CN105865974A - Method for determining density of cotton through water drainage technology - Google Patents
Method for determining density of cotton through water drainage technology Download PDFInfo
- Publication number
- CN105865974A CN105865974A CN201610191160.8A CN201610191160A CN105865974A CN 105865974 A CN105865974 A CN 105865974A CN 201610191160 A CN201610191160 A CN 201610191160A CN 105865974 A CN105865974 A CN 105865974A
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- Prior art keywords
- cotton gossypii
- packaging bag
- vacuum packaging
- density
- cotton
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/02—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/02—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume
- G01N2009/022—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume of solids
- G01N2009/026—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume of solids the volume being determined by amount of fluid displaced
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention relates to a method for determining the density of cotton through a water drainage technology. The method comprises the following steps: respectively measuring the volume of a vacuum packaging bag and the volume of a vacuum packaging bag provided with cotton by using a measuring cylinder water drainage technology, calculating the mass and the volume of cotton through a differential technology, and calculating the density of the cotton. The vacuum packaging bag is waterproof, so water absorption of the cotton is avoided, detection is convenient, the measurement error is small, and the result is accurate; and the determination method is simple and understandable, and is simple to operate.
Description
Technical field
The present invention relates to the assay method of a kind of compressible solids density, particularly relate to the close of puffy Cotton Gossypii
Degree assay method.
Technical background
Having a very important physical quantity in Middle School Physics teaching material, it is exactly density.At junior physics teaching material
Defined in density be a kind of intrinsic physical quantity of material itself, be the quality of unit volume, i.e.Simultaneously
The density measuring material is also the experimental technique that junior school student must grasp.Apparently according to formula material to be measured
Density, it is only necessary to know that this material mass and its actual volume just can calculate its density by formula
Come.For the solid body of regular geometry, its quality m can be measured by balance, by trip
Its volume measured by mark slide calliper rule, or directly measured the volume v of irregular material by graduated cylinder drainage,
Calculate its density.Problem is the solid to the puffy that compressibility is very strong and water absorbing capacity is the strongest
For material, said method obviously can not directly measure its volume, will improve experiment, to meet
Junior school student's assay method to Cotton Gossypii class solid matter density.
Patent (application number: 201510259317.1), uses pneumatic process to measure the density of Cotton Gossypii, to junior middle school from birth
Saying that this equipment is complicated, assay method is the most loaded down with trivial details, and the category that theoretical formula has understood beyond junior school student.
In order to solve disadvantages mentioned above, the present invention proposes a kind of simple actual effect and the measurement body consistent with junior school teaching material
Long-pending method, theoretical formula and experimental procedure are all among the understanding category of junior school student.
Summary of the invention
In order to overcome the deficiency in above-mentioned Cotton Gossypii density measurement technology, the invention provides a kind of assay method letter
The method that single, measurement result drainage accurately measures Cotton Gossypii density.
The technical solution adopted in the present invention is to comprise the steps of:
(1) it is m by load weighted quality1Vacuum packaging bag be placed in the graduated cylinder filling water, measure with drainage
The volume V of vacuum packaging bag1；
(2) vacuum packaging bag blower fan is dried up, Cotton Gossypii is put in vacuum packaging bag, true by vacuum pumping
Empty to 103～104Pa, and to weigh its gross mass be mz；
(3) vacuum packaging bag after evacuation is placed in the graduated cylinder filled with step (1) equivalent water, with row
Water law measures the cumulative volume V of vacuum packaging bag and Cotton GossypiiZ；
(4) basism2For the quality of Cotton Gossypii, v2For the volume of Cotton Gossypii, can calculate
The density p of Cotton Gossypii2。
Also include step (5) after above-mentioned steps (4): take and the Cotton Gossypii of step (2) weight such as not, weight
The operation of multiple step (1)～(4) detects, then averages, and is revised Cotton Gossypii density.
It is to utilize graduated cylinder drainage to measure respectively very that the drainage that the present invention provides measures the method for Cotton Gossypii density
Empty package bag and the volume of the vacuum packaging bag equipped with Cotton Gossypii, further according to differential technique calculate Cotton Gossypii quality and
Volume and then calculate the density of Cotton Gossypii, utilizes vacuum packaging bag waterproof, it is to avoid Cotton Gossypii water suction and also be easy to inspection
Surveying, it is ensured that measurement error is little, result is accurate, and assay method is simple, understandable, simple to operate, is suitable to
Middle school teaching is applied.
Detailed description of the invention
The now enforcement to technical scheme is further described.
(1) taking vacuum packaging bag, its quality that weighs with scale is m1, it is placed in the graduated cylinder equipped with 60mL water,
To being totally submerged, drainage is utilized to measure the volume V of this vacuum packaging bag1=V1'-60, V1' for being vacuum-packed
The volume V of corresponding water after bag submergence1′；
(2) vacuum packaging bag blower fan is dried up, Cotton Gossypii is put in this vacuum packaging bag, use vacuum pumping
Vacuum is to 103～104Pa, weigh with scale this equipped with Cotton Gossypii the vacuum packaging bag that is evacuated, count total matter
Amount is mz；
(3) will be equipped with Cotton Gossypii and the vacuum packaging bag being evacuated is placed in the amount filled with step (1) equivalent water
In Tong, measure the cumulative volume V of vacuum packaging bag and Cotton Gossypii with drainageZ=Vz'-60, Vz' true for be evacuated
The volume V of corresponding water after empty package bag submergencez′；
(4) basism2For the quality of Cotton Gossypii, v2For the volume of Cotton Gossypii, can calculate
The density p of Cotton Gossypii2。
(5) operation of the Cotton Gossypii repeat the above steps (1)～(4) that take Different Weight detects, then is averaged
Value, is revised Cotton Gossypii density, to ensure that result is more accurate.
Utilize the actual measured results such as table 1 below of the method:
Table 1 is the measured value of embodiment 1～4
As it can be seen from table 1 the assay method of the present invention, result is stable, has repeatability.
Claims (2)
1. the method that a drainage measures Cotton Gossypii density, it is characterised in that comprise the steps of:
(1) it is m by load weighted quality1Vacuum packaging bag be placed in the graduated cylinder filling water, measure with drainage
The volume V of vacuum packaging bag1；
(2) vacuum packaging bag blower fan is dried up, Cotton Gossypii is put in vacuum packaging bag, true by vacuum pumping
Empty to 103～104Pa, and to weigh its gross mass be mz；
(3) vacuum packaging bag after evacuation is placed in the graduated cylinder filled with step (1) equivalent water, with row
Water law measures the cumulative volume V of vacuum packaging bag and Cotton GossypiiZ；
(4) basism2For the quality of Cotton Gossypii, v2For the volume of Cotton Gossypii, can calculate
The density p of Cotton Gossypii2。
Drainage the most according to claim 1 measures the method for Cotton Gossypii density, it is characterised in that: described step
(4) step (5) is also included after: take and the Cotton Gossypii of step (2) weight such as not, repeat step (1)～(4)
Operation detect, then average, be revised Cotton Gossypii density.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610191160.8A CN105865974A (en) | 2016-03-30 | 2016-03-30 | Method for determining density of cotton through water drainage technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610191160.8A CN105865974A (en) | 2016-03-30 | 2016-03-30 | Method for determining density of cotton through water drainage technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105865974A true CN105865974A (en) | 2016-08-17 |
Family
ID=56626412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610191160.8A Pending CN105865974A (en) | 2016-03-30 | 2016-03-30 | Method for determining density of cotton through water drainage technology |
Country Status (1)
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| CN (1) | CN105865974A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404599A (en) * | 2016-12-12 | 2017-02-15 | 盐城工学院 | Testing device and testing method of straw vacuum conductivity performance |
| CN108627423A (en) * | 2017-03-22 | 2018-10-09 | 广东科达洁能股份有限公司 | A kind of automation coal device for detecting density and method |
| CN108627418A (en) * | 2017-03-22 | 2018-10-09 | 广东科达洁能股份有限公司 | A kind of coal density real-time measurement apparatus |
| CN108627419A (en) * | 2017-03-22 | 2018-10-09 | 广东科达洁能股份有限公司 | A kind of coal density real-time measurement system and method |
| CN108627421A (en) * | 2017-03-22 | 2018-10-09 | 广东科达洁能股份有限公司 | One kind automatically determining coal density devices |
| CN108627420A (en) * | 2017-03-22 | 2018-10-09 | 广东科达洁能股份有限公司 | One kind automatically determining coal density system and method |
| CN108801855A (en) * | 2018-07-15 | 2018-11-13 | 佛山奎丰商务咨询服务有限公司 | A kind of detection method of construction material intensity |
| CN109799167A (en) * | 2019-01-16 | 2019-05-24 | 青海盐湖工业股份有限公司 | A kind of measuring method of the heap density of potassium chloride |
| CN113587789A (en) * | 2021-07-23 | 2021-11-02 | 浙江理工大学 | Device for measuring Young modulus of metal wire based on drainage method |
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| EP0027104A1 (en) * | 1979-10-08 | 1981-04-15 | Slagteriernes Forskningsinstitut | A method for determining the properties of a material having plastic properties by determining its density, and an apparatus for carrying out the method |
| CN1370275A (en) * | 1999-06-25 | 2002-09-18 | 英思创新仪器公司 | Methods and appts. for sealing and analyzing material samples including uncompacted bituminous samples according to water displacement testing methods |
| US6684684B2 (en) * | 2000-05-30 | 2004-02-03 | Instrotek, Inc. | Systems and methods for determining the porosity and/or effective air void content of compacted material |
| CN1540311A (en) * | 2003-10-31 | 2004-10-27 | 华南理工大学 | Method for measuring density of mixture of compacted asphaltum |
| CN1789909A (en) * | 2005-12-20 | 2006-06-21 | 山东建筑工程学院 | Method and apparatus for measuring volume and density of small article |
| CN102052948A (en) * | 2010-11-16 | 2011-05-11 | 济南民天面粉有限责任公司 | Method for measuring volume of steamed bread |
| CN102721627A (en) * | 2011-03-29 | 2012-10-10 | 厦门钨业股份有限公司 | Method for detecting density of porous material |
| CN104807720A (en) * | 2015-05-20 | 2015-07-29 | 闫语童 | Method for measuring object density based on air pressure process |
-
2016
- 2016-03-30 CN CN201610191160.8A patent/CN105865974A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0027104A1 (en) * | 1979-10-08 | 1981-04-15 | Slagteriernes Forskningsinstitut | A method for determining the properties of a material having plastic properties by determining its density, and an apparatus for carrying out the method |
| CN1370275A (en) * | 1999-06-25 | 2002-09-18 | 英思创新仪器公司 | Methods and appts. for sealing and analyzing material samples including uncompacted bituminous samples according to water displacement testing methods |
| US6684684B2 (en) * | 2000-05-30 | 2004-02-03 | Instrotek, Inc. | Systems and methods for determining the porosity and/or effective air void content of compacted material |
| CN1540311A (en) * | 2003-10-31 | 2004-10-27 | 华南理工大学 | Method for measuring density of mixture of compacted asphaltum |
| CN1789909A (en) * | 2005-12-20 | 2006-06-21 | 山东建筑工程学院 | Method and apparatus for measuring volume and density of small article |
| CN102052948A (en) * | 2010-11-16 | 2011-05-11 | 济南民天面粉有限责任公司 | Method for measuring volume of steamed bread |
| CN102721627A (en) * | 2011-03-29 | 2012-10-10 | 厦门钨业股份有限公司 | Method for detecting density of porous material |
| CN104807720A (en) * | 2015-05-20 | 2015-07-29 | 闫语童 | Method for measuring object density based on air pressure process |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404599A (en) * | 2016-12-12 | 2017-02-15 | 盐城工学院 | Testing device and testing method of straw vacuum conductivity performance |
| CN106404599B (en) * | 2016-12-12 | 2023-09-19 | 盐城工学院 | Straw vacuum transmission performance testing device and testing method |
| CN108627423A (en) * | 2017-03-22 | 2018-10-09 | 广东科达洁能股份有限公司 | A kind of automation coal device for detecting density and method |
| CN108627418A (en) * | 2017-03-22 | 2018-10-09 | 广东科达洁能股份有限公司 | A kind of coal density real-time measurement apparatus |
| CN108627419A (en) * | 2017-03-22 | 2018-10-09 | 广东科达洁能股份有限公司 | A kind of coal density real-time measurement system and method |
| CN108627421A (en) * | 2017-03-22 | 2018-10-09 | 广东科达洁能股份有限公司 | One kind automatically determining coal density devices |
| CN108627420A (en) * | 2017-03-22 | 2018-10-09 | 广东科达洁能股份有限公司 | One kind automatically determining coal density system and method |
| CN108801855A (en) * | 2018-07-15 | 2018-11-13 | 佛山奎丰商务咨询服务有限公司 | A kind of detection method of construction material intensity |
| CN109799167A (en) * | 2019-01-16 | 2019-05-24 | 青海盐湖工业股份有限公司 | A kind of measuring method of the heap density of potassium chloride |
| CN113587789A (en) * | 2021-07-23 | 2021-11-02 | 浙江理工大学 | Device for measuring Young modulus of metal wire based on drainage method |
| CN113587789B (en) * | 2021-07-23 | 2024-01-19 | 浙江理工大学 | Device for measuring Young modulus of metal wire based on drainage method |
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Application publication date: 20160817 |