradiated onto the sample, and received by the receiver below, reducing the scattering and loss of light inside the sensor, and improving the measurement efficiency.

[0012] Preferably, the cross-sectional area of the emission boss is equal to the cross-sectional area of the receiving boss.

[0013] Based on the above scheme, in the full-spectrum light source optical nitrate sensor, ensuring that the cross-sectional area of the emission and receiving bosses is equal helps to accurately align the light beam, so that the emitted light can be accurately received by the receiver, reducing the possibility of light beam deviation or scattering.

[0014] Preferably, the emission boss and the receiving boss are both semi-elliptical.

[0015] Based on the above scheme, the semi-elliptical shape can improve the flow characteristics of the water flow, so that the water flow passes through the sensor more uniformly, reducing local vortex and turbulence, thereby improving the stability and accuracy of the measurement.

[0016] Preferably, the bottom of the emission boss and the top of the receiving boss are both provided with light-transmitting lenses.

[0017] Based on the above scheme, the light-transmitting lenses can help focus the emitted light, so that the light is more concentrated on the sample, improving the sensitivity and accuracy of the measurement.

[0018] Preferably, the full-spectrum light source emitter is a xenon lamp.

[0019] Preferably, the emitter includes an emission cylinder, and the receiver includes a receiving cylinder, and the emission cylinder is fixed to the receiving cylinder by a connector.

[0020] Based on the above scheme, by fixing the emission cylinder to the receiving cylinder through the connector, the relative position between the two components can be fixed, providing stable structural support and reducing displacement due to vibration or external impact.

[0021] Preferably, the side wall of the connector away from the sample window is flush with the side wall of the emission cylinder.

[0022] Based on the above scheme, the connector flush with the side wall of the emission cylinder can reduce the obstruction of the connector to the optical path, avoiding additional light signal loss or interference, and ensuring the accuracy of the measurement.

[0023] Preferably, the lower end of the emission cylinder and the emission boss is provided with an upper flow guide bevel.

[0024] Preferably, the receiving cylinder and the upper end of the receiving boss are each provided with a lower flow guide bevel.

[0025] Based on the above scheme, the flow guide bevel design helps to guide the water sample to flow smoothly into and out of the measurement area, reducing the retention and turbulence of the water sample inside the sensor, thereby reducing measurement errors.

[0026] The beneficial effects of the present application are:

[0027] The utility model provides a kind of miniaturization full spectrum light source optical nitrate nitrogen sensor, compared with traditional cabinet type measurement method, with significant volume advantage and portability, so that it can be widely applied in on-site rapid detection and real-time monitoring, also have the advantages of low manufacturing cost. By reducing the cross-sectional area of the emitter and the receiver end face, and equipped with smaller transmitting boss and receiving boss, this design not only enhances the water flowability, but also reduces the test surface area, thereby helping to concentrate light, improve light utilization and measurement sensitivity. This design also helps to reduce impurities in water, reduce the impact of impurity accumulation on subsequent measurement, maintain the cleanliness of the sensor and the accuracy of measurement. In addition, miniaturization design makes the sensor more modular, facilitating integration and maintenance, while improving optical performance, such as reducing chromatic aberration and aberration, improving beam uniformity and symmetry. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0029] Figure 1 is a first schematic diagram of the structure of a miniaturized full spectrum light source optical nitrate nitrogen sensor in the present application.

[0030] Figure 2 is a second schematic diagram of the structure of a miniaturized full spectrum light source optical nitrate nitrogen sensor in the present application.

[0031] Figure 3 is Figure 2 is an enlarged view of A in

[0032] Figure 4 is a partial sectional view of the lower end face of the emitter in the present application.

[0033] Explanation of figure numbers:

[0034] 1 - transmitter; 2 - receiver; 3 - transmitting boss; 4 - receiving boss; 5 - light-transmitting lens; 6 - connector; 7 - upper flow guide bevel; 8 - lower flow guide bevel. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. It should be understood that the specific embodiments described herein are only used to explain the utility model and not used to limit the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0036] Referring to Figures 1-4 The embodiment provides a miniaturized full-spectrum light source optical nitrate sensor, which comprises a transmitter 1 and a receiver 2, the receiver 2 is arranged opposite to the transmitter 1, and a detection space is formed between the end face of the transmitter 1 and the end face of the receiver 2.

[0037] The bottom of the transmitter 1 is provided with a transmitting boss 3, the cross-sectional area of the transmitting boss 3 is smaller than the cross-sectional area of the end face of the transmitter 1, the top of the receiver 2 is provided with a receiving boss 4, the cross-sectional area of the receiving boss 4 is smaller than the cross-sectional area of the end face of the receiver 2, and a sample window is arranged between the transmitting boss 3 and the receiving boss 4.

[0038] The transmitter 1 is provided with a full-spectrum light source, and the receiver 2 is provided with a processor for processing transmitted light through a sample in the sample window.

[0039] In any of the above solutions, the receiver 2 is located below the transmitter 1.

[0040] In addition, in order to enable the transmitted light to be accurately received by the receiver 2, in any of the above solutions, the cross-sectional area of the transmitting boss 3 is equal to the cross-sectional area of the receiving boss 4.

[0041] The transmitting boss 3 and the receiving boss 4 are both semicircular.

[0042] Specifically, the cross-sectional shape of the transmitting boss 3 and the receiving boss 4 is semicircular, the transmitter 1 and the receiver 2 are arranged opposite to each other, light can smoothly pass through the sample window, and the symmetry of the light path is maintained.

[0043] The bottom of the transmitting boss 3 and the top of the receiving boss 4 are both provided with a light-transmitting lens 5.

[0044] Specifically, a light-transmitting lens 5 is disposed at the bottom of the emitting boss 3, i.e., the end of the emitter 1. Similarly, a light-transmitting lens 5 is also disposed at the top of the receiving boss 4, i.e., the starting end of the receiver 2. This allows light emitted by the emitter 1 to pass through the light-transmitting lens 5 at the bottom of the emitting boss 3 and directly illuminate the sample in the sample window. The light-transmitting lens 5 of the emitting boss 3 is disposed opposite the light-transmitting lens 5 of the receiving boss 4.

[0045] In addition, the full-spectrum light source emitter 1 is a xenon lamp.

[0046] In addition, the transmitter 1 includes a transmitting tube, and the receiver 2 includes a receiving tube. The transmitting tube is fixed to the receiving tube via a connector 6.

[0047] The connector 6 is away from the side wall of the sample window and is flush with the side wall of the emitting tube.

[0048] Specifically, the transmitter 1 is composed of a transmitting tube, and the receiver 2 is composed of a receiving tube. These two cylindrical structures are the outer shell parts of the sensor used to fix and protect the transmitter 1 and the receiver 2. The transmitting tube is located at the transmitting end of the sensor, and the transmitter 1 is installed inside it for emitting light. An transmitting boss 3 is provided at one end of the transmitting tube for contacting the sample window so that the light can illuminate the water sample. The receiving tube is located at the receiving end of the sensor, and the receiver 2 is installed inside it for receiving the light after passing through the water sample. The transmitting tube is fixed to the receiving tube through the connector 6. The connector 6 is a connecting block used to tightly combine the transmitting tube and the receiving tube to ensure that the two are fixed and aligned in space. The connector 6 is flush with the side wall of the transmitting tube and is integrated with the transmitting tube and the receiving tube.

[0049] In order to guide the water sample to flow smoothly into and out of the measurement area, based on any of the above schemes, the lower ends of the emitting tube and the emitting boss 3 are provided with an upper guide bevel 7, and the upper ends of the receiving tube and the receiving boss 4 are provided with a lower guide bevel 8.

[0050] Specifically, the upper guide bevel 7 and the lower guide bevel 8 are both chamfered.

[0051] The following is a further explanation of the present invention in conjunction with its working principle:

[0052] The sensor is placed on the flow path of the water source, and the water in the water source starts to flow and contacts the upper flow guide bevel 7 of the emitting cylinder and the lower flow guide bevel 8 of the receiving cylinder, so that the water source flows into the sample window; the emitter 1 emits a full-spectrum light source in the emitting cylinder, the light passes through the light-transmitting lens 5 at the bottom of the emitting boss 3, and then irradiates the sample window area at the lower end of the emitting boss 3; the light passes through the sample window and contacts the water sample in flow, and the nitrate content in the water sample absorbs light of a specific wavelength; the light absorbed by the water sample continues to transmit, is received by the receiver 2 through the light-transmitting lens 5 at the top of the receiving boss 4, and is converted into data through processing.

[0053] The utility model is not limited to the above optional implementation, and the schemes can be combined arbitrarily on the premise of not being contradictory; anyone can derive other various forms of products under the enlightenment of the utility model, but no matter any change in shape or structure, any technical scheme falling within the scope defined by the claims of the utility model falls within the protection scope of the utility model.

Claims

1. A miniaturized full-spectrum optical nitrate sensor, characterized by: The device comprises a transmitter and a receiver, wherein the receiver is arranged opposite to the transmitter, and a detection space is formed between the end face of the transmitter and the end face of the receiver; The bottom of the transmitter is provided with a transmitting boss, the cross-sectional area of ​​which is smaller than the cross-sectional area of ​​the end face of the transmitter; the top of the receiver is provided with a receiving boss, the cross-sectional area of ​​which is smaller than the cross-sectional area of ​​the end face of the receiver; and a sample window is provided between the transmitting boss and the receiving boss; The transmitter is provided with a full-spectrum light source, and the receiver is provided with a processor for processing the transmitted light passing through the sample in the sample window.

2. The miniaturized full-spectrum optical nitrate sensor according to claim 1, characterized in that: The receiver is located below the transmitter.

3. The miniaturized full-spectrum optical nitrate sensor according to claim 1, characterized in that: The cross-sectional area of ​​the emitting boss is equal to the cross-sectional area of ​​the receiving boss.

4. The miniaturized full-spectrum optical nitrate sensor according to claim 1, characterized in that: The emitting boss and the receiving boss are both semi-elliptical.

5. The miniaturized full-spectrum optical nitrate sensor according to claim 1, characterized in that: The bottom of the emitting boss and the top of the receiving boss are both provided with light-transmitting lenses.

6. The miniaturized full-spectrum optical nitrate sensor according to claim 1, characterized in that: The full-spectrum light source emitter is a xenon lamp.

7. The miniaturized full-spectrum optical nitrate sensor according to claim 1, characterized in that: The transmitter includes a transmitting tube, and the receiver includes a receiving tube. The transmitting tube is fixed to the receiving tube via a connector.

8. The miniaturized full-spectrum optical nitrate sensor according to claim 7, characterized in that: The side wall of the connector away from the sample window is flush with the side wall of the emitting tube.

9. The miniaturized full-spectrum optical nitrate sensor according to claim 7, characterized in that: The lower ends of the launching tube and the launching boss are both provided with upper guide bevels.

10. The miniaturized full-spectrum optical nitrate sensor according to claim 7, characterized in that: The upper ends of the receiving tube and the receiving boss are both provided with lower flow guide bevels.

Images