Dynamic Contact Angle Meter

Product Introduction

The Optical Contact Angle Measuring Instrument measures the contact angle of a liquid on a solid material. It is mainly used to characterize the wettability of a liquid on a solid surface. Using optical imaging to capture the droplet image, computer software fits the droplet contour through a mathematical model to obtain the contact angle or surface tension, and performs surface energy calculation and wettability analysis.

Application Scope

It can be widely used in materials research, industrial coatings, mobile phone manufacturing, biomedicine, electronic circuits, textile fibers, petroleum extraction, aerospace and other fields.

Executive Standards (partial)

1. JJF 2099-2024 Calibration Specification for Optical Contact Angle Measuring Instruments

2. GB/T 30693-2014 Measurement of the contact angle between a plastic film and water

3. GB/T 30447-2013 Measurement method for contact angle of nano-film

4. GB/T 42694-2023 Testing and evaluation of surface anti-wetting properties of textiles - contact angle and rolling angle method

5. ASTM D 724-1999 (2003) Standard test method for surface wettability of paper (contact angle method)

Product Features

1. High-precision, wide-range measurement capability

Supports both contact angle measurement and surface / interfacial tension measurement, meeting the multi-scenario testing needs of different materials and liquid systems.

2. Multi-functional analysis modules and intelligent algorithms

Built-in multi-mode measurement methods support wettability analysis, surface energy calculation, advancing / receding angle and hysteresis angle measurement, adhesion work / immersion wetting work / spreading coefficient, and multi-point automatic intelligent contact angle measurement, providing comprehensive interfacial property evaluation.

3. ★ Self-developed patented algorithm

The self-developed, authorized improved Young-Laplace patented algorithm can precisely measure the contact angle of non-axisymmetric droplets, automatically eliminating system deviation, with high computational efficiency and excellent measurement accuracy. It fully automatically outputs the contact angle on both sides, suitable for precision testing of surface properties of various materials.

4. High-definition imaging system

Adopts a dense LED cold light source design with uniform illumination and long service life; combined with a high-performance imported industrial core and an industrial-grade continuous zoom telecentric lens, it achieves high-resolution, low-distortion droplet imaging.

5. Sample stage and body structure

The sample stage uses a 3D manually fine-adjusted platform with flexible operation and accurate positioning, and can be customized according to the actual sample size. The interior of the device uses a high-strength aluminum alloy frame structure, significantly improving mechanical stability and anti-interference capability, and ensuring research-grade precision under long-term operation.

6. High-precision automatic dosing system

Adopts a high-precision peristaltic pump for liquid feeding, supporting fully automatic software-controlled dosing (manual screw-based dosing is also available as an alternative), with a dosing accuracy of 0.1 µL and good repeatability.

7. ★ Auxiliary distance measurement and focusing system

Standard diffuse-reflection auxiliary distance measurement function, with the gap between the dosing needle and the sample clearly visible, effectively reducing the risk of needle collision; equipped with a high-sensitivity auxiliary focusing system to ensure clear imaging and convenient operation, improving measurement accuracy and efficiency.

8. Fully automatic fitting and multiple algorithms

The software features one-click fully automatic fitting with no manual error. It integrates multiple fitting methods such as height-width method, circle method, ellipse / oblique ellipse method, LY method, polynomial method and ADSA-NA method, meeting the precise fitting of various droplet shapes.

9. Dynamic contact angle batch fitting and video analysis

Supports batch processing of multiple images for dynamic contact angle fitting, which can be used for wettability testing; supports continuous video fitting calculation and video recording and playback of the test process, facilitating dynamic contact angle analysis and experimental teaching.

10. Rapid bilateral contact angle fitting

Features rapid bilateral contact angle fitting, enabling more comprehensive analysis of the surface wettability of liquids and solids and accurately reflecting the actual wetting condition of the surface.

11. Database management and report generation

Uniformly stores and manages historical measurement data such as contact angle, surface tension and surface energy, with data preserved after power-off. Supports viewing and loading data at any time for analysis and comparison, and can be re-exported. It can store over 100,000 records and images, and supports automatic generation of reports in PDF, Excel, spectrogram and other formats.

12. Calibration standard plates and customized expansion

Supports a variety of optional accessories such as angle calibration plates (3°, 5°, 10°, 20°, 30°, 40°, 60°, 90°, 120°, etc.). The R&D team can customize special functions according to customer needs.

Technical Parameters