Introduction: The automatic liquid contact angle measuring instrument is a new CAM7.1TM measurement software, which adds functions such as automatic measurement of contact angle, surface measurement, reference line aid and coordinate display. It is used to measure and analyze the contact angle of liquid on solid surface, the surface tension of liquid, droplet geometry, solid surface energy and its components, etc., to achieve the pro-/hydrophobicity analysis, wettability analysis, cleanliness of solid surface. Testing, evaluation of treatment effects, and analysis of processes such as competition, absorption, absorption and spreading of liquids. Widely used in chemical, pharmaceutical, food, electronics, printing and dyeing and spraying and many other fields Features: 1. Adopt high-strength, light-weight aluminum alloy bottom plate with an exclusive design of multi-dimensional precision mechanical positioning slides, coordinate control of the sample table, sample adding system, imaging system, adjust freely, have high stability and good level; 2. Using precision differential head drive, thread screw, linear ball guide and rack and pinion, etc. to ensure the flexibility of focal length adjustment and positioning, the smoothness of the movement of the sample stage in a wide range, and the accuracy of the liquid addition control of the sample adding system. Sex; 3. The precision sampling system adopts software setting and control. The stepper motor drives the sampler to add liquid. The droplet control accuracy is high and the operation is convenient. 4. High-resolution, high-acquisition CMOS cameras and large depth-of-field industrial lenses with superior parfocal performance and continuous zooming, with LED backlights that emit light evenly and continuously adjustable in brightness, make the contours of captured images clearer, especially Suitable for high-speed changes in dynamic processes such as spreading, adsorption and roll angle measurement analysis; Technical Parameters: Contact angle Measurement method: Static drop method Calculation method; Proportional angle method, quantitative height method, fitting method, automatic method Measurement results: Left contact angle, right contact angle, average contact angle, droplet contact point coordinates display Measuring range: 0°～180° Measurement error: ±0.1° (θ/2 method) Measurement resolution: 0.01° 2. Liquid surface tension Measurement method: hanging drop method Measurement results: surface tension, droplet geometry, droplet contact point coordinates display Measurement range: 0.01 to 1000mN/m Measurement accuracy: ±0.1% (relative to the measured value) Measurement resolution: 0.001mN/m Solid surface free energy Estimation method: Fowkes one-fluid method, OWRK two-fluid method, Wu harmonic mean two-liquid method, LW-AB three-fluid method Estimated results: Solid surface free energy and its polar, non-polar components 4. Shooting method Single shot: After freezing the image, it can be saved in bmp format Interval shooting: Set the number of picture frames arbitrarily between 1 and 3600 seconds Continuous capture: Continuous shooting at 25 frames/second Video capture: Capture video files saved as playable AVI format 5. Optical imaging system Camera: 1/1.8′′ CMOS sensor, resolution 800×600, frame rate 25 fps Lens: 0.7 to 4.5× zoom, manual focus, focus range ±20mm Backlight source: LED cold light source, continuously adjustable brightness 6. Sample adding system Sample loading method: Software control automatic Minimum liquid addition: 0.7μl/drop Accuracy: ±0.1μl (drops) 7. Sample table Platform size: L100×W100mm Move left and right: manual, stroke ± 43mm Move back and forth: Manual, stroke ± 50mm Move up and down: manual, stroke ± 10mm 8. Level control: level and software measurement, horizontal foot leveling 9. Database Management: Indexing test information, saving, querying, loading and printing graphic reports 10. Instrument size: about W650 × D280 × H590mm 11. Instrument weight: about 30kg 12. Use the power supply: AC220V 50HZ
Introduction: The automatic liquid contact angle measuring instrument is a new CAM7.1TM measurement software, which adds functions such as automatic measurement of contact angle, surface measurement, reference line aid and coordinate display. It is used to measure and analyze the contact angle of liquid on solid surface, the surface tension of liquid, droplet geometry, solid surface energy and its components, etc., to achieve the pro-/hydrophobicity analysis, wettability analysis, cleanliness of solid surface. Testing, evaluation of treatment effects, and analysis of processes such as competition, absorption, absorption and spreading of liquids. Widely used in chemical, pharmaceutical, food, electronics, printing and dyeing and spraying and many other fields
