LU500081B1 - Method for measuring volume and bulk density of solid object - Google Patents
Method for measuring volume and bulk density of solid object Download PDFInfo
- Publication number
- LU500081B1 LU500081B1 LU500081A LU500081A LU500081B1 LU 500081 B1 LU500081 B1 LU 500081B1 LU 500081 A LU500081 A LU 500081A LU 500081 A LU500081 A LU 500081A LU 500081 B1 LU500081 B1 LU 500081B1
- Authority
- LU
- Luxembourg
- Prior art keywords
- container
- fine particles
- volume
- bulk density
- mass
- Prior art date
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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
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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
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- 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
A method for measuring object bulk density, comprising the following steps: preparing a container with mass and volume known, and uniform fine particles. First, filling the container with fine particles, obtaining the total mass m1 by weighing, to obtain the bulk density of the fine particles, then weighing and recording the object?s mass. Taking some fine particles out of the container for preservation, keeping little fine particles at the bottom of the container, putting solid objects to be measured into the container, filling the container with fine particles taken out for preservation, weighing and recording the mass of the remaining fine particles taken out of the container, to calculate volume of the remaining fine particles to obtain volume of measured object, based on the result, then calculating the bulk density of the measured object.
Description
DESCRIPTION Method for measuring volume and bulk density of solid object
TECHNICAL FIELD This invention relates to the method for measuring volume and bulk density of irregular solid obiect, particularly, the invention is suitable for measuring the water soluble objects
BACKGROUND in daily Hfe, we usually measure the volume of solid matter to calculate the bulk density, which can be used to evaluate the quality and purity of the matier or determine the authenticity of objects, such as the specific gravity of wheat and com, and the authenticity of granular plastics and granular fertilizers, Bulk density of object, which indicates the mass of the object per unit volume. Therefore, to measure the bulk density of object, is usually necessary to measure the mass and volume of the object The quality of object is easy to measure and can be obtained by weighing with a balance. However, the volume measurement of object is complicated. For regular object, the volume of objects can be calculated by measuring the extemal dimensions of objects, insoluble solid object Can also be determined by immersion in water. However, His very difficult to measure the volume of granular solid matier which is easy {0 absorb water, can not be immersed in water or guid, or has irregular surface and small volume, such as clods, cork, sponge, granular fertilizer, etc, Therefore, iis very important to find a method to measure the voiume and bulk density of solid matier.
SUMMARY The invention provides a method for measuring the bulk density of a solid object, which can overcome the defects existing in the prior art
The method for measuring the bulk density of a solid object comprises the following steps! preparing fine particles with uniform texture and a container with mass m and volume v known in advance: {1} Filling the container with fine particles and making it Aush with the upper edge of the container, weighing and recording the total mass of fine particles and the container as mq; (2) Calculating the bulk density (Ocarticles) of fing particles in step (1) according to formula © Oparticiss (M1 -M)/V1 OD {3} Weighing and recording the mass of the measured object as Ma; (4) Taking some fine particles out of the container for preservation, leaving only fine particles of 2-3 om thick at the bottom of the container, putting the object to be measured into the container, letting the highest point of the object to be measured slightly lower than the upper edge of the container, filling the container with the fing particles previously taken out of the container and keeping the surface of the fine particies flush with the upper edge of the container.
(5) Weighing and recording the mass me of the remaining fine particles outside of the container in preservation (6) Calculating the volume v of the remaining fine particles {(Voniea) in sien (5) according to formula (2) Wobject = Ma /Dparticle (2) (7) Calculating the bulk density of the object to be measured (Degen) according to formula (3), Pebjeet = Ma /Vobjact © The contents of steps 1, 2, 4 5 and © described above are the methods for measuring the volume of solid objects, Preferably, the particle size of the fine particles used in the method of the present invention is 20-40 meshes, which can make the particles fully contact and fill the surface of the measured objedt, thus greatly improving the measurement accuracy.
Freferably, the fine particles used in the method of the present invention are gravel, and the containers used are glass containers. The container used in the invention is made of glass materiai with limited thermai deformation, which can make the measurement more accurate.
The problem of measuring the volume and bulk density of solid objects with complex shapes exists in the prior art can be satisfaclorily solved, and at the same time, the measurement precision is higher by the method provided by the present invention.
DESCRIPTION OF THE INVENTION The invention will be explained with embodiments described below.
in this embodimant, the particles used are quartz sand with a particle size of 20- 40 meshes, and the container used is a glass with a volume of 326ml and a mass of 110 grams.
Take a glass with a flat top edge, the volume is 326 mi, and the mass is 110 grams. Choose 20-40 mesh quartz sand for laboratory use, fill the glass, and scrape the top of the glass flat with a ruler. The mass of a glass filled with sand is 265.65 grams. According to formula (1), the bulk density of quartz sand is calculated to be
1.398g/0M3 {hulk density of quartz sand) Leaving 2 om thick quartz sand at the botiom of the glass, transfer the rest quartz sand into a 250m beaker, put an irregular object in the glass, fill the glass with additionsl quartz sand, and scraps the top of the glass flat with a ruler. According to the formula (2), the volume of quartz sand is calculated to be 9.34 cubic centimeters, which is equal to the volume of rregular objects, The mass of the irregular object is 13.099 after weighing on the balance, and the bulk density of this object is 1 40g/cm° according to formula (3).
Claims (5)
1. Method for measuring volume and bulk density of solid object is characterized in preparing uniform fine particles and a container with mass {m} and volume (Vi) known, the measurement is executed as the steps described below: {1} filling the container with fine particles and making i flush with the upper edge of the container, weighing and recording the total mass of fine particles and the container as my (2) calculating the bulk density of fine particles p particles in step (1) according ic formula (0) Opatises (M 1 -M)/V 1 © (23) weighing and recording the mass of the measured object as my; {4} taking some fine particles out of the container for preservation, leaving only fine particles of 2-3 om thick at the bottom of the container, pulling the object to be measured into the container, letting the highest point of the object io be measured slightly lower than the upper edge of the container, filling the container with the fine particles previously taken out of the container and keeping the surface of the fine particies flush with the upper edge of the container, (5) weighing and recording the mass m of the remaining fine particles outside of the container in preservation, (6) calculating the volume v of the remaining fine particles in step (5) according to formula (2) WVobject = M2 /D particle (2) {7} calculating the bulk density of the object to be measured, according to formula @ object = Ma / Vobjeet (3).
2. Method for measuring volume and bulk density of solid object is characterized in preparing uniform fins particles and a container with mass {m} and volume (vy) known, the measurement is executed as the steps described below: (3) taking some fine particles out of the container for preservation, leaving only fine particles of 2-3 om thick at the bottom of the container, putting the object to be measured into the container, letting the highest point of the object to be measured slightiy lower than the upper edge of the container, filling the container with the fine particles previously taken out of the container and Keeping the surface of the fine particies flush with the upper edge of the container, {4} weighing and recording the total mass of the remaining fine particles taken out of the container and the container as ma (5) according to formula (2), calculating the volume v of the remaining fine particles in step (4), Voniea = Ma /D particle 2
3. According to claim 1, method for measuring volume and bulk density of solid object or claim 2, method for measuring the volume of a solid object is characterized in the particle size of the fine particles is 20-40 meshes.
4 According to claim 1 or claim 2 or claim 3, the method described is characterized in that the described fing particies are gravel, & According to claim 4, the method described is characterized in that the described container is glass container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU500081A LU500081B1 (en) | 2021-04-26 | 2021-04-26 | Method for measuring volume and bulk density of solid object |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU500081A LU500081B1 (en) | 2021-04-26 | 2021-04-26 | Method for measuring volume and bulk density of solid object |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU500081B1 true LU500081B1 (en) | 2021-10-26 |
Family
ID=78372232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU500081A LU500081B1 (en) | 2021-04-26 | 2021-04-26 | Method for measuring volume and bulk density of solid object |
Country Status (1)
| Country | Link |
|---|---|
| LU (1) | LU500081B1 (en) |
-
2021
- 2021-04-26 LU LU500081A patent/LU500081B1/en active IP Right Grant
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Patent granted |
Effective date: 20211026 |