A contact angle measuring device
A technology for measuring devices and contact angles, applied in the direction of measuring devices, instruments, surface/boundary effects, etc., can solve problems that affect measurement accuracy and errors cannot be completely eliminated, and achieve error resolution, temperature stability, and high measurement accuracy Effect
Active Publication Date: 2022-03-29
瑞之路(厦门)眼镜科技有限公司
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Problems solved by technology
[0004] Most of the existing contact angle measurement methods rely on image processing. Due to optical limitations, especially near the three-phase contact line, there will be inherent errors. Although the error of the contact angle can be reduced by improving the image resolution, but This error cannot be completely eliminated, affecting the measurement accuracy
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[0023] To further illustrate the various embodiments, the present invention is provided with accompanying drawings. These drawings are a part of the disclosure of the present invention, which are mainly used to illustrate the embodiments, and can be combined with related descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should understand other possible implementations and advantages of the present invention. Components in the figures are not drawn to scale, and similar component symbols are generally used to denote similar components.
[0024] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.
[0025] Such as Figure 1-3 As shown, a contact angle measurement device includes a light source 2, a container 1, a photodetector 7, a bubble generating unit, a processing unit 6 and a temperature controller 100, and t...
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The invention discloses a contact angle measuring device, which comprises a light source, a container, a photodetector, a bubble generating unit, a processing unit and a temperature controller. The container includes a first side wall and a second side wall opposite to each other. Made of light-transmitting material, the inside of the container is filled with light-transmitting liquid, the light source is a monochromatic light source, and the monochromatic light emitted by the light source passes through the first side wall and enters the first side wall and the liquid at a total reflection angle or greater than the total reflection angle The interface of the interface, the bubble generation unit is used to generate a bubble in contact with the inner surface of the first side wall, the detection surface of the photodetector is sealed through the second side wall and is in contact with the liquid, and is used to detect monochromatic light passing through the liquid The distribution of light intensity, the output terminal of the photodetector is connected to the processing unit, and the temperature controller is used to control the temperature of the container and the liquid. The invention realizes the measurement of the contact angle between the light-transmitting liquid and the light-transmitting solid surface, can effectively solve the error caused by the calculation of the captured image and the error caused by the image pixel, and has high precision.
Description
technical field [0001] The invention belongs to the field of contact angle measurement, in particular to a contact angle measurement device. Background technique [0002] The wettability of solid surfaces plays an important role in many fields such as artificial organs and biomaterials. Contact angle is an important method to indirectly measure the wettability of a solid surface. [0003] At present, most of the measurement of surface contact angle is to analyze the contact angle by taking images. For example, the published patent: CN102507390A discloses a static contact angle detection method when hydrophobic. First, collect the water drop image, and then analyze the water drop image. Carry out analysis, select and specify the algorithm for water droplets under different conditions, and finally obtain the contact angle. Public patent: CN102507391A provides a method for detecting the static contact angle of water droplets when hydrophilic, including: obtaining an image of ...
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IPC IPC(8): G01N13/02
CPCG01N13/02G01N2013/0208G01N2013/0266G01B11/26
Inventor 孙栋宋鲁明林洪沂董志鹏刘虹周贤建穆瑞珍
Owner 瑞之路(厦门)眼镜科技有限公司