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Water drop angle measurement test stand and measuring method of water drop angle

A technology of water drop angle and test bench, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of insufficient measurement accuracy of test instruments, and achieve the effect of compact structure, convenient and effective measurement

Inactive Publication Date: 2017-04-26
GUANGDONG UNIV OF TECH
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Problems solved by technology

At present, the testing methods of the existing water drop angle tester include the sessile drop method, the pendant drop method, the thin film method, and the visual measurement method. The measurement accuracy is only ±0.1. In some scientific research institutions and universities that study the surface properties of materials, The measurement accuracy of existing testers at this stage is far from enough

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  • Water drop angle measurement test stand and measuring method of water drop angle
  • Water drop angle measurement test stand and measuring method of water drop angle
  • Water drop angle measurement test stand and measuring method of water drop angle

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments in this embodiment, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0034] Please refer to Figure 1 to Figure 4 , figure 1 It is the front view of the water drop angle measuring device in the specific embodiment of the present invention, figure 2 for figure 1 Partial enlarged view of part A-A of the medium water drop angle measuring device, image 3 for figure 1 A-A sectional view of the medium water droplet angle measuring device, Figure 4 for figure 1 B-B cross-sectional view of the medium water droplet angle measuring ...

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Abstract

The invention discloses a test stand for measuring a water drop angle through a curve fitting differential method. The test stand is mainly composed of a support device, a vertical mobile device, a horizontal mobile device and a shooting device. According to the measuring method, an object load stand is moved to adjust positions of a tested object, a light source and a camera, a needle tube burette is moved downward, a picture is shot, and then the contact angle is measured through the curve fitting differential method. The provided test stand for measuring the water drop angle through the curve fitting differential method can adjust the position of the tested object before liquid titration, avoid errors generated due to motion of the liquid, and improve measurement precision.

Description

technical field [0001] The invention relates to the technical field of water drop angle measurement, in particular to an experimental device for measuring water drop angle by a curve fitting differential method. Background technique [0002] The water drop angle refers to the angle between the gas-liquid phase interface and the solid-liquid phase interface at the interface of solid, liquid and gas. The drop angle is a measure of the wetness of a solid surface and is titrated using a mostly sessate droplet. The function of the water drop angle measuring instrument is mainly used to test the contact angle of the surface of the object, and analyze and determine the adhesion, adhesion, hydrophobicity, cleanliness and other important indicators of the surface of the object through the angle value. It is mainly used for the hydrophobicity of the mobile phone glass coating Testing, anti-fingerprint coating spraying of camera lenses, cleanliness analysis of LED electronic component...

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Application Information

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IPC IPC(8): G01N13/00G01B11/26
CPCG01N13/00G01B11/26G01N2013/0208
Inventor 何金彬傅惠南黄辰阳潘奕创
Owner GUANGDONG UNIV OF TECH
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