CN111272250A - Method for measuring volume and density of solid object - Google Patents
Method for measuring volume and density of solid object Download PDFInfo
- Publication number
- CN111272250A CN111272250A CN202010071485.9A CN202010071485A CN111272250A CN 111272250 A CN111272250 A CN 111272250A CN 202010071485 A CN202010071485 A CN 202010071485A CN 111272250 A CN111272250 A CN 111272250A
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- China
- Prior art keywords
- fine particles
- container
- measured
- volume
- density
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- 239000007787 solid Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000010419 fine particle Substances 0.000 claims abstract description 40
- 239000013618 particulate matter Substances 0.000 claims abstract description 15
- 238000005303 weighing Methods 0.000 claims abstract description 12
- 239000011521 glass Substances 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 7
- 238000001739 density measurement Methods 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 239000006004 Quartz sand Substances 0.000 description 9
- 239000000126 substance Substances 0.000 description 7
- 230000001788 irregular Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000003337 fertilizer Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F17/00—Methods or apparatus for determining the capacity of containers or cavities, or the volume of solid bodies
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The invention relates to a method for measuring the density of an object, in which fine particles of uniform texture and known mass (m) and volume (V) are prepared beforehand1) The container is filled with fine particles, and the fine particles are weighed to obtain the total mass m1According to rhoParticulate matter＝(m1‑m)/v1Obtaining the density rho of the fine particlesParticulate matterWeighing and recording the mass m of the measured objectObject to be measuredTransferring part of fine particles out of the container for storage, retaining a few fine particles at the bottom of the container, placing the solid matter to be measured into the container, filling the container with the fine particles transferred out of the container, weighing and recording the mass m of the remaining fine particles taken out of the container2And is in vObject to be measured＝m2/ρParticulate matterCalculating the volume of remaining fine particles to obtain vObject to be measuredAnd calculating the object to be measured based on the calculated dataThe density of (c). The invention satisfactorily solves the problems of volume and density measurement of solid objects with complex shapes, and has higher measurement precision.
Description
Technical Field
The invention relates to a method for measuring the density of an object. It is specifically stated that the present invention is not applicable to measuring the density of a hollow object.
Background
In daily life, the volume of a solid substance is usually measured to calculate the density, which can be used to evaluate the quality, purity or judge the authenticity of the substance, such as the specific gravity of wheat and corn, the authenticity of granular plastics and granular fertilizers.
The density of a substance, represents the mass of the substance per unit volume. Therefore, determining the density of a substance typically requires determining both the mass and volume parameters of the substance. The mass of the substance is relatively easy to measure and can be obtained by weighing with a balance. However, the volumetric measurement of the object is complex, and for a regular object, the volume of the object can be calculated by measuring the external dimensions of the object. For water-insoluble solid matter, the measurement can also be carried out by immersing in water. However, the volume measurement is very difficult for the particles which are easy to absorb water, can not be immersed in water or liquid, or have irregular surfaces and small volume, such as soil blocks, cork, sponge, granular fertilizer and the like. Therefore, it is important to find a method for measuring the volume and density of solid matter.
Disclosure of Invention
The present invention provides a method for measuring the density of a solid object that overcomes the deficiencies common in the prior art.
The method for measuring the density of the solid object of the invention is to prepare fine particles with uniform texture and a container with mass m and volume v in advance, and comprises the following measuring steps:
(1) the vessel is filled with fine particles and leveled with the upper edge of the vessel, and the fine particles and the total mass of the vessel are weighed and recorded as m1；
(2) Calculating the density ρ of the fine particles in step (1) according to the formula ①Particulate matter，
ρParticulate matter＝(m1-m)/v1①；
(3) Weighing and recording mass m of measured objectObject to be measured；
(4) Transferring part of fine particles out of the container for storage, only reserving the fine particles with the thickness of 2-3 cm at the bottom of the container, putting the solid matter to be measured into the container, enabling the highest position of the solid matter to be measured to be slightly lower than the upper edge of the container, filling the container with the fine particles transferred out of the container, and keeping the surface of the fine particles and the upper edge of the container to be flush;
(5) weighing and recording the mass m of the remaining fine particulate matter removed from the vessel2；
(6) The volume of the fine particles remaining in step (3) is calculated according to equation ②, and it is apparent that this volume is the volume v of the measured objectObject to be measured，
vObject to be measured＝m2/ρParticulate matter②；
(7) Calculating the density rho of the object to be measured according to the formula ③Object to be measured，
ρObject to be measured＝mObject to be measured/vObject to be measured③。
The steps 1, 2, 4, 5 and 6 in the above are the method for measuring the volume of the solid body. Preferably, the particle size of the fine particles used in the method is 20-40 meshes, so that the particles can be fully contacted and filled on the surface of a measured object, and the measurement precision is greatly improved.
Preferably, the fine particles used in the process of the invention are gravel and the vessel used is a glass vessel. The use of a glass material having a low thermal deformation for the container used in the present invention makes the measurement more accurate.
The invention can satisfactorily solve the problem of volume and density measurement of solid objects with complex shapes, which is relatively difficult to solve in the prior art, and has higher measurement precision.
Detailed Description
The invention is illustrated with reference to examples. The particles used in the embodiment are quartz sand with the granularity of 20-40 meshes, and the used container is a glass with the volume of 326ml and the mass of 110 g.
The method comprises the steps of taking a glass cup with a flat upper edge, weighing 326ml of the glass cup, weighing 110 g of the glass cup, filling the glass cup with 20-40-mesh laboratory quartz sand, scraping the upper edge of the glass cup with a ruler, weighing 565.65 g of the glass cup filled with the sand, calculating the density of the quartz sand to be 1.398 g/cc (the bulk density of the quartz sand) according to a formula ①, leaving 2 cm of quartz sand at the bottom of the glass cup, transferring the rest of the quartz sand into a 250 ml beaker, placing an irregular object in the glass cup, supplementing the quartz sand, filling the glass cup with the quartz sand, scraping the upper edge of the glass cup with the ruler, weighing 13.06 g of the rest of the sand, calculating the volume of the quartz sand to be 9.34 cc according to a formula ②, wherein the volume of the irregular object is equal to the volume of the irregular object, weighing 13.09 g of the irregular object on a balance, and calculating the density of the object to be 1.40 g/cc according to a formula ③.
Claims (5)
1. A method for measuring the density of a solid object, characterized in that fine particles of uniform texture and a container having a mass m and a volume v are prepared in advance, and the measuring steps are as follows:
(1) the vessel is filled with fine particles and leveled with the upper edge of the vessel, and the fine particles and the total mass of the vessel are weighed and recorded as m1；
(2) Calculating the density ρ of the fine particles in step (1) according to the formula ①Particulate matter，
ρParticulate matter＝(m1-m)/v1①；
(3) Weighing and recording mass m of measured objectObject to be measured；
(4) Transferring part of fine particles out of the container for storage, only reserving the fine particles with the thickness of 2-3 cm at the bottom of the container, putting the solid matter to be measured into the container, enabling the highest position of the solid matter to be measured to be slightly lower than the upper edge of the container, filling the container with the fine particles transferred out of the container, and keeping the surface of the fine particles and the upper edge of the container to be flush;
(5) weighing and recording the mass m of the remaining fine particulate matter removed from the vessel2；
(6) Calculating the volume v of the fine particles remaining from step (5) according to equation ②Object to be measured，
vObject to be measured＝m2/ρParticulate matter②；
(7) Calculating the specific gravity rho of the object to be measured according to the formula ③Object to be measured，
ρObject to be measured＝mObject to be measured/vObject to be measured③。
2. A method for measuring the volume of a solid object, characterized in that fine particles of uniform texture and a container of mass m and volume v are prepared beforehand, the measuring steps being as follows:
(1) the vessel is filled with fine particles and leveled with the upper edge of the vessel, and the fine particles and the total mass of the vessel are weighed and recorded as m1；
(2) Calculating the density ρ of the fine particles in step (1) according to the formula ①Particulate matter，
ρParticulate matter＝(m1-m)/v1①；
(3) Transferring part of fine particles out of the container for storage, only reserving the fine particles with the thickness of 2-3 cm at the bottom of the container, putting the solid matter to be measured into the container, enabling the highest position of the solid matter to be measured to be slightly lower than the upper edge of the container, filling the container with the fine particles transferred out of the container, and keeping the surface of the fine particles and the upper edge of the container to be flush;
(4) the remaining fine particles removed from the vessel and the total mass of the vessel were weighed and recorded as m2；
(5) Calculating the volume v of the fine particles remaining from step (4) according to equation ②Object to be measured，
vObject to be measured＝m2/ρParticulate matter②。
3. The method for measuring the density of a solid object according to claim 1 or the method for measuring the volume of a solid object according to claim 2, wherein the fine particulate matter has a particle size of 20 to 40 mesh.
4. A method according to claim 1 or 2 or 3, characterized in that the fine particles are gravel.
5. The method of claim 4 wherein said container is a glass container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010071485.9A CN111272250A (en) | 2020-01-21 | 2020-01-21 | Method for measuring volume and density of solid object |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010071485.9A CN111272250A (en) | 2020-01-21 | 2020-01-21 | Method for measuring volume and density of solid object |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111272250A true CN111272250A (en) | 2020-06-12 |
Family
ID=70996906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010071485.9A Pending CN111272250A (en) | 2020-01-21 | 2020-01-21 | Method for measuring volume and density of solid object |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111272250A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112986048A (en) * | 2021-02-22 | 2021-06-18 | 科吉思石油技术咨询(北京)有限公司 | Method and device for measuring volume and density of irregular rock sample |
| CN113324610A (en) * | 2021-03-31 | 2021-08-31 | 华北理工大学 | Ice cube volume measurement system |
| CN113790999A (en) * | 2021-07-29 | 2021-12-14 | 江苏沙钢集团有限公司 | Method and device for measuring density of irregular porous object |
Citations (7)
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| CN2462378Y (en) * | 2001-01-05 | 2001-11-28 | 中国石油化工股份有限公司 | Multifunctional instrument for detecting various kinds of solid granular properties |
| CN2660513Y (en) * | 2003-09-02 | 2004-12-01 | 北京矿冶研究总院 | Current-carrying spiral tube type ore pulp densimeter |
| CN102128766A (en) * | 2010-11-17 | 2011-07-20 | 中国矿业大学(北京) | Tester and method for testing physical parameters of porous solid material |
| CN102252940A (en) * | 2011-03-15 | 2011-11-23 | 吉林大学 | Soil density measurement method and special wax-sealed paper box thereof |
| CN104964895A (en) * | 2015-07-02 | 2015-10-07 | 陕西科技大学 | Method and apparatus for determining apparent density of pervasive solid substance |
| CN109238919A (en) * | 2018-09-30 | 2019-01-18 | 南京理工大学 | A kind of measurement method of shell density |
| WO2019023735A1 (en) * | 2017-08-02 | 2019-02-07 | Gekko Systems Pty Ltd | A sensor system |
-
2020
- 2020-01-21 CN CN202010071485.9A patent/CN111272250A/en active Pending
Patent Citations (7)
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| CN2462378Y (en) * | 2001-01-05 | 2001-11-28 | 中国石油化工股份有限公司 | Multifunctional instrument for detecting various kinds of solid granular properties |
| CN2660513Y (en) * | 2003-09-02 | 2004-12-01 | 北京矿冶研究总院 | Current-carrying spiral tube type ore pulp densimeter |
| CN102128766A (en) * | 2010-11-17 | 2011-07-20 | 中国矿业大学(北京) | Tester and method for testing physical parameters of porous solid material |
| CN102252940A (en) * | 2011-03-15 | 2011-11-23 | 吉林大学 | Soil density measurement method and special wax-sealed paper box thereof |
| CN104964895A (en) * | 2015-07-02 | 2015-10-07 | 陕西科技大学 | Method and apparatus for determining apparent density of pervasive solid substance |
| WO2019023735A1 (en) * | 2017-08-02 | 2019-02-07 | Gekko Systems Pty Ltd | A sensor system |
| CN109238919A (en) * | 2018-09-30 | 2019-01-18 | 南京理工大学 | A kind of measurement method of shell density |
Non-Patent Citations (2)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112986048A (en) * | 2021-02-22 | 2021-06-18 | 科吉思石油技术咨询(北京)有限公司 | Method and device for measuring volume and density of irregular rock sample |
| CN113324610A (en) * | 2021-03-31 | 2021-08-31 | 华北理工大学 | Ice cube volume measurement system |
| CN113790999A (en) * | 2021-07-29 | 2021-12-14 | 江苏沙钢集团有限公司 | Method and device for measuring density of irregular porous object |
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Application publication date: 20200612 |