- ST-195
- Optical Contact Angle Meter
- Water Droplet Shape Analyzer
Automatic Contact Angle Tester Water Droplet Shape Analyzer Surface Tension Meter Ceramic Plastic Semiconductor ISO15989 ASTM D5946 D724 Optical Water Drop Angle Tester Contact Angle Optical Multi Drop Contact Angle Tester Liquid Surface Tension Analyzer Before Coating Spraying Use For Ink Substrates Powder Polymer Measuring Liquid Solid Wetting Performance
Product Description
Working Principle
The contact angle (denoted as θ) refers to the angle formed between the tangent of the gas-liquid interface drawn at the three-phase intersection of gas, liquid and solid (on the liquid side) and the solid-liquid boundary line. It serves as a quantitative measure of wettability and is a primary method for current surface property testing.
This instrument measures the contact angle, surface energy and other parameters on sample surfaces via optical imaging and image contour analysis. It mainly consists of a light source, liquid injection unit, sample stage, image acquisition system and analysis software. Equipped with a differential precision liquid feeding device, the equipment features high-cost performance, strong expandability and comprehensive functions, capable of meeting various routine measurement requirements. It has been widely adopted by numerous universities, research institutes and enterprises.
Application
Applications include solid surface treatment evaluation, plasma cleaning effect analysis, surface cleanliness analysis, solid-liquid interaction or solid-liquid adhesion characteristics research, liquid formulation design, surface printing performance characterization, analytical surface modification, and glass (including plastics or metals) surface wettability research. In fields such as mobile phone manufacturing, glass manufacturing, surface treatment, materials research, chemical engineering, semiconductor manufacturing, coatings and inks, electronic circuits, textile fibers, and medical biology, contact angle measurement has become an important instrument for evaluating surface properties.
Technical Data
|
Model |
ST-195 |
|
Type |
Basic Model |
|
Cabinet Material |
Aviation Aluminum Alloy |
|
Input Power Supply |
220V, 50–60Hz |
|
Power Consumption |
10W |
|
Overall Dimension |
485mm (W) × 175mm (L) × 440mm (H) |
|
Instrument Weight |
10KG |
|
X-axis (Left & Right) Movement |
Manual; Travel: 30mm, Accuracy: 0.1mm |
|
Y-axis (Front & Back) Movement |
Manual; Travel: 50mm, Accuracy: 0.1mm |
|
Z-axis (Up & Down) Movement |
Manual; Travel: 30mm, Accuracy: 0.1mm |
|
Horizontal Adjustment |
Whole machine leveling & camera horizontal calibration (Professional XY level gauge included) |
|
Sample Stage Size |
130×150mm (Customizable) |
|
Max Loadable Sample Size |
150(W) × ∞(L) × 30(H) mm |
|
Stage Material |
Aviation Aluminum Alloy |
|
Injection Axis Travel |
Y travel: 15mm; Z travel: 25mm, Accuracy: 0.1mm (for needle alignment & droplet transfer) |
|
Droplet Control Travel |
Travel: 25mm, Accuracy: 0.01mm |
|
Droplet Discharge Mode |
Manual |
|
Droplet Volume Precision |
0.1μL |
|
Liquid Filling Mode |
Manual filling (5mL glass beaker supplied) |
|
Micro Syringe |
Capacity: 1000μL |
|
Standard Needles |
10pcs replaceable 0.5mm stainless steel needles; 10pcs replaceable superhydrophobic 0.25mm needles |
|
Camera |
Onsemi Rolling Shutter |
|
Lens Magnification |
0.7x–4.5x |
|
Sensor Type |
1/1.8-inch Progressive Scan CMOS |
|
Resolution |
1280 × 1024 |
|
Focal Length |
±2.5mm Adjustable |
|
Image Capture Modes |
Single shot, Interval capture, Continuous capture |
|
Capture Interval Range |
500–3600000 ms |
|
Video Functions |
Recording, Playback, Image Composition |
|
Focus Mode |
Full-automatic software autofocus |
|
Maximum Frame Rate |
80 fps |
|
Light Source Type |
Domestic industrial-grade blue cold light source |
|
Diffusion Film |
High-quality domestic quartz diffusion film |
|
Service Life |
20,000 Hours |
|
Brightness Adjustment |
PWM digital regulation + software regulation |
|
Light Wavelength |
465 nm |
|
Light Source Power |
5W |
|
Contact Angle Test Methods |
Sessile Drop Method, Pendant Drop Method, etc. |
|
Measurement Software |
CA V2.0 Static & Dynamic Contact Angle Measurement Software + Surface Energy Calculation Software |
|
Software OS Requirement |
Windows 10 (64-bit) |
|
Measurement Operation Mode |
Automatic & Manual |
|
Static Contact Angle Fitting Algorithms |
One-click full auto fitting (ms-level, no manual error); 3-point fitting; 5-point fitting; Auto measurement (Circle Method / Oblique Circle Method); Ellipse Method / Oblique Ellipse Method; Concave & Convex surface measurement |
|
Baseline Fitting Mode |
Automatic & Manual |
|
Measuring Angle Range |
0° ＜ θ ＜ 180° |
|
Measurement Accuracy |
0.1° |
|
Resolution |
0.001° |
|
Calculation Models |
Fowkes Method, OWRK Method, Zisman Method, EOS Method, Acid-Base Theory, Wu Harmonic Mean Method, Extended Fowkes Method 37 kinds of liquid databases pre-installed in software; custom liquid performance parameters can be created. Liquid data can be directly loaded for surface energy estimation, and liquid library data can be added, deleted and modified freely. Calculable items: solid surface energy, dispersion force, polar force, hydrogen bond force, van der Waals component, Lewis acid component, Lewis base component, etc. |
|
Surface Energy Unit |
mJ/m² |
Standard Accessories
|
No. |
Accessory Name |
Quantity |
Unit |
|
1 |
USB2.0 Digital CCD Camera |
1 |
Unit |
|
2 |
Continuous Zoom Optical System |
1 |
Unit |
|
3 |
Manual Sample Loading System |
1 |
Set |
|
4 |
Surface & Interface Analysis Measurement System Application Software |
1 |
Set |
|
5 |
Paper Manual + Electronic Version Manual |
1 |
Copy |
|
6 |
Warranty Card & Quality Certificate |
1 |
Set |
|
7 |
Hydrophilic Needles, Hydrophobic Needles |
10 / 10 |
Pcs |
|
8 |
1mL Syringe |
1 |
Unit |
|
9 |
Power Cable & Data Cable |
1 |
Set |
|
10 |
Dedicated XY Level Gauge |
1 |
Unit |
