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Liquid density real-time measurement method

A liquid density, real-time measurement technology, applied in the experimental teaching of technical secondary schools, large fields, can solve the problems of complicated measurement, low measurement accuracy, inability to perform long-distance measurement and transmission, etc., to achieve long-distance real-time measurement and transmission, The effect of high measurement accuracy and simple method

Inactive Publication Date: 2013-10-09
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 liquid density measurement methods include: conventional method, density bottle method, densitometer method, buoyancy method, floating body method, etc. These methods have the disadvantages of low measurement accuracy and complicated measurement, especially Cannot carry out long-distance measurement and transmission

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0007] Embodiment 1 step of the present invention:

[0008] a. Prepare a solid that is insoluble in the liquid to be tested and whose density is greater than that of the liquid to be tested;

[0009] b. One end of the thin wire is tied to the above-mentioned solid, and the other end of the thin wire is fixed on the force-sensitive sensor, and the solid is immersed in water, but not in contact with the water container, and the electrical signal output by the force-sensitive sensor passes through The amplifier is amplified, adjust the magnification of the amplifier, so that the meter directly displays the density of water ρ 0 value;

[0010] c. One end of the thin wire is tied to the above-mentioned solid, the other end of the thin wire is fixed on the force-sensitive sensor, and the solid is immersed in the liquid to be tested, but not in contact with the container containing the liquid, the value directly displayed by the meter is is the density of the liquid to be measured...

Embodiment 2

[0011] Embodiment 2 steps of the present invention:

[0012] a. Prepare a solid that is insoluble in the liquid to be tested and whose density is greater than that of the liquid to be tested;

[0013] b. One end of the thin wire is tied to the above-mentioned solid, and the other end of the thin wire is fixed on the force-sensitive sensor, and the solid is immersed in water, but not in contact with the water container, and the electrical signal output by the force-sensitive sensor passes through A / D conversion, data acquisition and display of water density by computer ρ 0 value;

[0014] c. One end of the thin wire is tied to the above-mentioned solid, the other end of the thin wire is fixed on the force-sensitive sensor, and the solid is immersed in the liquid to be tested, but not in contact with the container containing the liquid, and the output of the force-sensitive sensor is The electrical signal is converted by A / D, and the data is collected and displayed by the com...

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Abstract

The invention discloses a liquid density real-time measurement method, which can be used for accurately and rapidly measuring the density of various liquids and carrying out remote real-time measurement and transmission. The liquid density real-time measurement method comprises the following steps of: 1, preparing a solid which is insoluble in a liquid to be measured and has the density larger than that of the liquid to be measured; 2, tying the solid by one end of a thin wire, fixing the other end of the thin wire on a force sensor, and immersing the solid into the liquid with rho 0 as the known density without contacting a vessel used for containing the liquid; 3, amplifying an electric signal output by the force sensor by virtue of an amplifier, carrying out reading by virtue of a secondary meter or directly carrying out A / D conversion on the electric signal, collecting and displaying data by a microcomputer, and regulating the amplification factor of the amplifier to enable the meter to directly display the rho 0 value as the known density; and 4, immersing the solid into the liquid to be measured without contacting the vessel used for containing the liquid, so that the meter directly displays a rho x value as the density of the liquid to be measured.

Description

Technical field [0001] The invention relates to a real-time measurement method for liquid density, 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 liquid density measurement methods include: conventional method, density bottle method, densitometer method, buoyancy method, floating body method, etc. These methods have the disadvantages of low measurement accuracy and complicated measurement, especially Long-distance measurement and transmission cannot be performed. Contents of the invention [0003] In order to overcome the deficiencies of the above-mentioned prior art, the present invention provides a method for real-time measurement of liquid density, which can accurately and quickly measure the density of various liquids, and can perform long-distance real-time measurement and transmission. [0004] The technical scheme that the present inve...

Claims

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Application Information

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