CN111521135B - Method for measuring aperture of tobacco suction resistance standard rod - Google Patents
Method for measuring aperture of tobacco suction resistance standard rod Download PDFInfo
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- CN111521135B CN111521135B CN202010525264.4A CN202010525264A CN111521135B CN 111521135 B CN111521135 B CN 111521135B CN 202010525264 A CN202010525264 A CN 202010525264A CN 111521135 B CN111521135 B CN 111521135B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B13/00—Measuring arrangements characterised by the use of fluids
- G01B13/08—Measuring arrangements characterised by the use of fluids for measuring diameters
- G01B13/10—Measuring arrangements characterised by the use of fluids for measuring diameters internal diameters
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- Measuring Arrangements Characterized By The Use Of Fluids (AREA)
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
Abstract
The invention discloses a method for measuring the aperture of a tobacco draw resistance standard rod, which comprises the steps of vacuumizing a sealed box body; injecting argon into the sealed box body; measuring a first volume of argon gas in the sealed box; putting a tobacco resistance-absorbing standard rod to be detected into a sealed box body; vacuumizing the sealed box body; injecting argon gas with the same amount into a sealed box body filled with a tobacco resistance-absorbing standard rod to be detected; measuring a second volume of argon in the sealed box body filled with the tobacco resistance-suction standard rod to be detected; subtracting the second volume from the first volume to obtain the entity volume of the tobacco draw resistance standard rod to be detected; measuring the profile volume of a tobacco draw resistance standard rod to be detected; subtracting the entity volume from the outline volume to obtain the total volume of the holes on the tobacco resistance-suction standard rod to be detected; and calculating according to the number of the holes, the length of the standard tobacco resistance suction rod to be detected and the total volume to obtain the diameter of the holes. The invention adopts a technology of filling the hole with a gas medium, and realizes the accurate detection of the hole diameter on the tobacco resistance-absorbing standard rod.
Description
Technical Field
The invention relates to the technical field of tobacco, in particular to a method for measuring the aperture of a tobacco draw resistance standard rod.
Background
The tobacco resistance-absorbing standard rod is a standard apparatus used on a special resistance-absorbing tester for tobacco. Research shows that the pore-forming diameter of the tobacco resistance-absorbing standard rod has great influence on the value and stability of the resistance-absorbing measurement. The conventional imaging method is generally adopted for measuring the pore-forming diameter of the conventional tobacco resistance absorption standard rod, but the conventional tobacco resistance absorption standard rod is generally made of transparent materials such as glass and acrylic to form a porous structure, the pore diameter of the standard rod is extremely small, the pores are long, and the standard rod generally penetrates through the whole length of the tobacco resistance absorption standard rod, so that the conventional imaging method is not completely applicable to pore diameter detection.
Disclosure of Invention
The invention aims to provide a method for measuring the aperture of a standard tobacco resistance-absorbing rod, which is used for solving the problems in the prior art and realizing the accurate detection of the aperture on the standard tobacco resistance-absorbing rod.
The invention provides a method for measuring the pore diameter of a standard tobacco draw resistance rod, which comprises the following steps:
vacuumizing the sealed box body;
injecting a set amount of argon into the sealed box body;
measuring a first volume of argon gas in the sealed box;
putting a tobacco resistance-absorbing standard rod to be detected into a sealed box body;
vacuumizing the sealed box body;
injecting the set amount of argon into the sealed box body filled with the tobacco resistance-suction standard rod to be detected;
measuring a second volume of argon in the sealed box body filled with the tobacco resistance-suction standard rod to be detected;
subtracting the second volume from the first volume to obtain the entity volume of the tobacco draw resistance standard rod to be detected;
measuring the profile volume of the tobacco resistance-absorbing standard rod to be detected;
subtracting the entity volume from the outline volume to obtain the total volume of the holes on the tobacco resistance-suction standard rod to be detected;
and calculating according to the number of the holes, the length of the standard tobacco resistance suction rod to be detected and the total volume to obtain the diameter of the holes.
The method for measuring the aperture of the standard tobacco draw resistance rod, wherein preferably, the measuring the profile volume of the standard tobacco draw resistance rod to be detected specifically comprises:
measuring the length size and the end face diameter of the tobacco resistance standard rod to be detected by adopting a nanometer three-coordinate system;
and calculating to obtain the profile volume of the standard tobacco resistance rod to be detected according to the length size and the end surface diameter.
The method for measuring the pore diameter of the standard tobacco draw resistance rod, wherein the diameter of the pore is preferably calculated according to the following formula:
wherein D represents the diameter of the hole, V1Representing a first volume, V2Indicating the second volume, L the length dimension of the standard rod of tobacco resistance to draw to be detected and N the number of holes.
The method for measuring the aperture of the tobacco draw resistance standard rod is characterized in that the sealed box body is provided with an interface for connecting a vacuum pump, and the sealed box body is vacuumized by the vacuum pump.
The method for measuring the aperture of the tobacco draw resistance standard rod, wherein preferably, a gas pressure sensor is arranged in the sealed box body.
The method for measuring the aperture of the tobacco draw resistance standard rod is characterized in that a display panel is arranged on the sealed box body, and the display panel is connected with the gas pressure sensor.
The invention provides a method for measuring the aperture of a standard tobacco resistance-absorbing rod, which adopts a technology of filling a hole with a gas medium to realize the accurate detection of the aperture on the standard tobacco resistance-absorbing rod.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
FIG. 1 is a flow chart of a method for measuring the pore diameter of a standard tobacco draw resistance rod according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a standard tobacco draw resistance rod;
fig. 3 is a schematic structural diagram of a sealed box body.
Description of reference numerals:
100-tobacco draw resistance standard rod 110-hole
200-sealed case 210-interface 220-display panel
Detailed Description
Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the disclosure, its application, or uses. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments are to be construed as merely illustrative, and not as limitative, unless specifically stated otherwise.
As used in this disclosure, "first", "second": and the like, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "upper", "lower", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
In the present disclosure, when a specific component is described as being located between a first component and a second component, there may or may not be intervening components between the specific component and the first component or the second component. When it is described that a specific component is connected to other components, the specific component may be directly connected to the other components without having an intervening component, or may be directly connected to the other components without having an intervening component.
All terms (including technical or scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
As shown in fig. 1 to 3, an embodiment of the present invention provides a method for measuring the aperture of a standard tobacco draw resistance rod, which includes the following steps:
step S1, the sealed box 200 is evacuated.
Step S2 is performed to inject a set amount of argon gas into the sealed box 200. Wherein the argon gas may also be replaced by nitrogen gas.
Step S3, a first volume of argon gas in the sealed enclosure 200 is measured.
And step S4, putting the tobacco resistance standard rod 100 to be detected into the sealed box body 200.
Step S5, the sealed box 200 is evacuated.
And step S6, injecting a set amount of argon into the sealed box body 200 provided with the tobacco draw resistance standard rod 100 to be detected.
And step S7, measuring a second volume of argon in the sealed box body 200 filled with the tobacco draw resistance standard rod 100 to be detected.
And step S8, subtracting the second volume from the first volume to obtain the solid volume of the tobacco draw resistance standard rod 100 to be detected.
Wherein the solid volume is the volume of the solid portion of the standard tobacco draw resistance rod 100 that does not include the hole 110.
And step S9, measuring the profile volume of the tobacco resistance-suction standard rod 100 to be detected.
The profile volume refers to the overall volume of the column structure of the outer profile of the standard tobacco draw resistance rod 100, i.e., the volume including the holes 110.
And step S10, subtracting the solid volume from the contour volume to obtain the total volume of the holes on the standard tobacco draw resistance rod 100 to be detected.
It will be appreciated that the standard tobacco draw resistance rod is generally provided with a plurality of apertures 110, the total volume being the sum of the volumes of the plurality of apertures 110.
And step S11, calculating according to the number of the holes 110, the length and the total volume of the standard tobacco resistance suction rod 100 to be detected to obtain the diameter of the holes.
Wherein, because the hole 110 runs through the standard tobacco resistance rod 100, the length of the standard tobacco resistance rod 100 is the length of the hole.
Specifically, the diameter of the hole may be obtained by calculation according to the following formula:
wherein D represents the diameter of the hole, V1Representing a first volume, V2Indicating the second volume, L the length dimension of the standard rod of tobacco resistance to draw to be detected and N the number of holes.
Further, as shown in fig. 3, an interface 210 for connecting a vacuum pump may be disposed on the sealed box 200, and the sealed box may be evacuated by the vacuum pump.
Further, a gas pressure sensor is arranged in the sealed box body; because the same amount of argon gas needs to be injected before and after the tobacco resistance suction standard rod to be detected is placed into the sealed box body, after the tobacco resistance suction standard rod to be detected is placed, the space in the sealed box body is relatively reduced, and after the same amount of argon gas is injected, the change of the air pressure in the sealed box body can be caused, so that the change of the air pressure in the sealed box body can be detected through the gas pressure sensor, and the volume of the gas in the sealed box body can be obtained or obtained according to the amount and the pressure of the gas.
Further, a display panel 220 may be further disposed on the sealed box, and the display panel 220 is connected to the gas pressure sensor to display pressure or pressure data detected by the gas pressure sensor.
The method for measuring the aperture of the standard tobacco resistance-absorbing rod provided by the embodiment of the invention adopts a technology of filling the aperture with a gas medium, and realizes the accurate detection of the aperture on the standard tobacco resistance-absorbing rod.
Thus, various embodiments of the present disclosure have been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.
Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that various changes may be made in the above embodiments or equivalents may be substituted for elements thereof without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.
Claims (5)
1. A method for measuring the pore diameter of a standard tobacco draw resistance rod is characterized by comprising the following steps:
vacuumizing the sealed box body;
injecting a set amount of argon into the sealed box body;
measuring a first volume of argon gas in the sealed box;
putting a tobacco resistance-absorbing standard rod to be detected into a sealed box body;
vacuumizing the sealed box body;
injecting the set amount of argon into the sealed box body filled with the tobacco resistance-suction standard rod to be detected;
measuring a second volume of argon in the sealed box body filled with the tobacco resistance-suction standard rod to be detected;
subtracting the second volume from the first volume to obtain the entity volume of the tobacco draw resistance standard rod to be detected;
measuring the profile volume of the tobacco resistance-absorbing standard rod to be detected;
subtracting the entity volume from the outline volume to obtain the total volume of the holes on the tobacco resistance-suction standard rod to be detected;
calculating according to the number of the holes, the length of the standard tobacco resistance suction rod to be detected and the total volume to obtain the diameter of the holes;
the diameter of the hole is obtained by calculation according to the following formula:
wherein D represents the diameter of the hole, V1Representing a first volume, V2Indicating the second volume, L the length dimension of the standard rod of tobacco resistance to draw to be detected and N the number of holes.
2. The method for measuring the aperture of the tobacco draw resistance standard rod according to claim 1, wherein the step of measuring the profile volume of the tobacco draw resistance standard rod to be detected specifically comprises the following steps:
measuring the length size and the end face diameter of the tobacco resistance standard rod to be detected by adopting a nanometer three-coordinate system;
and calculating to obtain the profile volume of the standard tobacco resistance rod to be detected according to the length size and the end surface diameter.
3. The method for measuring the aperture of the tobacco draw resistance standard rod according to claim 1, wherein an interface for connecting a vacuum pump is arranged on the sealed box body, and the sealed box body is vacuumized by the vacuum pump.
4. The method of measuring the pore diameter of a standard tobacco draw resistance rod according to claim 1, wherein a gas pressure sensor is provided in the sealed box.
5. The method for measuring the aperture of the tobacco draw resistance standard rod according to claim 4, wherein a display panel is arranged on the sealed box body, and the display panel is connected with the gas pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010525264.4A CN111521135B (en) | 2020-06-10 | 2020-06-10 | Method for measuring aperture of tobacco suction resistance standard rod |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010525264.4A CN111521135B (en) | 2020-06-10 | 2020-06-10 | Method for measuring aperture of tobacco suction resistance standard rod |
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| Publication Number | Publication Date |
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| CN111521135A CN111521135A (en) | 2020-08-11 |
| CN111521135B true CN111521135B (en) | 2021-09-17 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63263405A (en) * | 1987-04-22 | 1988-10-31 | Komatsu Ltd | Hole shape measuring method by air micrometer |
| CN102095836A (en) * | 2011-01-19 | 2011-06-15 | 云南烟草科学研究院 | Method for determining tobacco leaf specific surface, pore volume and pore diameter |
| CN102564892B (en) * | 2011-12-09 | 2015-05-06 | 浙江中烟工业有限责任公司 | Method for measuring pressure drop reduction value of draw resistance standard rod and method for detecting reasonability of design of suction pipeline of draw resistance tester by using value |
| DE102012203579B3 (en) * | 2012-03-07 | 2013-06-06 | Hauni Maschinenbau Ag | Measuring device and measuring method for determining a measured variable at one end of a rod-shaped product of the tobacco processing industry |
| CN107677335B (en) * | 2017-11-03 | 2024-04-30 | 常州广为仪器科技有限公司 | Device and method for measuring volume and porosity of object and vacuum gas sealing method |
| CN109916319A (en) * | 2019-02-27 | 2019-06-21 | 河南中烟工业有限责任公司 | A kind of positive pressure blowing type master bar bore diameter measuring method |
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