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Surface tension measuring device and measuring method for droplet on vertical plate

A surface tension and measuring device technology, applied in the field of physical quantity measurement, can solve complex and multi-sample operation problems, and achieve the effect of simple equipment, ensuring accuracy and convenient operation

Pending Publication Date: 2019-07-05
SHAANXI UNIV OF SCI & TECH
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Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the present invention provides a surface tension measurement device and measurement method for liquid droplets on a vertical plate to solve the problem that the optical measurement method in the prior art needs more samples to be tested or the operation is complicated technical issues

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  • Surface tension measuring device and measuring method for droplet on vertical plate
  • Surface tension measuring device and measuring method for droplet on vertical plate
  • Surface tension measuring device and measuring method for droplet on vertical plate

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Embodiment Construction

[0037] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0038] Reference attached figure 1 As shown, the present invention provides a kind of liquid surface tension measurement device for droplet, comprises light source 1, measurement platform 2, glass sheet 3, linear array CCD4 and computer 5,

[0039] The light source 1 is used to generate a horizontal light beam, and the light source 1 adopts a laser; the glass sheet 3 is vertically arranged on the optical path of the light source 1, and the light source 1 and the linear array CCD4 are respectively arranged on both sides of the glass sheet 3; the droplet 6 to be tested is provided with a glass sheet 3 surface, the liquid ...

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Abstract

The invention discloses a surface tension measuring device and measuring method for a droplet on a vertical plate. The device comprises a light source, a glass plate, a linear array CCD and a computer, the light source is used for generating a horizontal light beam, the glass plate is arranged on an optical path as the vertical plate, a to-be-measured droplet is arranged on the surface of one side, close to the light source, of the glass plate, the to-be-measured droplet is penetrated by the light beam, the linear array CCD and the light source are respectively arranged at two sides of the glass plate, the linear array CCD and the light source are arranged in a corresponding manner, and the diffraction light intensity distribution after transmission of the to-be-measured droplet by the light beam is acquired through the linear array CCD and transmitted to the computer. According to the device and method, the to-be-measured droplet is arranged on the vertical glass plate, diffraction signals of the light beam are acquired and analyzed so that a liquid surface tension coefficient is obtained, a to-be-measured sample is only the droplet, the sampling of the to-be-measured droplet is small, the equipment is simple, and the operation is convenient.

Description

technical field [0001] The invention relates to the technical field of physical quantity measurement, in particular to a surface tension measuring device and a measuring method for liquid droplets on a vertical plate. Background technique [0002] The measurement of liquid surface tension coefficient is very important in many applied sciences and engineering fields. Traditional measurement methods include pull-off method, titration method, capillary method, maximum bubble pressure method, etc. In recent years, the technology of measuring surface tension coefficient based on optical method has been widely used For example, the laser reflection method is based on the knowledge of geometric optics, and the measurement of the surface tension coefficient is realized by studying the light field characteristics of the parallel laser beam reflected by the wetting effect curved liquid surface; the laser diffraction method is based on the capillary wave on the liquid surface Modulatio...

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Application Information

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IPC IPC(8): G01N13/02
CPCG01N13/02G01N2013/0208G01N2013/0283
Inventor 罗道斌骞来来师博秦毅盼岳宗敏
Owner SHAANXI UNIV OF SCI & TECH
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