Visual degree detection device and visual degree detection method for aerosol

Abstract

The invention provides a visual degree detection device and method for aerosol, and the device comprises an aerosol generator which is used for transmitting aerosol generated by an aerosol generation product; the camera obscura is used for providing a measuring environment and receiving and containing the aerosol from the aerosol generator; the light source is used for emitting visible light towards the aerosol in the camera obscura; the first illuminometer is used for receiving light reflected by the aerosol in the camera obscura to form reflected illuminance value data; and the acquisition part is used for receiving reflection illuminance value data from the first illuminometer. According to the aerosol visual degree detection device and method, the problem that aerosol visual degree detection cannot be quantified is solved, and the aerosol visual degree detection device and method are simple in structure and convenient to operate and have wide application prospects.

Description

Technical Field

[0001] The present invention relates to the field of aerosol detection, and in particular to an aerosol visibility detection device and a visibility detection method. Background Art

[0002] Vision, hearing, smell, taste, touch, etc. are one of the means by which people usually make a comprehensive evaluation of things. For aerosols, people usually make their evaluation of them first from the visual sense, that is, the visual effect that can be seen by the naked eye under visible light. Taking heated cigarettes or electronic cigarettes as an example, affected by the visual sense of visible smoke during the smoking process of traditional burning cigarettes, consumers often first observe whether the visible effect of the product's smoke is good, that is, whether the visible effect of the aerosol formed by tobacco products is good, to obtain the satisfaction of smoking or judge the quality of the product, which is an important indicator affecting the consumer's experience. In addition, technicians judge that the reason for the change in the visible effect of the aerosol formed by tobacco products may be related to the material composition, different particle size distribution, and particle concentration of the aerosol system. Therefore, the visible effect of the aerosol formed by tobacco products can be used as an intuitive reference for technicians to initially judge the quality level of the product.

[0003] At present, in order to study the aerosol effect formed by tobacco products, technicians in the prior art mostly use two methods to measure the aerosol conditions formed by tobacco products. Under the inhalation parameter conditions specified in ISO 3308, ISO 20768 or ISO20778 standards, one method is: measuring the intensity of electromagnetic wave absorption of the aerosol, setting a lens lumen and a transmitting and receiving device of electromagnetic waves of a specific wavelength (such as a laser, etc.) on the aerosol transmission pipeline close to the mouth end of the cigarette holder to collect the energy loss of the electromagnetic wave when the aerosol passes through the lumen to measure the difference in the aerosol conditions formed by tobacco products; the technical defects of this method are: 1. The composition of substances in the aerosol is very complex and different. There are differences in the composition and proportion of aerosol substances of different samples. Correspondingly, the ability of various substances to absorb the energy of electromagnetic waves of specific wavelengths is also different. Among them, the aerosol composed of substances that do not absorb energy has consistent visible light. 1. The law of reflection intensity, that is, an aerosol system with greater energy absorption may not have a good visual effect. On the contrary, an aerosol system with good visual effect may not have a greater energy absorption capacity for electromagnetic waves than a system with average or even poor visibility. Therefore, its measurement results cannot well represent the research purpose of smoke visibility; 2. The lens is easily contaminated by smoke condensate. Pollutants also have the ability to absorb electromagnetic waves, which will cause deviations in measurement results. However, it is difficult to achieve instant, online and good cleaning of the lens, so the reliability of continuous measurement results cannot be ensured; 3. Most transmission measurement systems have high requirements for the distance and alignment of the source and receiver, as well as the requirements for the lens, which increases the difficulty of measuring equipment and measurement process control. The other is to use a particle size distribution instrument to detect the particle size distribution and particle concentration of aerosols. There are many principles for particle size distribution detection, such as laser particle size analysis, resistance meter method, sedimentation method, microscope method, electrostatic migration method, etc. The technical defects of this method are: 1. This kind of detection method presents the particle size distribution and particle concentration results of all particles in the aerosol system that may not have obvious visible light reflection effect, and the results deviate from the purpose of observing the visual effect of aerosols; 2. This kind of detection method often requires certain processing of the original aerosol, for example: dilution (vacuum dilution or air dilution) to prevent aerosol particles from colliding with each other and causing particle size changes. Air dilution), but a large part of the aerosol is liquid particles, which will also change in particle size due to evaporation or breakage during the forced dilution process. The degree of particle size change of different aerosol particles in the same treatment process may not be the same. The treated aerosol system is no longer the original natural state of the aerosol; 3. The results obtained by using different particle size distribution measurement principles are also very different. For example, in some literature, the median particle size of some similar samples measured by sedimentation method is about 600-700nm, and the median particle size measured by electrostatic migration method is about 40-60nm. The huge difference in measurement results of different methods has brought troubles to researchers.

[0004] However, the visual effect of the aerosol cannot be quantitatively judged only by the naked eye. Although the prior art has made many research improvements on the quantitative measurement methods of the aerosol effect formed by tobacco products, in terms of the measurement results of the above two types of methods, the results all contain to varying degrees the measurement information of aerosol components that do not have visual effects in the visible light environment, and it is difficult to achieve the research purpose of objectively characterizing the visual degree of the aerosol. Summary of the Invention

[0005] The present invention provides a device for detecting the visual degree of an aerosol to solve the above technical problems.

[0006] A device for detecting the visual degree of an aerosol provided by the present invention includes:

[0007] An aerosol generator for transmitting the aerosol generated by an aerosol-generating article;

[0008] A light-tight box for providing a measurement environment and receiving and accommodating the aerosol from the aerosol generator;

[0009] A light source for emitting visible light towards the aerosol in the light-tight box;

[0010] A first illuminance meter for receiving the light reflected by the aerosol in the light-tight box to form reflected light illuminance value data;

[0011] An acquisition unit for receiving the reflected light illuminance value data from the first illuminance meter.

[0012] By adopting the above technical solution, it is possible to detect the visual degree of the aerosol of the smoking article. Utilizing the principle that the Tyndall effect occurs when visible light irradiates the aerosol system, it truly restores and expresses the visual experience of the visual degree of the aerosol. The reason for the change in the visual degree effect of the tobacco product smoking is related to the material composition, different particle size distributions, particle concentrations, etc. of the aerosol system. Therefore, it provides an intuitive reference for technicians to initially judge the product quality level of the smoking article, with low measurement cost, real-time, simple, and fast measurement process. At the same time, by using the device for detecting the visual degree of the aerosol of the present application, the visual effect is reflected through the illuminance data of the reflected light, which also provides a data basis for the subsequent improvement research of the smoking article.

[0013] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a device for detecting the visual degree of an aerosol, wherein the light source and the first illuminance meter are located on the inner wall of the same side of the light-tight box.

[0014] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a device for detecting the visibility of an aerosol. The dark box is provided with a first mounting port and a second mounting port, and the first mounting port and the second mounting port are used for mounting a first illuminance meter. The first mounting port and the light source are located on the inner wall of the same side of the dark box, and the second mounting port and the light source are respectively located on the inner walls of opposite sides of the dark box.

[0015] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a device for detecting the visibility of an aerosol, further comprising a cover member for shielding the first mounting port and / or the second mounting port when not in use, so that ambient stray light does not penetrate into the dark box.

[0016] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a device for detecting the visibility of an aerosol. The dark box is further equipped with a second illuminance meter, and the second illuminance meter and the light source are respectively located on the inner walls of opposite sides of the dark box.

[0017] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a device for detecting the visibility of an aerosol. The first mounting port and the second mounting port are used for detachably mounting a first illuminance meter.

[0018] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a device for detecting the visibility of an aerosol. The dark box includes an aerosol inlet, and the aerosol inlet is communicated with an aerosol generator. The aerosol generated in the aerosol generator enters the dark box through the aerosol inlet. The device for detecting the visibility of the aerosol has a first direction, and the first direction is the irradiation direction on the central axis of the light source. The included angle formed by the aerosol inlet direction and the first direction is less than or equal to 90 degrees.

[0019] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a device for detecting the visibility of an aerosol. The dark box includes two or more aerosol inlets.

[0020] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a device for detecting the visibility of an aerosol. The distance between any two aerosol inlets does not exceed 0.5 - 5 cm.

[0021] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a device for detecting the visibility of an aerosol. The distance between the geometric center of the aerosol inlet and the light source in the first direction is 10 - 100 cm.

[0022] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a device for detecting the visibility of an aerosol. The shape of the aerosol inlet is circular or elliptical.

[0023] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a device for detecting the visibility of an aerosol. The total area of the aerosol inlet is 1-10 cm 2 .

[0024] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a device for detecting the visibility of an aerosol. The inner wall of the dark box is covered with a low-reflection material.

[0025] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a device for detecting the visibility of an aerosol. The low-reflection material includes one or more of carbon nanotubes, carbon black, and low-reflection fabric.

[0026] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a device for detecting the visibility of an aerosol. The low-reflection fabric is a fabric with a reflected illuminance value not exceeding 30 lx under natural light conditions.

[0027] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a device for detecting the visibility of an aerosol. The shape of the chamber of the dark box is one of a cube, a cuboid, a cylinder, a sphere, an ellipsoid, and an axisymmetric cylinder surrounded by a polygon.

[0028] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a device for detecting the visibility of an aerosol. The light source includes one of a xenon lamp and an LED lamp.

[0029] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a device for detecting the visibility of an aerosol. The light source includes one of an annular coaxial light source, a point light source, and an array light source.

[0030] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a device for detecting the visibility of an aerosol. The light source is an annular coaxial light source. The light source and the first illuminance meter are located on the inner wall of the same side of the dark box, and the first illuminance meter is located at the center of the annular coaxial light source.

[0031] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a device for detecting the visibility of an aerosol. The aerosol generator has a first transmission path and a second transmission path. The first transmission path is used to directly transfer the original aerosol generated by the aerosol generating article into the dark box as the aerosol, and the second transmission path is used to transfer the mixture of the original aerosol generated by the aerosol generating article and air into the dark box as the aerosol.

[0032] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a device for detecting the visibility of an aerosol. The aerosol generator further includes a mixing chamber for mixing the original aerosol and air, and the mixing chamber is in communication with the inside of the dark box.

[0033] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a device for detecting the visibility of an aerosol. The dark box is provided with an exhaust port, and the device for detecting the visibility of the aerosol further includes an active exhaust device. The exhaust port is in communication with the active exhaust device, and the aerosol in the dark box enters the active exhaust device through the exhaust port and is discharged.

[0034] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a device for detecting the visibility of an aerosol. The dark box is provided with an observation port, and the device for detecting the visibility of the aerosol further includes a photographing device. The observation port is in communication with the photographing device, and the real-time state image of the aerosol in the dark box is collected and recorded by the photographing device.

[0035] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a device for detecting the visibility of an aerosol. The dark box includes an air inlet, and the air inlet includes an air intake port and an aerosol intake port. The air intake port is used for introducing air into the dark box, and the aerosol intake port is in communication with the aerosol generator. The aerosol generated in the aerosol generator enters the dark box through the aerosol intake port; the air inlet, the exhaust port, and the observation port are all provided with light-shielding components.

[0036] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a device for detecting the visibility of an aerosol, and the wavelength of the light source is 380 - 780 nm.

[0037] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a device for detecting the visibility of an aerosol, and the reflected light illumination value of the dark box under the illumination of a light source with an illuminance of 550 lx is 0 - 110 lx.

[0038] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a method for detecting the visibility of an aerosol. Using the device for detecting the visibility in any of the above specific embodiments, the method includes the following steps:

[0039] Receiving the aerosol: Transfer the aerosol in the aerosol generator into the dark box;

[0040] Detecting and collecting: Emitting visible light into the dark box through the light source, receiving the light emitted by the aerosol in the dark box through the first illuminometer to form reflected light illumination value data, and using the acquisition unit to receive the reflected light illumination value data.

[0041] With the above technical solution, by collecting relevant parameters such as the reflected light intensity value of the aerosol, and corresponding the reflected light intensity value of the aerosol to the visible degree effect of the aerosol, it provides a means of quantitative characterization for detecting the magnitude and stability of the aerosol release amount between different samples or different suction ports.

[0042] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a method for detecting the visible degree of an aerosol, which further includes before the step of receiving the aerosol:

[0043] Emptying: Introduce air into the dark box and evacuate at the same time to empty the residual aerosol in the dark box.

[0044] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a method for detecting the visible degree of an aerosol, which further includes between the emptying step and the step of receiving the aerosol:

[0045] Background value detection: Emit visible light into the dark box through a light source, and detect the reflected light intensity value of the dark box as the background value;

[0046] In the detection and acquisition step, subtract the detected reflected light intensity value of the aerosol in the dark box from the background value to obtain the reflected light intensity value data.

[0047] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a method for detecting the visible degree of an aerosol, and the method further includes after receiving the aerosol, photographing and acquiring a real-time state image of the aerosol in the dark box under visible light.

[0048] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a method for detecting the visible degree of an aerosol, which further includes determining the corresponding relationship between the reflected light intensity value data and the visible degree effect of the aerosol according to the real-time state image and the reflected light intensity value data.

[0049] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a method for detecting the visible degree of an aerosol, which further includes:

[0050] Verifying the light source: Detect the original illuminance value of the light emitted by the light source itself, and compare the original illuminance value with a preset illuminance range to determine whether it reaches the preset illuminance range. Description of the Drawings

[0051] Figure 1 Shows a schematic structural diagram of the visible degree detection device according to an embodiment of the present invention;

[0052] Figure 2 Shows a schematic diagram of the installation position of the first illuminometer when verifying the light source of the visible degree detection device according to an embodiment of the present invention;

[0053] Figure 3 Schematic diagram showing the real-time state image of the aerosol in the dark box under visible light captured and collected by the visibility detection device according to an embodiment of the present invention;

[0054] Figure 4 Schematic diagram showing the state of the aerosol and the optical path in the dark box of the visibility detection device according to an embodiment of the present invention;

[0055] Figure 5 Graph showing the comparison data of the reflected light illumination values when the visibility detection device according to a specific embodiment of the present invention detects the superposed aerosol of each puff of heated cigarettes and traditional cigarette samples.

[0056] (Symbol description)

[0057] 1 Acquisition unit

[0058] 2 Light source

[0059] 3 Annular coaxial light

[0060] 4 First illuminometer

[0061] 41 First mounting port

[0062] 42 Second mounting port

[0063] 5 Exhaust port

[0064] 6 Dark box

[0065] 7 Observation port

[0066] 8 Active exhaust device

[0067] 9 Air intake port

[0068] 10 Cover

[0069] 11 Aerosol intake port

[0070] 12 Aerosol generator

[0071] 121 First intake port

[0072] 122 Second intake port

[0073] 123 Valve

[0074] 124 First piston

[0075] 125 Second piston

[0076] 126 Mixing chamber

[0077] 13 Aerosol generator host computer

[0078] 14 Light source controller

[0079] X first direction

[0080] A A direction

[0081] B B direction

[0082] C Intake direction of aerosol

[0083] L Central axis of light source

[0084] α Angle formed by the intake direction of the aerosol and the first direction Specific implementation mode

[0085] The following specific embodiments illustrate the implementation modes of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention will be introduced in conjunction with preferred embodiments, this does not mean that the features of this invention are limited to this implementation mode. On the contrary, the purpose of introducing the invention in conjunction with the implementation mode is to cover other alternatives or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, many specific details will be included in the following description. The present invention can also be implemented without using these details. In addition, in order to avoid confusing or obscuring the key points of the present invention, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0086] It should be noted that in this specification, similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0087] In the description of this embodiment, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "high", "low", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0088] In the description of this embodiment, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific situations.

[0089] To make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0090] The aerosol described in the present invention refers to a gaseous dispersion system composed of solid or liquid particles suspended in a gas medium. For example, it can be the smoke generated by heating a cigarette without combustion. In addition, the tobacco products described in the present invention, i.e., aerosol-generating products, include tobacco products such as cigarettes, cigars, heated cigarettes, e-cigarettes, etc., which can generate smoke through methods such as ignition and heating, and then through suction. It can also be extended to other fields or products that do not require suction to generate smoke.

[0091] As is well known, tobacco products generate aerosols. The amount, concentration of the generated aerosols, and the change of the aerosol state over time reflect to a certain extent the design performance, actual working condition performance, etc. of the tobacco products themselves. Specifically for tobacco products, during the suction process, tobacco products generate aerosols. The amount, concentration, and stability of the aerosols released per puff are related to factors such as the design, process, and manufacturing of the product, and can reflect the quality level of the product to a certain extent. Due to the influence of factors such as the heating method, raw material type, type and addition amount of the fumigant, manufacturing process, and the working temperature curve of the heating element of the smoking device, there are often certain differences in the ability to generate aerosols among different products or different individuals of the same product, as judged from a general visual observation of actual suction. Some products have a relatively large amount of aerosols, some are relatively small, and some also vary between different puffs. In addition, the state of the aerosols will also show different manifestations due to different smoking behaviors. For example, consumers will adopt different smoking methods: the small-circulation method, that is, directly exhaling the aerosol after smoking in the mouth; the large-circulation method, that is, after smoking in the mouth, inhaling it into the lungs with the air, and then exhaling the aerosol through the mouth and nose together. When some products are suctioned using the small-circulation method, the exhaled aerosol still has a relatively good visual effect, while when switched to the large-circulation suction method, the amount of the exhaled aerosol is very small, or even hardly visible. Technical personnel judge that the reason for the change in the visual effect of the smoke generation of tobacco products may be related to the substance composition, particle concentration, different particle size distributions of the aerosol system, and the degree of sedimentation or adsorption in the lungs.

[0092] The present invention discloses a device for detecting the visibility degree of an aerosol and a method for detecting the visibility degree of the aerosol of a smoking article. The main principle utilized by the present invention is as follows: A uniform and stable light source with a wavelength range including the visible light range is used to irradiate the aerosol in a low-reflection environmental background. Based on the principle of the Tyndall effect generated by light in the aerosol system and the property that different aerosols have different reflection capabilities for visible light, relevant parameters such as the reflected light illuminance of the aerosol are collected, and the reflected light illuminance value of the aerosol is used as an index for judging the visibility degree effect of the aerosol. By establishing a measurement method for quantitatively characterizing the size and stability of the aerosol release amount between different samples or different suction ports, the present invention further expands the extensive research space related to the association between the visibility degree effect of the aerosol and its material composition, proportion, state, etc.

[0093] As Figures 1 - 3 shown, the present invention provides a device for detecting the visibility degree of an aerosol, including: an aerosol generator 12 for delivering the aerosol generated by an aerosol-generating article; a dark box 6 for providing a measurement environment and receiving and accommodating the aerosol from the aerosol generator; a light source 2 for emitting visible light towards the aerosol in the dark box; a first illuminance meter 4 for receiving the light reflected by the aerosol in the dark box to form reflected light illuminance value data; and a collection unit 1 for receiving the reflected light illuminance value data from the first illuminance meter. The collection unit 1 can be, for example, a computer, which can store and display the reflected light illuminance value data under the current detection for the operator to determine the visibility degree of the aerosol in the current dark box 6. Additionally, the collection unit 1 can also directly judge the visibility degree based on the detected reflected light illuminance value data.

[0094] Due to the different reflection capabilities of the object surface for visible light, light of different intensities and colors enters the human eye, stimulating the rod cells that sense the light intensity and the cone cells that sense colors in the human eye, thereby enabling humans to form a visual perception of the object. Therefore, collecting the reflected light illuminance values of the aerosol in the natural dispersion state can characterize the strength differences and maintenance capabilities of the visibility effects of aerosols formed with different particle size distributions, particle concentrations, and material compositions.

[0095] Furthermore, the light source 2 and the first illuminance meter 4 are located on the inner wall of the same side of the dark box 6. When the light source 2 emits visible light towards the aerosol in the dark box 6, due to the influence of the optical properties such as the particle size and material composition of the aerosol particles, the aerosol will have effects such as absorption, scattering, diffraction, and reflection on the visible light. The first illuminance meter is arranged on the same side as the light source, which can receive the light reflected by the aerosol in the dark box 6 and avoid receiving other light except for the reflected light, thereby improving the detection accuracy.

[0096] Further, the dark box 6 is provided with a first mounting port 41 and a second mounting port 42. The first mounting port 41 and the second mounting port 42 are used for detachably mounting the first illuminance meter 4. The first mounting port 41 and the light source 2 are located on the inner wall of the same side inside the dark box 6, and the second mounting port 42 and the light source 2 are respectively located on the inner walls of the opposite sides inside the dark box 6. In this way, the first illuminance meter 4 can be mounted on the second mounting port 42, so as to directly detect the illuminance of the light emitted by the light source 2 when no aerosol is introduced into the dark box 6. If the detected illuminance of the light emitted by the light source 2 is determined not to meet the preset requirements, the light source 2 is adjusted. After the adjustment is appropriate, the first illuminance meter 4 is removed from the second mounting port 42 and then mounted on the first mounting port 41. After that, when detecting the visibility degree of the aerosol, the first illuminance meter 4 located on the first mounting port 41 detects the light reflected by the aerosol inside the dark box 6. Exemplarily, the dark box of the present invention may also be provided with a third mounting port, a fourth mounting port, etc. The number of the above-mentioned mounting ports should not be construed as a limitation to the present invention.

[0097] Further, the aerosol visibility degree detection device further includes a cover member 10, which is used to seal the first mounting port 41 and / or the second mounting port 42 when not in use, so that stray light from the external environment does not penetrate into the dark box, and to prevent the influence of the light outside the dark box on the device detection.

[0098] In other embodiments, the dark box 6 is further installed with a second illuminance meter (not shown in the figure). The second illuminance meter and the light source 2 are respectively located on the inner walls of the opposite sides inside the dark box 6. And the first illuminance meter 4 in the above-mentioned embodiment is directly installed on the inner wall on the same side as the dark box 6. The first illuminance meter 4 is used to detect the illuminance of the light reflected by the aerosol, and the second illuminance meter is used to detect the illuminance of the light directly emitted by the light source 2, avoiding the need to change the position of the first illuminance meter 4 during the process of verifying the light source. The installation position of the second illuminance meter can be, for example, the position of the second mounting port 42 in the above-mentioned embodiment, that is, the second illuminance meter is installed facing the light source 2. Exemplarily, the dark box 6 of the present invention may also be installed with a third illuminance meter, a fourth illuminance meter, etc. The number of the above-mentioned installed illuminance meters should not be construed as a limitation to the present invention.

[0099] Further, as Figure 1 shown, the dark box 6 includes an aerosol inlet 11. The aerosol inlet 11 is communicated with an aerosol generator 12. The aerosol generated in the aerosol generator 12 enters the dark box through the aerosol inlet 11. The visibility degree detection device has a first direction X, and the first direction X is the irradiation direction on the central axis L of the light source. The included angle α formed by the inlet direction C of the aerosol and the first direction X is less than or equal to 90 degrees, so that the aerosol does not enter in the direction towards the light source, reducing the pollution of the aerosol to the surface of the light source during the detection process of the current experiment, thereby avoiding the change of the illuminance value emitted by the light source and ensuring the accuracy of the reflected light measurement result.

[0100] Further, the dark box 6 includes 2 to 3 aerosol inlets 11, and the distance between any two aerosol inlets 11 does not exceed 0.5 to 5 cm. Among them, the aerosol inlet 11 of the present invention can be composed of 2 to 3. The positional relationship of multiple aerosol inlets 11 can be randomly arranged and combined as long as the distance between any two aerosol inlets 11 meets the above requirements. By using multiple aerosol inlets maintaining the above distance, the state of exhaled aerosol when the human mouth and nose are in the relative position can be simulated. For example, when using 2 aerosol inlets alone, the state of aerosol exhaled from the human nose can be simulated, or when using 3 aerosol inlets, the state of aerosol exhaled when the human mouth and nose act together can be simulated.

[0101] Further, the distance between the geometric center of the aerosol inlet 11 and the light source 2 in the first direction X is 10 to 100 cm. Ensuring a certain distance between the light source 2 and the aerosol can reduce the pollution of the light source and more realistically simulate the visible degree state of the aerosol under visible light. In addition, when the number of aerosol inlets 11 is 1, the geometric center of the aerosol inlet 11 is the geometric center of this one aerosol inlet 11; when the number of aerosol inlets 11 is 2, the geometric center of the aerosol inlet 11 is the geometric center of the whole formed by these 2 aerosol inlets 11, for example, the midpoint of the connection line of the 2 aerosol inlets 11; when the number of aerosol inlets 11 is 3, the geometric center of the aerosol inlet 11 is the geometric center of the whole formed by these 3 aerosol inlets 11, for example, the center of the triangle formed by the 3 aerosol inlets 11.

[0102] Further, the shape of the aerosol inlet 11 is circular or oval, and the total area of the aerosol inlet 11 is 1 to 10 cm 2 . Further, the area of the aerosol inlet 11 is 2 to 5 cm 2 . Preferably, the area of the aerosol inlet 11 is 3 to 4 cm 2 . The shape of the aerosol inlet 11 is circular or oval, similar to the shape of the human mouth. The area of the aerosol inlet 11 also simulates the size of the human mouth, thereby realizing the simulation of the oral environment when a person sucks a smoking product, making the state of the aerosol released in the dark box more like the state of being exhaled from the human mouth and more conforming to the aerosol release state presented when a person sucks.

[0103] In the above embodiments, the inner wall of the dark box 6 is covered with a low-reflection material, which includes one or more of carbon nanotubes, carbon black, low-reflection fabrics, etc. The low-reflection fabric is a fabric with a reflected light illuminance value not exceeding 30 lx under natural light conditions, such as black flocked fabric. Further, the reflected light illuminance value of the dark box 6 at an illuminance of 550 lx of the light source 2 is not exceeding 110 lx. Still further, the reflected light illuminance value of the dark box 6 at an illuminance of 550 lx of the light source 2 is 0 to 10 lx. Preferably, the reflected light illuminance value of the dark box 6 at an illuminance of 550 lx of the light source 2 is 0 to 1 lx, so as to reduce the influence of the dark box environment on the detected reflected light illuminance value of the aerosol and avoid environmental interference as much as possible.

[0104] Further, the chamber shape of the dark box 6 is one of a cube, a cuboid, a cylinder, a sphere, an ellipsoid, and an axisymmetric cylinder surrounded by a polygon. Preferably, the shape of the dark box 6 is a cuboid and a cylinder. The cavity volume V of the internal chamber of the dark box 6 is: 0.5 to 125 L. Preferably, the cavity volume V of the internal chamber of the dark box 6 is: 5 to 80 L. The area S enclosed by all the inner walls of the internal chamber of the dark box 6 is: 50 to 2500 cm 2 . Preferably, the area S enclosed by the inner walls of the internal chamber of the dark box 6 is: 400 to 1300 cm 2 . The above set ranges for the volume and the inner wall area are relatively appropriate ranges determined through testing. They can not only avoid the influence of excessive dilution of the aerosol on the reflection intensity of visible light due to too large a space without the need for additional treatment, but also basically restore the natural floating state of the exhaled smoke in a real smoking scenario, ensuring the degree of reflection of the detection results to the real situation.

[0105] Further, the light source 2 includes one of a xenon lamp and an LED lamp, and the light source 2 includes one of an annular coaxial light source, a point light source, and an array light source. Preferably, as Figure 4 shown, the light source 2 is an annular coaxial light source composed of an annular coaxial light 3. The light source 2 and the first illuminance meter 4 are located on the inner wall of the same side of the dark box 6, and the first illuminance meter 4 is located at the center of the annular coaxial light source 2. As Figure 1 shown, the visible degree detection device of the present invention further includes a light source controller 14. Thus, a light source with a large adjustable range of light intensity and relatively uniform illuminance is realized, which can provide a uniform illuminance environment simulating different natural light illuminance conditions. The illuminance can be adjusted through the light source controller with reference to the natural light illuminance value collected by the first illuminance meter 4 or the corresponding ratio. And the first illuminance meter is located at the center of the annular coaxial light source, so that the reflected light illuminance value data of the aerosol distributed everywhere in the dark box can be obtained approximately equidistantly, which is beneficial to obtaining more accurate data and reducing the error of the detected illuminance value.

[0106] Further, the aerosol generator 12 has a first transmission path and a second transmission path. The first transmission path is used to directly transfer the original aerosol generated by the aerosol generating article into the dark box 6 as an aerosol, and the second transmission path is used to transfer the mixture of the original aerosol generated by the aerosol generating article and air into the dark box 6 as an aerosol. Thus, the processes of small-cycle suction simulating real human smoking and large-cycle suction of tobacco products are realized, and an aerosol close to the real state is generated. The visibility detection device of this embodiment can simulate the small-cycle suction state and the large-cycle suction state of the human body respectively, and is used to study the visibility of smoke under different suction states.

[0107] Further, the aerosol generator 12 further includes a mixing chamber 126. The mixing chamber 126 is used to mix the original aerosol and air, and the mixing chamber 126 is communicated with the inside of the dark box 6. In addition, the visibility detection device of the present invention further includes an aerosol generator host computer 13. The aerosol generator host computer 13 is connected to the first piston 124 and the second piston 125, and is used to control the aerosol generator 12 to transfer the aerosol generated by the aerosol generating article. The aerosol transferred to the dark box 6 described above is not limited to the original aerosol generated by the aerosol generating article, but also includes a mixture of the original aerosol and air.

[0108] Further, the dark box 6 is provided with an exhaust port 5 and an observation port 7. The visibility detection device further includes an active exhaust device 8 and a photographing device (not shown in the figure). The exhaust port 5 is communicated with the active exhaust device 8, and the aerosol in the dark box 6 enters the active exhaust device 8 through the exhaust port 5 and is discharged; the observation port 7 is communicated with the photographing device, and the real-time state image of the aerosol in the dark box 6 is collected and recorded by the photographing device. The above-mentioned active exhaust device 8 further includes an exhaust pipe line with a fan. Active exhaust is used to empty the residual aerosol in the dark box to prevent it from affecting the detection results when the dark box is used for measurement again. By using the photographing device, the smoke visual effects corresponding to different reflected light illumination values are understood, and the corresponding relationship between the values and the visibility is determined. Thus, the method of combining visual inspection and images is used to truly observe the visibility effect of the aerosol.

[0109] Further, continue to refer to as Figures 1 - 3As shown, the light-tight box 6 includes an air inlet, and the air inlet includes an air intake 9 and an aerosol intake 11. The air intake 9 is used to introduce air into the light-tight box, and the aerosol intake 11 is connected to an aerosol generator 12. The aerosol generated in the aerosol generator 12 enters the light-tight box through the aerosol intake 11; light-shielding components are provided at the air inlet, the exhaust port 5, and the observation port 7. There are various options for the specific design of the above light-shielding components. For example: for the design of the light-shielding components at the air inlet and the exhaust port 5, the light-shielding component can be set as a light-shielding shutter, and the surface wall of the shutter is covered with a low-reflection material. The low-reflection material can include one or more of carbon nanotubes, carbon black, low-reflection fabric, etc. The shutter can be designed to be installed on the inner wall of the light-tight box 6 at the air inlet or the exhaust port 5, and the surface of the shutter facing the inside of the light-tight box 6 needs to be covered with a low-reflection material; the shutter can also be designed to be installed in the pipeline leading to the light-tight box 6. The above pipeline is arranged outside the light-tight box 6 and extends outward from the air inlet or the exhaust port 5 to the outside of the light-tight box 6. The pipeline is connected to the light-tight box 6 through the air inlet or the exhaust port 5. At this time, the inner wall of the pipeline connected to the light-tight box 6 also needs to be covered with a low-reflection material. For the design of the light-shielding component at the observation port 7, the light-shielding component can be a conical funnel structure, and the surface wall of the conical funnel structure is covered with a low-reflection material. The low-reflection material can include one or more of carbon nanotubes, carbon black, low-reflection fabric, etc. The above conical funnel structure is arranged outside the light-tight box 6 and extends from the observation port 7 to the outside of the light-tight box 6 to the tip. The bottom of the conical funnel structure is connected to the light-tight box 6 through the observation port 7. Since the lens of the photographing device installed at the observation port 7 may be directly irradiated by the light source to form reflected light, affecting the measurement result, in order to avoid the occurrence of the above phenomenon, the lens of the photographing device is installed at the tip of the conical funnel structure, and the inner wall of the conical funnel structure also needs to be covered with a low-reflection material. The design of the above light-shielding component prevents stray light outside the light-tight box from entering the light-tight box and reduces the influence of the measurement environment on the detection result.

[0110] Further, the wavelength of the light source 2 is 380 - 780 nm. In this embodiment, the light source only emits visible light and covers the entire visible light band of 380 - 780 nm, so that the illuminance values received by the first illuminometer are all illuminance values of visible light, and the data results can be more in line with the visible degree effect of the corresponding aerosol.

[0111] Further, the reflected light illuminance value of the light-tight box 6 under the illuminance of 550 lx of the light source 2 is 0 - 110 lx. By restricting the reflected light illuminance value of the light-tight box 6, the influence of the environment of the light-tight box 6 on the measurement result is reduced.

[0112] The present invention also provides a method for detecting the visible degree of an aerosol. Using the above visible degree detection device, combined with Figure 1 , the method includes the following steps:

[0113] Receiving aerosol: Transfer the aerosol in the aerosol generator 12 into the light-tight box 6. The light-tight box 6 is enclosed, and the generated aerosol is stored in the light-tight box 6 for detection.

[0114] Detection and acquisition: Visible light is emitted into the light-tight box 6 by the light source 2. The first illuminance meter 4 receives the light emitted by the aerosol in the light-tight box 6 to form reflected light illuminance value data, and the acquisition unit 1 is used to receive the reflected light illuminance value data.

[0115] By collecting relevant parameters such as the reflected light illuminance value of the aerosol, corresponding the reflected light illuminance value of the aerosol to the visible degree effect of the aerosol provides a means of quantitative characterization for detecting the magnitude and stability of aerosol release amounts between different samples or different suction ports.

[0116] Further, before the step of receiving aerosol, it also includes: Emptying: Introduce air into the light-tight box 6 and simultaneously evacuate it to empty the residual aerosol in the light-tight box. Specifically, air is introduced through the air inlet 9. The light-tight box 6 is also provided with an exhaust port 5, and the exhaust port 5 is connected to the active exhaust device 8, so as to ventilate the light-tight box 6 and evacuate the residual aerosol for subsequent detection. Further, between the emptying step and the receiving aerosol step, it also includes: Background value detection: Visible light is emitted into the light-tight box 6 by the light source 2, and the reflected light illuminance value of the light-tight box 6 is detected as the background value; in the detection and acquisition step, the detected reflected light illuminance value of the aerosol in the light-tight box 6 is subtracted from the background value to obtain the reflected light illuminance value data. A part of the reflected light received by the first illuminance meter comes from the emission of the aerosol, and another part may come from the reflection of the inner wall of the light-tight box. Therefore, subtracting the illuminance value of the reflected light from the emission illuminance value of the light-tight box can reduce the error caused by the reflection of the light-tight box.

[0117] Further, the method for detecting the visible degree of the aerosol also includes, after receiving the aerosol, photographing and acquiring a real-time state image of the aerosol in the light-tight box 6 under visible light, such as Figure 3 shown. Even further, the method for detecting the visible degree of the aerosol also includes determining the corresponding relationship between the reflected light illuminance value data and the visible degree effect of the aerosol according to the real-time state image and the reflected light illuminance value data. The obtained image result can relatively truly reflect the visible degree effect of the aerosol. Through visual inspection or combined with image analysis, the corresponding relationship between the reflected light illuminance value data and the visible degree effect of the aerosol can be obtained by comparing with the illuminance value data.

[0118] Further, the method for detecting the visible degree of the aerosol in the above embodiment also includes:

[0119] Verification light source: Detect the original illuminance value of the light emitted by the detection light source 2 itself, compare the original illuminance value with the preset illuminance range to determine whether the preset illuminance range is reached. If the preset illuminance range is reached, the light source meets the requirements and can be detected. If not, adjust the light source 2 so that the emitted original illuminance value reaches the preset illuminance range. The preset illuminance range can be a numerical range or a specific point value. The preset illuminance range is, for example, the illuminance range in the external natural light environment, and further can be the illuminance range in a bright indoor environment in summer. Specifically, through detection, it is found that the preset illuminance range can be set to 100 - 550 lx, and more specifically, for example, 550 lx. The original illuminance value emitted by the light source is set to be consistent with the illuminance range in the natural light environment, which can simulate the dark box as the natural environment under the external suction of the user. At the same time, checking and adjusting the light source to maintain within the preset illuminance range can also ensure the consistency of the light source illuminance between multiple detections, that is, it meets the preset illuminance range. In this step, as Figure 2 shown, the first illuminometer 4 is installed on the second installation port 42, and the second installation port 42 and the light source 2 are respectively located on the inner walls of opposite sides in the dark box 6. The light emitted by the light source 2 shines on the first illuminometer 4, the first illuminometer 4 receives the light emitted by the light source, the acquisition unit 1 obtains the original illuminance value, and the above visual degree detection device can display the original illuminance value. If it is not within the preset illuminance range, the operator can adjust the light source 2 by himself. In other embodiments, the visual degree detection device of the present application can also adjust the light emission intensity of the light source 2 according to the preset illuminance range by itself.

[0120] The visual degree detection device for aerosol provided by the present invention further includes a single-group or multi-group specific wavelength transmitted light detection system (not shown in the figure) installed at a certain position on the side wall of the dark box 6, such as ultraviolet, laser, etc., which can synchronously measure certain characteristic components in the aerosol, and thereby investigate whether there is a relationship or degree between the content and distribution of these characteristic components in the smoke and the morphology and evolution of the aerosol, etc. For example, an ultraviolet transmission detection system can be installed to observe the absorbance at the characteristic wavelength of 259 nm to investigate the concentration of nicotine in the aerosol. The type, installation quantity, position, and method, etc. of the transmitted light detection system can be determined according to the specific measurement purpose and experiment. When necessary, a gas mixing device (not shown in the figure), such as a fan, can also be installed in the dark box 6. Other gas samplers and sensors can also be installed at a certain position on the side wall of the dark box 6 to implement synchronous measurement, such as: connecting a non-dispersive infrared detection system to measure the CO content in the aerosol; connecting a nitrogen oxide NO x detection system to measure the content of NO and NO2.

[0121] The aerosol visibility detection device provided by the present invention can also be equipped with an aerosol pH detector (not shown in the figure) in the dark box 6 to measure the pH value of the flue gas and evaluate or compare certain sensory characteristics of the flue gas, such as irritation. Exemplarily, the measured illuminance data is compared and analyzed with the chromatographic and mass spectrometric data of the particulate or gaseous phase of the aerosol, and based on this, it is determined whether there is an obvious correlation between the illuminance data and the type and composition ratio of the substances in the aerosol.

[0122] The aerosol visibility detection device provided by the present invention can also continuously monitor the continuously introduced airflow, providing a wider application scenario. Specifically, a numerical model is established through preliminary experiments, and according to the threshold given by the model, it is detected whether there is smoke generation, and based on this, it is judged whether a fire occurs and an alarm is triggered, etc. For another example, in some fields of chemical production, by continuously monitoring the change level of the illuminance (concentration) of the smoke in the reaction system, it is judged whether the reaction process is normal or terminated, etc. And in some production fields, etc., it can be monitored whether the gas emission meets the environmental protection requirements.

[0123] As a specific implementation manner, based on the above-mentioned visibility detection device and visibility detection method of the present invention, visibility detection is carried out, including the following steps:

[0124] S1: The visibility detection device is arranged as Figure 2 shown; to ensure accurate measurement, before each measurement, it is necessary to ensure that the inner cavity of the dark box 6 is emptied, open the air inlet 9 to balance the air pressure in the dark box 6 and ensure smooth ventilation during the exhaust process, and at the same time turn on the active exhaust device 8 to empty the dark box; after emptying, turn off the active exhaust device 8 and the air inlet 9 in sequence, and let it stand for about 1 minute or more to make the airflow in the dark box calm; start the light source controller 14 and the first illuminometer 4, observe the reading of the first illuminometer 4, and adjust the light source controller to make the light emitted by the light source reach an illuminance of 550 lx.

[0125] S2: Swap the positions of the first illuminometer 4 and the cover 10 as Figure 1 shown, read the reading of the first illuminometer 4 at this time, that is, the reflected illuminance value of the dark box 6 under the condition that the light source 2 emits light with an illuminance of 550 lx is used as the background value. This background value is used to subtract the reflected illuminance value of the aerosol in the dark box to reduce errors, or some models of illuminometers can be set to automatically subtract the background value.

[0126] S3: Turn on the smoke generator 12 and press a certain volume of generated smoke into the dark box 6. At the same time, start timing, and continuously read the readings of the first illuminometer 4 (or only read the maximum value) according to the requirements of the measurement purpose, so as to obtain a function of the smoke reflected illuminance changing with time, which is recorded by the acquisition unit 1.

[0127] S4: After the measurement is completed, the air inlet 9 and the active exhaust device 8 can be turned on in sequence to empty the dark box, and the subsequent measurement process can be repeated by implementing process S3, or preparations can be made for the next measurement.

[0128] In the above embodiments, S1 and S2 are preparations before the implementation of S3, and the purpose is to ensure stable and reliable results for each measurement. In other embodiments, if it is known that the dark box measurement environment meets the preset standards without changing the experimental parameters, it can be omitted.

[0129] As another specific implementation manner, based on the above visual degree detection device and visual degree detection method of the present invention, in specific research practices, according to different experimental purposes, measurement results of various different states of smoke generated in different scenarios can be provided.

[0130] Example 1, detection of the visual degree of the aerosol generated by a simulated human smoking in a small cycle process, as Figure 1 shown, using the first transmission path of the aerosol generator 12, smoking is carried out according to the puff volume and puff frequency specified in, for example, ISO 3308 or ISO 20768 (35 mL / 60 s / puff, 55 mL / 30 s / puff). By using the valve 123 to close the second air inlet 122 of the aerosol generator 12, opening the first air inlet 121 of the aerosol generator 12 and the aerosol air inlet 11, the original aerosol generated by the cigarette is inhaled into the mixing chamber 126 from the A direction. Immediately after each puff, the aerosol inhaled into the mixing chamber 126 is pushed out by the first piston 124 and pushed into the dark box 6 from the C direction through the aerosol air inlet 11. The data measured by the first illuminometer 4 is collected by the acquisition unit 1 at a certain data acquisition frequency. The data acquisition frequency is, for example, 5 Hz, or 10 Hz, or 20 Hz, or 50 Hz. The change of the reflected light intensity value of each aerosol during the puff interval is continuously measured, thereby reflecting the change law of the concentration of each puff of small cycle aerosol settling or dissipating over time. Before the next puff, the dark box is emptied, and the measurement results of each aerosol from the first puff to the last puff of a cigarette can reflect the concentration difference and change of the aerosol obtained by different puff numbers. From this, the stability of the aerosol release amount per puff of a cigarette being smoked can be further investigated, as well as the aerosol release stability among different types or specifications of cigarettes, or among different individual cigarettes of the same sample.

[0131] Example 2, detection of the visual degree effect of the aerosol generated by a simulated human smoking through a large cycle process, as Figure 1As shown, by using the second transmission path of the aerosol generator 12, when sucking according to the sucking capacity specified in ISO 3308 or ISO 20768, first close the second air inlet 122 and the aerosol air inlet 11 of the aerosol generator 12 by using the valve 123, open the first air inlet 121 of the aerosol generator 12, and suck the original aerosol generated by the cigarette from the A direction into the mixing chamber 126 of the aerosol generator 12. Close the first air inlet 121 and open the second air inlet 122 at the same time, keep the relative positions of the first piston 124 and the second piston 125 unchanged, and the first piston 124 and the second piston 125 jointly suck a certain volume of air into the mixing chamber 126 of the aerosol generator 12 from the B direction and mix it with the original aerosol previously sucked into the mixing chamber 126 of the aerosol generator 12. Close the second air inlet 121 and open the aerosol air inlet 11 at the same time, and then push the mixed aerosol into the dark box 6 from the C direction through the aerosol air inlet 11 for detection.

[0132] Adaptively, in order to further simulate the amount of gas inhaled and exhaled during human systemic smoking, as well as the humidity and temperature of the exhaled gas, so as to create a more realistic smoke state effect, relevant parameters can be collected in advance through smoking behavior research to provide a basis for determining the air inhalation volume, as well as the temperature and moisture content rate parameters of the air.

[0133] As another specific embodiment, based on the above visual degree detection device and visual degree detection method of the present invention, a method for detecting the superposition of multiple breaths of aerosol can be provided, specifically as follows:

[0134] In the case where the first breath of aerosol is not emptied, continue to introduce the second breath, the third breath... the nth breath of aerosol into the dark box 6, and thus continuously measure the influence law of the change in the concentration of each superposition on the reflected light intensity when multiple breaths of aerosol are successively superposed.

[0135] Such as Figure 1 As shown, by adjusting the luminous intensity of the light source 2, the background value of the reflected light intensity of the dark box 6 is about 100 lx, and under the detection conditions of the visual degree effect of the aerosol generated during the systemic smoking process described above, the maximum reflected light intensity when the aerosol of the heated cigarette and the traditional cigarette samples is superposed mouthful by mouthful is measured, and the results are as Figure 5 shown.

[0136] From Figure 5It can be seen that the reflected light illuminance of the aerosol of the heated cigarette sample and the illuminance increment superimposed per puff are significantly lower than those of the cigarette sample. However, this is basically consistent with the law of the visual degree effect of the aerosols of the two samples. Since those skilled in the art know that there are great differences in the material compositions of the aerosols of heated cigarettes and traditional cigarettes, especially the smoking agents such as glycerol and the moisture content, etc., this further shows that there is a certain relationship between the characteristics such as the concentration and components of the aerosol and its reflected light illuminance, and the detection method of the present invention can achieve the comparison and discrimination of the smoking effects of different types of samples.

[0137] Although the present invention has been illustrated and described by referring to some preferred embodiments of the present invention, those of ordinary skill in the art should understand that the above content is a further detailed description of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is only limited to these descriptions. Those skilled in the art can make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A visual degree detection device for an aerosol, characterized in that, Comprising: An aerosol generator for delivering the aerosol generated by an aerosol-generating article; A light-tight box for providing a measurement environment and receiving and accommodating the aerosol from the aerosol generator; A light source for emitting visible light towards the aerosol inside the light-tight box; A first illuminance meter for receiving the light reflected by the aerosol inside the light-tight box to form reflected light illuminance value data; An acquisition unit for receiving the reflected light illuminance value data from the first illuminance meter.

2. The visibility detection device for the aerosol according to claim 1, wherein The light source and the first illuminance meter are located on the inner wall of the same side inside the light-tight box.

3. The visual degree detection device of the aerosol according to claim 2, characterized in that, The light-tight box is provided with a first mounting opening and a second mounting opening for mounting the first illuminance meter. The first mounting opening and the light source are located on the inner wall of the same side inside the light-tight box, and the second mounting opening and the light source are respectively located on the inner walls of opposite sides inside the light-tight box.

4. The visibility detection device for the aerosol according to claim 3, characterized in that, It further includes a cover for shielding the first mounting opening and / or the second mounting opening when not in use, so that stray light from the external environment does not penetrate into the light-tight box.

5. The visibility detection device for the aerosol according to claim 2, wherein, A second illuminance meter is further installed in the light-tight box, and the second illuminance meter and the light source are respectively located on the inner walls of opposite sides inside the light-tight box.

6. The visibility detection device for the aerosol according to claim 3, characterized in that, The first mounting opening and the second mounting opening are used for detachably mounting the first illuminance meter.

7. The visual degree detection device for the aerosol according to claim 1, wherein, The light-tight box includes an aerosol inlet, the aerosol inlet is communicated with the aerosol generator, the aerosol generated in the aerosol generator enters the light-tight box through the aerosol inlet, the aerosol visibility detection device has a first direction, the first direction is the irradiation direction on the central axis of the light source, and the included angle formed by the aerosol inlet direction and the first direction is less than or equal to 90 degrees.

8. The visibility detection device for the aerosol according to claim 7, characterized in that, The light-tight box includes two or more aerosol inlets.

9. The visibility detection device for the aerosol according to claim 8, characterized in that, The distance between any two of the aerosol inlets does not exceed 0.5 - 5 cm.

10. The visible degree detection device of the aerosol according to any one of claims 7-9, characterized in that, The distance between the geometric center of the aerosol inlet and the light source in the first direction is 10 - 100 cm.

11. The visibility detection device for the aerosol according to any one of claims 7-9, characterized in that, The shape of the aerosol inlet is circular or elliptical.

12. The visibility detection device for the aerosol according to any one of claims 7-9, characterized in that, The total area of the aerosol inlet is 1 to 10 cm 2 .

13. The visual degree detection device for the aerosol according to claim 1, characterized in that, The inner wall of the light-tight box is covered with a low-reflection material.

14. The visibility detection device for the aerosol according to claim 13, wherein, The low-reflection material includes one or more of carbon nanotubes, carbon black, and low-reflection fabrics.

15. The visual degree detection device of the aerosol according to claim 14, characterized in that, The low-reflection fabric is a fabric with a reflected light illuminance value not exceeding 30 lx under natural light conditions.

16. The visual degree detection device for the aerosol according to claim 1, characterized in that, The chamber shape of the light-tight box is one of a cube, a cuboid, a cylinder, a sphere, an ellipsoid, and an axisymmetric cylinder surrounded by a polygon.

17. The visibility detection device for the aerosol according to claim 1, characterized in that, The light source includes one of a xenon lamp and an LED lamp.

18. The visibility detection device for the aerosol according to claim 1, wherein, The light source includes one of an annular coaxial light source, a point light source, and an array light source.

19. The visibility detection device for the aerosol according to claim 18, characterized in that, The light source is an annular coaxial light source, the light source and the first illuminance meter are located on the inner wall of the same side inside the light-tight box, and the first illuminance meter is located at the center of the annular coaxial light source.

20. The visibility detection device for the aerosol according to claim 1, characterized in that, The aerosol generator has a first transmission path and a second transmission path. The first transmission path is used for directly delivering the original aerosol generated by the aerosol-generating article as the aerosol into the light-tight box, and the second transmission path is used for delivering the mixture of the original aerosol generated by the aerosol-generating article and air as the aerosol into the light-tight box.

21. The visibility detection device for the aerosol according to claim 20, characterized in that, The aerosol generator further includes a mixing chamber for mixing the original aerosol and the air, and the mixing chamber communicates with the inside of the light-tight box.

22. The aerosol visibility detection device according to claim 1, characterized in that, The light-tight box is provided with an exhaust port. The aerosol visibility detection device further includes an active exhaust device. The exhaust port communicates with the active exhaust device, and the aerosol in the light-tight box enters the active exhaust device through the exhaust port and is discharged.

23. The visibility detection device for the aerosol according to claim 22, wherein, The light-tight box is provided with an observation port. The aerosol visibility detection device further includes a photographing device. The observation port communicates with the photographing device, and the real-time state image of the aerosol in the light-tight box is collected and recorded by the photographing device.

24. The visibility detection device for the aerosol according to claim 23, characterized in that, The light-tight box includes an air inlet, and the air inlet includes an air intake port and an aerosol intake port. The air intake port is used for introducing air into the light-tight box, and the aerosol intake port communicates with the aerosol generator. The aerosol generated in the aerosol generator enters the light-tight box through the aerosol intake port; the air inlet, the exhaust port and the observation port are all provided with light-shielding components.

25. The visible degree detection device for the aerosol according to claim 1, wherein, The wavelength of the light source is 380 - 780 nm.

26. The visual degree detection device of the aerosol according to claim 1, wherein, The reflected light illumination value of the light-tight box under the illumination of the light source with an illuminance of 550 lx is 0 - 110 lx.

27. A method for detecting the visibility of an aerosol, characterized in that, Using the visibility detection device according to any one of claims 1 - 20, the method includes the following steps: Receiving the aerosol: Transmitting the aerosol in the aerosol generator into the light-tight box; Detecting and collecting: Emitting visible light into the light-tight box through the light source, receiving the light emitted by the aerosol in the light-tight box through the first illuminometer to form reflected light illumination value data, and using the acquisition unit to receive the reflected light illumination value data.

28. The method for detecting the visibility of the aerosol according to claim 27, wherein, Before the step of receiving the aerosol, it further includes: Emptying: Introducing air into the light-tight box and discharging it simultaneously to empty the residual aerosol in the light-tight box.

29. The method for detecting the visibility degree of the aerosol according to claim 28, wherein, Between the emptying step and the step of receiving the aerosol, it further includes: Background value detection: Emitting visible light into the light-tight box through the light source, and detecting the reflected light illumination value of the light-tight box as the background value; In the detecting and collecting step, the detected reflected light illumination value of the aerosol in the light-tight box is subtracted from the background value to obtain the reflected light illumination value data.

30. The method for detecting the visibility degree of the aerosol according to claim 27, wherein The method further includes, after receiving the aerosol, photographing and collecting the real-time state image of the aerosol in the light-tight box under visible light.

31. The method for detecting the visibility degree of the aerosol according to claim 30, wherein, It further includes determining the corresponding relationship between the reflected light illumination value data and the aerosol visibility effect according to the real-time state image and the reflected light illumination value data.

32. The method for detecting the visibility of an aerosol according to claim 27, wherein, It further includes: Verifying the light source: Detecting the original illumination value of the light emitted by the light source itself, and comparing the original illumination value with a preset illumination range to determine whether it reaches the preset illumination range.

Images