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Measurement method for density of solid material

A solid material, density measurement technology, applied in the field of experimental teaching in colleges and universities, can solve the problems of complicated measurement and low measurement accuracy, and achieve the effect of simple method and high measurement accuracy

Inactive Publication Date: 2013-09-25
HUNAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Density is a physical parameter of matter. The common methods for measuring the density of solid materials include: radioactive principle measurement method, unequal arm balance method, microwave technology measurement method and indirect measurement method using Archimedes' law, etc. These methods all have measurement accuracy Disadvantages of low height and complicated measurement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1 step of the present invention:

[0014] a. Use an electronic balance to measure the mass m of the solid material sample to be tested in the air 3 ;

[0015] b, will contain the density as ρ 0 The water container is placed on the electronic balance;

[0016] c. Tie one end of the thin wire to the special container for samples, hold the other end of the thin wire with your hand, and immerse the special container for solid material samples in water, but not in contact with the container holding the water, and the reading of the electronic balance is m 2 ;

[0017] d. Put the solid material sample to be tested in the special sample container, pinch the other end of the thin wire with your hand, and immerse the special sample container containing the solid material sample in water together, but do not touch the container. Electronic balance reading m 4 ;

[0018] e. by The density of the solid material sample to be measured can be obtained, where, ρ 0...

Embodiment 2

[0019] Embodiment 2 steps of the present invention:

[0020] a. Use an electronic balance to measure the mass m of the solid material sample to be tested in the air 3 ;

[0021] b. Will contain the density as ρ 0 The water container is placed on the electronic balance;

[0022] c. Use one end of the thin wire to tie the special sample container, and fix the other end of the thin wire to a bracket. Submerge the special sample container in water, but do not touch the container containing the water. The reading of the electronic balance is m 2 ;

[0023] d. Place the solid material sample to be tested in a special sample container, fix the other end of the thin wire on a bracket, and immerse the sample special container containing the solid material sample in water together, but do not touch the container, at this time electronic balance reading m 4 ;

[0024] e. by Get the density of the solid material sample to be tested, where, ρ 0 is the density of water in the cont...

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Abstract

The invention relates to a measurement method for the density of a solid material, which is mainly applied to experiment teaching of universities and technical secondary schools. The method comprises the following steps of: measuring the mass m3 of a solid material sample to be detected by an electronic scale; placing a container containing water with the density of Rho0 on the electronic scale, and immersing a special sample container into the water, wherein the special sample container does not contact the container for containing the water, and the reading of the electronic scale is m2; placing the solid material sample to be detected into the special sample container and immersing the sample and the sample container into the water, wherein the sample does not contact the sample container, and the reading of the electronic scale at the moment is m4; and solving the density of the sample to be detected. The method disclosed by the invention is simple, convenient, rapid and high in measurement precision and is applicable to solid material samples with different densities and different shapes.

Description

Technical field [0001] The invention relates to a method for measuring the density of solid materials, which is mainly used in experimental teaching in universities and technical secondary schools. Background technique [0002] Density is a physical parameter of matter. The common measurement methods for the density of solid materials include: radioactive principle measurement method, unequal arm balance method, microwave technology measurement method and indirect measurement method using Archimedes' law, etc. These methods all have measurement accuracy The shortcomings of low height and complicated measurement. Contents of the invention [0003] In order to overcome the above-mentioned deficiencies in the prior art, the present invention provides a method for measuring the density of solid materials, which can be used to measure the density greater than 1g / cm 3 The density of solid material samples can also be measured if the density is less than 1g / cm 3 The solid mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N9/08
Inventor 陈光伟文景王国友文宽逸文广为
Owner HUNAN UNIV OF TECH
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