Introduction: This machine adopts the light portable belt type design. It can be directly placed on the surface of the sample to be tested to measure the size of the contact angle formed on the surface of the droplet, thereby detecting the surface cleanliness and the treatment effect. Instrument applications: extra-large sample testing, such as LCD screens, solar substrates, etc.; special surfaces or samples that cannot be cut, such as walls, bathtubs, car bodies, etc.; field environments or assembly line operations, such as oil field production, road construction, printing, crystals Round and so on; Features: 1 Can be placed directly on the surface of the sample and it is not limited by the size of the sample. No need to cut the product, no separate sample stage 2 The unique design of the adjustment frame and precision sample addition system make the whole machine more stable, more convenient and accurate 3 High frame rate video camera and continuous zoom lens with continuously adjustable brightness of background light, making the captured image clear and without distortion 4Using patented vertical image capture system, combined with CAM7.1TM professional analysis software, automatic contact angle compensation 5 The power supply uses a large-capacity lithium battery that can be recharged. It can be used continuously for more than 80 hours without charging. 6 The software can obtain the contact angle value in various ways. The left and right contact angle values can be obtained separately, and the average contact angle value can be automatically obtained. 7 Software can be used for single shots, interval shots and continuous shots, as well as video images of droplet changes 8 Software provides functions such as coordinate indication, brightness adjustment, baseline assistance and fast memory auto trigger 9 has a powerful database management capabilities, save, print, raw data query and re-analysis can be achieved. Technical Parameters: Contact angle Measurement method: static drop method Calculation methods: volume angle method, volume high method, fitting method, automatic method Measurement results: Left contact angle, right contact angle, average contact angle, droplet contact point coordinate display Measuring range: 3°～180° Measurement error: ±0.1° (θ/2 method) Measurement resolution: 0.01° 2. Solid surface 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 dispersive force, polarity force, van der Waals component, Lewis acid/base component 3 shooting methods Single shot: After freezing the image, it can be saved as a bmp image Interval shooting: Set the number of picture frames arbitrarily between 1 and 3600 seconds Continuous capture: continuous shooting at 25 frames/second Video capture: shooting video files saved as playable AVI format 4. Optical imaging system Camera: 1/1.8′′ CMOS sensor, resolution 800×600, frame rate 25 fps Lens: 0.7 to 4.5 x zoom, manual focus, focus range ± 6.5mm Backlight source: LED cold light source, continuously adjustable brightness 5. Sample addition method: manual peristaltic pump plus liquid 6. Test sample size: length ≤∞, width ≤∞, height difference=0mm 7. Database management: indexing test information, saving, querying, loading and printing graphic reports, etc. 8. Instrument size: about W260 × D210 × H280mm 9. Instrument weight: about 2Kg 10. Use power: lithium battery + power adapter
Introduction: This machine adopts the light portable belt type design. It can be directly placed on the surface of the sample to be tested to measure the size of the contact angle formed on the surface of the droplet, thereby detecting the surface cleanliness and the treatment effect. Instrument applications: extra-large sample testing, such as LCD screens, solar substrates, etc.; special surfaces or samples that cannot be cut, such as walls, bathtubs, car bodies, etc.; field environments or assembly line operations, such as oil field production, road construction, printing, crystals Round and so on;
