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Solid density measuring method

A density measurement, solid technology, applied in specific gravity measurement, measurement devices, instruments, etc., can solve problems such as low measurement accuracy, inability to measure sample density, and slow measurement speed.

Inactive Publication Date: 2007-11-28
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These measurement methods have the shortcomings of low measurement accuracy, manual recording, and relatively slow measurement speed.
CN2051738U discloses " rock (ore) rock density measuring instrument " has improved test efficiency and precision than previous density test method, but because of being limited by sensor, there is also the same load cell used for larger or smaller samples of measuring range. The problem of large measurement accuracy error, due to the limitation of the technical conditions at that time, there is also the disadvantage that the amount of stored data is small and the transmission of data is not convenient
The above invention is for irregular and density less than 1g / cm 3 The density of the sample cannot be measured
Now for irregular and density less than 1g / cm 3 The density measurement of the sample has not yet seen related inventions and reports

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0022] If there is a standard object with known weight and volume on the measurement site, the function of "solid object density measuring device" can be used:

[0023] d. Use the "solid object density measuring device" to measure the weight P of the tested sample in the air 1 ;

[0024] e. Add a known weight Pm and volume V to the sample to be tested 1 The standard object (such as weight) is completely immersed in liquid or water, and P is measured with a "solid object density measuring device". 2 (P 2 It is the weight measured by the load cell after the test sample and the additional standard object can be completely immersed in liquid or water after synthesis);

[0025] f. Use the formula (3) to find the irregular and the density is less than 1g / cm 3 The density of the sample.

Embodiment 2

[0027] If there is no standard object with known weight and volume at the measurement site, the function of "solid object density measuring device" can be used:

[0028] a. Measure the weight Pm and volume V of a solid object (such as an iron block) with a "solid object density measuring device" 1 ;

[0029] b. Measure the weight P of the tested sample in the air with the "Solid Object Density Measuring Device" 1 ;

[0030] c. Attach the measured solid object to the tested sample and completely immerse it in liquid or water, and use the "solid object density measuring device" to measure P 2 (P 2 It is the weight measured by the load cell after the test sample and the additional standard object can be completely immersed in liquid or water after synthesis);

[0031] d. Use the formula (3) to find the irregular and the density is less than 1g / cm 3 The density of the sample.

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Abstract

The invention discloses a measuring method for density physical parameter of solid material or other solid specimen, especially the measuring method for physical parameter of solid material specimen with any shape and density less than 1g / cm3. Based on the function of density measuring device for solid substance, weight P1 of measured specimen is measured in air by the density measuring device for solid substance. A standard substance with known weight and cubage is added on the measured specimen and they are immerged into liquid or water completely. P2 is measured by the density measuring device for solid substance. By formula (3) the density of specimen with irregular shape and density smaller than 1g / cm3 can be obtained. The density measuring method for specimen with irregular shape and density smaller than 1g / cm3 can be solved and density measurement for specimen with density smaller than 1g / cm3 can be realized. Analysis for geophysical exploration and building material or measuring class of specimen can be added.

Description

Field of invention: [0001] The invention relates to a method for measuring density physical parameters of solid materials or other solid specimens, especially a method for measuring density physical parameters of solid materials with arbitrary shapes. Background technique: [0002] Density is a physical parameter of matter that is used in many fields. There are many methods for measuring the density of solid specimens. Such as the use of radioactive principle measurement method, unequal arm balance method, microwave technology measurement method and indirect measurement method using Archimedes' law. These measurement methods all have the disadvantages of low measurement accuracy, manual recording, and relatively slow measurement speed. CN2051738U discloses " rock (ore) rock density measuring instrument " has improved test efficiency and precision than previous density test method, but because of being limited by sensor, there is also the same load cell used for larger or s...

Claims

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Application Information

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IPC IPC(8): G01N9/00
Inventor 凌振宝王君
Owner JILIN UNIV
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