Overview
JY-PHb contact angle meter is used to measure the contact angle between solid, liquid and gas three phases, and calculate the surface physical and chemical properties such as liquid adhesion to solid and solid surface energy by measuring contact angle. The instrument uses computer technology to transfer the ingested image to the computer for storage, analysis and printing. It has the characteristics of fast speed, accurate data and convenient operation. Degree of automation is high and Measurement accuracy is high.
Features
1. Automatic contact angle analysis function, using machine vision technology to automatically identify Baseline and droplet contour
2. Various test methods: static drop method, increasing or decreasing drop method, inclined plate method
3. Various contact angle analysis methods: Automatic analyzer, tangent method, measuring height method, measuring angle method, chord height method, ellipse fitting method
4. Video processing functions: small window preview, large window photo analysis, video recording and picture interception, single photo, continuous timing photo
5. Document and image management: Save a single image or all test data, and export the results to Excel.
6 surface energy calculation function: provide Fowkes equation, Owens equation, YGGF equation calculation method
7. High Accuracy measurement: contact angle Measurement range 0~ 180 °, display accuracy 0.1 °
Principle
The instrument is based on the Laplace equation theory, uses quadratic Linear dispersion fitting to calculate the contact angle value, and automatically recognizes the Baseline and the droplet contour through machine vision technology, reducing the influence of gravity on the droplet shape and eliminating human test errors. For pictures with obvious Baseline characteristics, automatic testing can be realized. For pictures with obvious Baseline characteristics, the location of Baseline needs to be manually specified.
Applications
Petroleum, chemical, paper, dyestuff, New materials research and manufacturing
Steps
1. Static drop method: drop liquid on the solid surface, take pictures after equilibrating the three-phase interface, and measure contact angle through software
2. Increase or decrease the droplet method: continuously increase the droplet to measure the forward angle or decrease the droplet to measure the backward angle
3. Tilt plate method: the electric rotating stage forms a tilt angle, and the forward and backward angles of the droplets are measured
4. Video processing: Take pictures or videos through the preview window, and take pictures regularly to analyze dynamic changes
5. Data analysis: use automatic or manual methods to analyze contact angles, save results and export data
Notice
• 64-bit Windows Operating system
• The memory is recommended to be above 4G, and the hard disk space is not less than 10G.
• For pictures with inconspicuous Baseline characteristics, you need to manually specify the Baseline location
• The luminance, contrast ratio, chroma and backlight luminance of the camera image need to be adjusted by software
• You can set the save path for videos and photos
• The photo result picture has zoom and crop functions
