CN113804753A - Measuring method for representing smoking perception behavior of cigarettes - Google Patents
Measuring method for representing smoking perception behavior of cigarettes Download PDFInfo
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Images
Classifications
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- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/02—Analysing fluids
- G01N29/024—Analysing fluids by measuring propagation velocity or propagation time of acoustic waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/24—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave
- G01P5/245—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave by measuring transit time of acoustical waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
The invention provides a measuring method for representing smoking perception behaviors of cigarettes, which belongs to the technical field of cigarette measurement and is applied to a measuring device, wherein the measuring device comprises a temperature acquisition unit, an air pressure acquisition unit, a control unit and a communication unit, the temperature acquisition unit, the air pressure acquisition unit and the communication unit are all in communication connection with the control unit, the cigarette holding mechanism of the measuring device comprises a shell, a cigarette holding cavity, a cigarette blocking cavity, an inner drum-shaped measuring cavity, a first ultrasonic speed measurement unit, a second ultrasonic speed measurement unit, a cylindrical measuring cavity and a power switch The non-threshold is popularized and applied.
Description
Technical Field
The invention belongs to the technical field of cigarette measurement, and particularly relates to a measurement method for representing smoking perception behaviors of cigarettes.
Background
The cigarette is a special smoking addiction product, the perception mechanism of a consumer is very complex, and even if the same cigarette and the same consumer have different smoking behavior habits, the cigarette quality perception judgment (such as the feeling of warmth, the feeling of smoke satisfaction and the feeling of easiness in smoking) of the consumer is greatly influenced. Therefore, the method accurately represents the smoking perception behavior of the cigarettes, and has great significance in the aspects of improving the design level of cigarette products, improving the acceptance degree of consumers, promoting the research on the relationship between smoke and health and the like. The cigarette consumption perception behavior characterization method is usually in the form of questionnaires, has poor objectivity and is difficult to quantify, so that the investigation work is low in efficiency, poor in accuracy and poor in timeliness and is interfered by human factors such as regions, brands, consumption levels and smoking habits. The intensity of the temperature stimulus of the smoke temperature to the oral cavity, the magnitude of the touch stimulus (tension) of the suction pressure to the oral cavity and the suction depth can be directly or indirectly measured through a physical method.
The invention discloses CN108523218B, CN108567165B and CN108523219B patents which are respectively published by 2021-05-11 through retrieval, and CN108523218B discloses a filter stick, a cigarette and a smoking device with a collecting function, wherein the cigarette comprises a filter stick and a cigarette stick which is connected with the filter stick and is used for filling tobacco raw materials, the filter stick comprises a filter stick body, a control unit and a collecting unit for collecting smoking habit data information of a smoker are arranged in the filter stick body, and the control unit is connected with the collecting unit through sampling of a sampling line; the acquisition unit comprises at least one of the following sensors: temperature sensor, air pressure sensor and be used for detecting the pressure sensor of filter rod body radial pressure. On one hand, the design of the invention ensures that smokers can obtain accurate smoking habit data by an objective means, which is convenient for guiding the smokers to change bad smoking habits and avoids the situation that excessive smoking cigarettes harm the health as much as possible; on the other hand, also be convenient for a cigarette staff can accurately acquire masses' suction data to improve the quality of a cigarette product.
CN108567165B discloses a filter rod, a cigarette and a smoking device, and a cigarette includes the filter rod to and link to each other with the filter rod, be used for filling the tobacco rod of tobacco raw materials, the filter rod includes the filter rod body, and filter rod body is inside to be provided with the memory cell that control unit, communication unit and be used for saving a cigarette self information, and communication unit and memory cell all link to each other with the control unit. The control unit in the filter rod body or the smoking device body can acquire the cigarette self information stored in the storage unit and send the acquired information out through the communication unit, so that a smoker can conveniently and quickly acquire the cigarette information.
CN108523219B discloses a filter rod, a cigarette and a smoking device with communication function, this cigarette includes the filter rod to and link to each other with the filter rod, be used for filling the tobacco rod of tobacco raw materials, including the filter rod body, filter rod body is inside to be provided with control unit, communication unit and to be used for gathering the collection unit of smoker's suction habit data information, and communication unit and collection unit all link to each other with control unit. The invention can send various data information about the suction habit acquired by the acquisition unit arranged in the filter stick body out through the communication unit, so that a smoker or a cigarette staff can receive related information through the external receiving unit which establishes contact with the communication unit. This communication unit's setting is convenient for a cigarette staff accurately acquires masses' suction data, is convenient for make statistics of and analyze it, and then improves the quality of a cigarette product according to the analysis result.
The invention patent disclosed above designs a collecting, controlling and communicating unit mode in the filter tip of the cigarette to objectively collect and process the data in the smoking process of the cigarette, so as to obtain the relevant data of the smoking habit of the consumer, such as the smoke temperature, the smoke pressure, the time for smoking a bite, and the like, and conveniently and quickly obtain other necessary information of the cigarette. However, because the collection units of the invention are all positioned in the middle of the filter body, the necessary temperature loss and pressure loss in the flowing process of smoke from the collection unit to the suction end are not considered, the influence of the three-dimensional space occupied by the collection unit, the control unit and the communication unit on the pressure, the temperature and the suction time is not considered, the influence of the physical damage of the cigarette or the quality of the cigarette when the measurement unit is implanted into the cigarette is not considered, and the smoke pressure is not considered at the same time, so that the smoking depth of the cigarette can not be comprehensively and correctly reflected (for example, when the cigarette is not smoked smoothly, the pressure is inevitably increased but the smoking amount is not necessarily increased), therefore, the efficiency of data acquisition of the invention is higher, but the system deviation exists between the test value and the true value, and the true stimulation of the cigarette to the oral cavity of a consumer (namely, "the smoking perception of the consumer") is difficult to be accurately reflected. In addition, the technical threshold of the implementation of the invention is high, professional training or special production is required for implementation, the implementation efficiency is not high, the device is difficult to recycle, and the economy is poor.
Disclosure of Invention
The embodiment of the invention provides a measuring method for representing a cigarette smoking perception behavior, and aims to solve the problems of non-uniform technical and physical information acquisition means, inaccurate data, incomplete information, general practicability, poor economical efficiency and non-objective practical and technical performance in the existing smoking cigarette.
In view of the above problems, the technical solution proposed by the present invention is:
a measurement method for representing cigarette smoking perception behaviors is applied to a measurement device, wherein the measurement device comprises a temperature acquisition unit, an air pressure acquisition unit, a control unit and a communication unit, and the temperature acquisition unit, the air pressure acquisition unit and the communication unit are all in communication connection with the control unit;
the measuring device further comprises a cigarette holding mechanism, the cigarette holding mechanism comprises a shell, a cigarette holding cavity, a cigarette blocking cavity, an inner drum-shaped measuring cavity, a first ultrasonic speed measuring unit, a second ultrasonic speed measuring unit, a cylindrical measuring cavity and a power switch, the inner cavity of the shell is sequentially provided with the cigarette holding cavity, the cigarette blocking cavity, the inner drum-shaped measuring cavity and the cylindrical measuring cavity from left to right, the cigarette holding cavity, the cigarette blocking cavity, the inner drum-shaped measuring cavity and the cylindrical measuring cavity are sequentially communicated, the cigarette holding cavity is used for clamping cigarettes, the temperature collecting unit, the air pressure collecting unit and the first ultrasonic speed measuring unit are all installed inside the inner drum-shaped measuring cavity, the second ultrasonic speed measuring unit is installed inside the cylindrical measuring cavity, the control unit and the communication unit are all embedded into the inner wall of the cylindrical measuring cavity, the power switch is mounted on the outer surface of the cylindrical measuring cavity, and the first ultrasonic speed measuring unit, the second ultrasonic speed measuring unit and the power switch are all in communication connection with the control unit;
the measuring method comprises the following steps:
s1, inserting cigarettes of a certain brand into the cigarette holding cavity and blocking the cigarettes at a fixed position through the cigarette blocking cavity, wherein the central axis of each cigarette is consistent with that of the shell, and the cigarette is fastened in the cigarette holding cavity through the sealing ring;
s2, the cigarette holding mechanism for holding cigarettes is arranged in a lip, the power switch is positioned on the lip and is connected with a power supply, and the control unit, the temperature acquisition unit, the air pressure acquisition unit, the first ultrasonic speed measurement unit, the second ultrasonic speed measurement unit and the communication unit are electrified;
s3, when in suction, smoke enters the inner drum-shaped measuring cavity and the cylindrical measuring cavity from the suction section of the cigarette, instantaneous temperature information and instantaneous pressure information of the smoke are respectively collected through the temperature collecting unit and the air pressure collecting unit, and meanwhile, the accurate instantaneous smoke flow rate can be calculated by utilizing the time difference of two paths of ultrasonic waves of the first ultrasonic speed measuring unit and the second ultrasonic measuring unit;
s4, the temperature acquisition unit, the air pressure acquisition unit, the first ultrasonic speed measurement unit and the second ultrasonic measurement unit output instantaneous temperature information, instantaneous pressure information and instantaneous flue gas flow rate information of flue gas in a fixed period through the control unit and the communication unit, the escape amount of each port of flue gas can be calculated according to the instantaneous flue gas flow rate information and by combining the diameter of the cylindrical measurement cavity, and an instantaneous temperature curve, a flue gas pressure curve and a flue gas speed curve can be obtained through the instantaneous temperature information, the instantaneous pressure information and the flue gas flow rate information;
s5, taking time corresponding to a time sequence point corresponding to a continuous positive value smoke velocity interval as a starting point and a stopping point of single-port suction, and respectively representing a temperature accumulation index, a tension index and a suction amount of each port suction process by using an area enclosed by an instantaneous temperature curve, an area enclosed by a smoke pressure curve and an area enclosed by a smoke velocity curve;
and S6, counting the number of suction openings, the average single-opening accumulated temperature index, the maximum tension index and the accumulated suction amount in the smoking process of the cigarettes, and taking the counted result as an index for representing the smoking perception behavior characteristics of the cigarettes.
As a preferable technical scheme, at least two clamping grooves are formed in the inner surface of the cigarette holding cavity, and sealing rings are arranged in the at least two clamping grooves.
As a preferable technical scheme of the invention, the shell is made of metal, and the outer surface of the shell can be coated with rubber or resin with low thermal conductivity.
As a preferred technical solution of the present invention, the power switch is a contact power switch, and the power supply is delayed to power off and stop working when the lips leave the power switch during the suction in step S3, where the time of the delay is greater than or equal to 100S.
As a preferable aspect of the present invention, the calculation formulas of the temperature accumulation index, the tension index, and the suction amount in step S5 are respectively as follows:
in the formula: t represents the accumulated temperature index, the area enclosed by the instantaneous temperature T curve, and the unit is;
p represents the tensity index, the area enclosed by the curve of the instantaneous pressure P, and the unit Pa;
c represents the suction amount, the area enclosed by the curve of the instantaneous smoke velocity V, and the unit mL;
v represents the flue gas speed in cm/min;
Δ t represents the acquisition period;
i represents the oral order, and a natural number of 1, 2, 3 … … n is taken;
j represents a time series point corresponding to a wind speed of a continuous positive value, and is a natural number of 1, 2, 3 … … n.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention can simulate and reproduce technical conditions, test environment and smoking parameters of the process of smoking cigarettes by a human body to the maximum extent, and ensure the objectivity, accuracy and timeliness of information obtained by measurement; the acquired data information can be used for improving the design level of cigarette products, improving the acceptable degree of the products and promoting the deep development of the research on the relationship between smoke and health.
(2) The measuring device disclosed by the invention is small in size, can be used by being directly connected with the oral cavity after being inserted into a cigarette, does not need professional treatment, is not limited by environmental conditions, does not need professional training, is simple and convenient to use, is standard and quick to operate, can be repeatedly utilized, and is suitable for large-area market-oriented popularization and application without a threshold.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
FIG. 1 is a three-view diagram of a measuring device for characterizing a measuring method of a cigarette smoking perception behavior according to the present invention;
FIG. 2 is a schematic diagram of the determination of the number of puffs and the amount of each puff by the measurement method for characterizing the smoking perception behavior of a cigarette disclosed by the invention;
FIG. 3 is a flow chart of a measurement method for characterizing the smoking perception behavior of a cigarette according to the present disclosure;
FIG. 4 is a communication connection diagram of a measuring device of a measuring method for characterizing cigarette smoking perception behavior disclosed by the invention.
Description of reference numerals: 1. cigarettes; 2. a smoke holding cavity; 3. a smoke blocking cavity; 4. an inner drum-shaped measurement chamber; 5. a first ultrasonic speed measurement unit; 6. a second ultrasonic speed measurement unit; 7. a temperature acquisition unit; 8. an air pressure acquisition unit; 9. a cylindrical measurement cavity; 10. a power switch; 11. a control unit; 12. a communication unit; 13. a measuring device; 14. a housing; 15. a card slot; 16. a seal ring; 17. a smoke holding mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Examples
Referring to fig. 1 and 4, the present invention provides a technical solution: a measuring method for representing smoking sensing behaviors of cigarettes is applied to a measuring device 13, the measuring device 13 comprises a temperature collecting unit 7, an air pressure collecting unit 8, a control unit 11 and a communication unit 12, the temperature collecting unit 7, the air pressure collecting unit 8 and the communication unit 12 are all in communication connection with the control unit 11, the measuring device 13 further comprises a cigarette holding mechanism, the cigarette holding mechanism comprises a shell 14, a cigarette holding cavity 2, a cigarette blocking cavity 3, an inner drum-shaped measuring cavity 4, a first ultrasonic speed measuring unit 5, a second ultrasonic speed measuring unit 6, a cylindrical measuring cavity 9 and a power switch 10, the cigarette holding cavity 2, the cigarette blocking cavity 3, the inner drum-shaped measuring cavity 4 and the cylindrical measuring cavity 9 are sequentially arranged in the inner cavity of the shell 14 from left to right, the cigarette holding cavity 2, the cigarette blocking cavity 3, the inner drum-shaped measuring cavity 4 and the cylindrical measuring cavity 9 are sequentially communicated, the cigarette holding cavity 2 is used for holding a cigarette 1, the temperature collecting unit 7, the air pressure collecting unit 7, the communication unit 12, the air pressure collecting unit 8 and the communication unit 12, the communication unit 12 are sequentially communicated with the inner drum-shaped measuring cavity 4, the cylindrical measuring cavity 9 is connected with the cylindrical measuring cavity 9, and the inner cavity is connected with the inner cavity, and the inner cavity is used for holding cavity for holding the cigarette, The atmospheric pressure acquisition unit 8 and the first supersound speed unit 5 are all installed in the inside of interior drum-shaped measurement chamber 4, and the second supersound speed unit 6 is installed in the inside of cylindrical measurement chamber 9, and the inner wall of cylindrical measurement chamber 9 is all embedded into to the control unit 11 and the communication unit 12, and switch 10 installs in the surface of cylindrical measurement chamber 9, and first supersound speed unit 5, second supersound speed unit 6 and switch 10 all link to each other with the communication of control unit 11.
In this embodiment, the temperature acquisition unit 7 and the air pressure acquisition unit 8 are respectively a temperature sensor and a pressure sensor, and are respectively used for detecting instantaneous temperature information and instantaneous pressure information of the flue gas; first supersound speed unit 5 and second supersound speed unit 6 are the supersound sensor that tests the speed, and first supersound speed unit 5 is the mirror image setting with second supersound speed unit 6, are convenient for measure the ultrasonic time difference.
Of course, in the manufacturing process of the cigarette holding mechanism, the inner diameter range of the cigarette holding cavity 2 of the cigarette holding mechanism is 5 mm-8 mm so as to adapt to cigarettes of different specifications.
Referring to fig. 3, the measuring method includes the steps of:
s1, inserting a cigarette 1 of a certain brand into the cigarette holding cavity 2 and blocking the cigarette in a fixed position through the cigarette blocking cavity 3, wherein the central axis of the cigarette 1 is consistent with the central axis of the shell 14 and is fastened in the cigarette holding cavity 2 by the sealing ring 16.
S2, the cigarette holding mechanism for holding the cigarette 1 is arranged in the lip, the power switch 10 is positioned on the lip and is powered on by the control unit 11, the temperature acquisition unit 7, the air pressure acquisition unit 8, the first ultrasonic speed measurement unit 5, the second ultrasonic speed measurement unit 6 and the communication unit 12.
Specifically, the outer contour of the housing 14 is oval to allow the suction chamber to fit easily, comfortably, and tightly against the lips.
S3, the smoke enters the inner drum-shaped measuring cavity 4 and the cylindrical measuring cavity 9 from the suction section of the cigarette 1 during suction, instantaneous temperature information and instantaneous pressure information of the smoke are respectively collected through the temperature collecting unit 7 and the air pressure collecting unit 8, and meanwhile, the accurate instantaneous smoke flow rate is calculated by utilizing the time difference of two paths of ultrasonic waves of the first ultrasonic speed measuring unit 5 and the second ultrasonic measuring unit.
Specifically, a tester independently sucks and ignites the cigarettes, and independently and repeatedly sucks the cigarettes according to own experience until the cigarettes are completely sucked; in the preferred embodiment of the present invention, the power switch 10 is a contact type power switch 10, the power supply will be delayed to power off and stop working when the lips leave the power switch 10 during the suction in step S3, and the time delay is greater than or equal to 100S to prevent the cigarette suction interruption from occurring accidentally.
The flow velocity of the smoke escaping from the cigarette suction end is not consistent on the cross section, but the smoke velocity tends to be consistent in the process that the smoke passing through the inner drum-shaped measuring cavity 4 enters the cylindrical measuring cavity 9 under the constraint of the cross section.
S4, the temperature acquisition unit 7, the air pressure acquisition unit 8, the first ultrasonic speed measurement unit 5 and the second ultrasonic measurement unit output instantaneous temperature information, instantaneous pressure information and instantaneous flue gas flow rate information of flue gas in a fixed period through the control unit 11 and the communication unit 12, the escape amount of each port of flue gas can be calculated according to the instantaneous flue gas flow rate information and the diameter of the cylindrical measurement cavity 9, and an instantaneous temperature curve, a flue gas pressure curve and a flue gas speed curve can be obtained through the instantaneous temperature information, the instantaneous pressure information and the flue gas flow rate information.
Note that the fixed period is not more than 0.2 s.
And S5, taking time corresponding to the time sequence points corresponding to the continuous positive value smoke velocity interval as a starting point and a stopping point of single-port suction, and respectively representing the temperature accumulation index, the tension index and the suction amount of each port suction process by using the area enclosed by the instantaneous temperature curve, the area enclosed by the smoke pressure curve and the area enclosed by the smoke velocity curve. (shown with reference to FIG. 2)
In the preferred embodiment of the present invention, the calculation formulas of the accumulated temperature index, the tension index and the suction amount in step S5 are as follows:
in the formula: t represents the accumulated temperature index, the area enclosed by the instantaneous temperature T curve, and the unit is;
p represents the tensity index, the area enclosed by the curve of the instantaneous pressure P, and the unit Pa;
c represents the suction amount, the area enclosed by the curve of the instantaneous smoke velocity V, and the unit mL;
v represents the flue gas speed in cm/min;
Δ t represents the acquisition period;
i represents the oral order, and a natural number of 1, 2, 3 … … n is taken;
j represents a time series point corresponding to a wind speed of a continuous positive value, and is a natural number of 1, 2, 3 … … n.
And S6, counting the number of suction openings, the average single-opening accumulated temperature index, the maximum stress index and the accumulated suction amount in the smoking process of the cigarette 1 as an index for representing the smoking perception behavior characteristics of the cigarette.
The number of the suction openings, the average single-opening accumulated temperature index, the maximum stress index and the accumulated suction amount represent objective behavior characteristics of the smoking perception cigarette of the consumer.
The following table 1 is combined for observation, and the acquired perception characterization indexes of two cigarettes smoked by a measurer, wherein the number of smoking openings of the first brand, the total duration, the average single-opening accumulated temperature index and the accumulated smoking amount are all lower than those of the second brand, so that the smoking ease feeling of the first brand, the satisfaction and the safety are better, but the compensatory deep smoking phenomenon is caused due to the poor satisfaction, and the maximum stress index is higher. Therefore, quality improvement activities such as product design change, adjustment of adapting to consumer demands, smoke safety improvement and the like can be carried out according to the index of the smoking perception of the consumer and the specific working requirement or personal habit.
TABLE 1
In the preferred embodiment of the present invention, at least two locking grooves 15 are formed on the inner surface of the cigarette holding cavity 2, and a sealing ring 16 is disposed in each of the at least two locking grooves 15. The outer diameter of the sealing ring 16 is larger than the inner diameter of the cigarette holding cavity 2, and the inner diameter of the sealing ring 16 is smaller than the diameter of the cigarette, so that the cigarette holding cavity 2 can firmly clamp the cigarette 1, and the smoke leakage can be avoided.
In the preferred embodiment of the present invention, the main material of the housing 14 is metal, and the outer surface of the housing can be covered with rubber or resin material with low thermal conductivity; among the metal materials used for the case 14, for example, iron, stainless steel, zinc, aluminum, magnesium alloy, copper, chromium, titanium, or the like; among the rubber materials, for example, silicone rubber, nitrile rubber, butyl rubber, styrene-butadiene rubber, chloroprene rubber, or the like; among the resin materials, for example, polyester resin, vinyl resin, epoxy resin, or the like; in the test, because metal has higher thermal conductivity, rubber or resin materials with low thermal conductivity are used for reducing heat conduction, thereby avoiding scalding the mouth of a tester.
One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:
(1) the invention can simulate and reproduce technical conditions, test environment and smoking parameters of the process of smoking cigarettes by a human body to the maximum extent, and ensure the objectivity, accuracy and timeliness of information obtained by measurement; the acquired data information can be used for improving the design level of cigarette products, improving the acceptable degree of the products and promoting the deep development of the research on the relationship between smoke and health.
(2) The measuring device disclosed by the invention is small in size, can be used by being directly connected with the oral cavity after being inserted into a cigarette, does not need professional treatment, is not limited by environmental conditions, does not need professional training, is simple and convenient to use, is standard and quick to operate, can be repeatedly utilized, and is suitable for large-area market-oriented popularization and application without a threshold.
It should be noted that the model specifications of the control unit 11 and the communication unit 12 need to be determined by model selection according to the actual specification of the device, and the specific model selection calculation method adopts the prior art, so detailed description is omitted.
The power supply of the control unit 11 and the communication unit 12 and the principle thereof will be clear to a person skilled in the art and will not be described in detail here.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A measurement method for representing cigarette smoking perception behaviors is applied to a measurement device, the measurement device comprises a temperature acquisition unit, an air pressure acquisition unit, a control unit and a communication unit, and the temperature acquisition unit, the air pressure acquisition unit and the communication unit are all in communication connection with the control unit;
the measuring device further comprises a cigarette holding mechanism, the cigarette holding mechanism comprises a shell, a cigarette holding cavity, a cigarette blocking cavity, an inner drum-shaped measuring cavity, a first ultrasonic speed measuring unit, a second ultrasonic speed measuring unit, a cylindrical measuring cavity and a power switch, the inner cavity of the shell is sequentially provided with the cigarette holding cavity, the cigarette blocking cavity, the inner drum-shaped measuring cavity and the cylindrical measuring cavity from left to right, the cigarette holding cavity, the cigarette blocking cavity, the inner drum-shaped measuring cavity and the cylindrical measuring cavity are sequentially communicated, the cigarette holding cavity is used for clamping cigarettes, the temperature collecting unit, the air pressure collecting unit and the first ultrasonic speed measuring unit are all installed inside the inner drum-shaped measuring cavity, the second ultrasonic speed measuring unit is installed inside the cylindrical measuring cavity, the control unit and the communication unit are all embedded into the inner wall of the cylindrical measuring cavity, the power switch is mounted on the outer surface of the cylindrical measuring cavity, and the first ultrasonic speed measuring unit, the second ultrasonic speed measuring unit and the power switch are all in communication connection with the control unit;
the measuring method comprises the following steps:
s1, inserting cigarettes of a certain brand into the cigarette holding cavity and blocking the cigarettes at a fixed position through the cigarette blocking cavity, wherein the central axis of each cigarette is consistent with that of the shell, and the cigarette is fastened in the cigarette holding cavity through the sealing ring;
s2, the cigarette holding mechanism for holding cigarettes is arranged in a lip, the power switch is positioned on the lip and is connected with a power supply, and the control unit, the temperature acquisition unit, the air pressure acquisition unit, the first ultrasonic speed measurement unit, the second ultrasonic speed measurement unit and the communication unit are electrified;
s3, when in suction, smoke enters the inner drum-shaped measuring cavity and the cylindrical measuring cavity from the suction section of the cigarette, instantaneous temperature information and instantaneous pressure information of the smoke are respectively collected through the temperature collecting unit and the air pressure collecting unit, and meanwhile, the accurate instantaneous smoke flow rate can be calculated by utilizing the time difference of two paths of ultrasonic waves of the first ultrasonic speed measuring unit and the second ultrasonic measuring unit;
s4, the temperature acquisition unit, the air pressure acquisition unit, the first ultrasonic speed measurement unit and the second ultrasonic measurement unit output instantaneous temperature information, instantaneous pressure information and instantaneous flue gas flow rate information of flue gas in a fixed period through the control unit and the communication unit, the escape amount of each port of flue gas can be calculated according to the instantaneous flue gas flow rate information and by combining the diameter of the cylindrical measurement cavity, and an instantaneous temperature curve, a flue gas pressure curve and a flue gas speed curve can be obtained through the instantaneous temperature information, the instantaneous pressure information and the flue gas flow rate information;
s5, taking time corresponding to a time sequence point corresponding to a continuous positive value smoke velocity interval as a starting point and a stopping point of single-port suction, and respectively representing a temperature accumulation index, a tension index and a suction amount of each port suction process by using an area enclosed by an instantaneous temperature curve, an area enclosed by a smoke pressure curve and an area enclosed by a smoke velocity curve;
and S6, counting the number of suction openings, the average single-opening accumulated temperature index, the maximum tension index and the accumulated suction amount in the smoking process of the cigarettes, and taking the counted result as an index for representing the smoking perception behavior characteristics of the cigarettes.
2. The method for measuring the smoking perception behavior of the cigarette according to claim 1, wherein at least two clamping grooves are formed in the inner surface of the cigarette holding cavity, and sealing rings are arranged in at least two clamping grooves.
3. The method for measuring the smoking perception behavior of the cigarette according to claim 1, wherein the shell is made of metal, and the outer surface of the shell can be coated with rubber or resin materials with low thermal conductivity.
4. The method according to claim 1, wherein the power switch is a contact type power switch, and the power supply is powered off and stopped during the process that the lips leave the power switch during the smoking in step S3, wherein the time delay is greater than or equal to 100S.
5. The method according to claim 1, wherein the calculation formulas of the temperature accumulation index, the stress degree index and the smoking amount in step S5 are respectively as follows:
in the formula: t represents the accumulated temperature index, the area enclosed by the instantaneous temperature T curve, and the unit is;
p represents the tensity index, the area enclosed by the curve of the instantaneous pressure P, and the unit Pa;
c represents the suction amount, the area enclosed by the curve of the instantaneous smoke velocity V, and the unit mL;
v represents the flue gas speed in cm/min;
Δ t represents the acquisition period;
i represents the oral order, and a natural number of 1, 2, 3 … … n is taken;
j represents a time series point corresponding to a wind speed of a continuous positive value, and is a natural number of 1, 2, 3 … … n.
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