Contact angle Analysis

CA-1M

The CA-1M provides professional contact angle analysis by combining high-speed CMOS imaging with precision manual control to quantify surface wettability and cleanliness.

CONTACT ANGLE ANALYSIS

CA-1M Contact Angle Module for PAT-1M

The contact angle is a quantitative measure of surface wetting, formed at the three-phase contact line where liquid, gas, and solid intersect. The CA-1M determines this angle by analyzing the drop shape—governed by interfacial tension—using a high-performance optical bench and an industrial CMOS camera optimized for sessile and pendant drops. To ensure precise results in surface treatment and cleanliness control, the system features a precision-engineered manual dosing system for stable drop formation and a high-stability x/y/z-axis stage for exact sample alignment. 

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PAT-1M Main
PAT-1M View 2
PAT-1M Main
PAT-1M Main
Overview Information Technical Specifications Software Accessories & Spare parts Compatible Modules Applications Inquiry
instrumental parts
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Universal Tensiometer Module CA-1M: Features a high-performance optical bench with an industrial CMOS camera, optimized for high-speed capture of both sessile and pendant drops.

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Manual Liquid Dispensing: A precision-engineered manual dosing system for the controlled deposition of test liquids, ensuring repeatable and stable drop formation.

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Precision Measurement Table: A high-stability x/y/z-axis stage with fine-threaded manual adjustment for the exact alignment of samples and specialized measurement cells.

Hardware

Instrumental parts

  • • Basic platform on which all parts are safely mounted
  • • Manual x/y/z-axis
  • • Automatic computer-controlled precise dosing system
  • • Mechanically adjustable temperature controlled measuring cell (temperature range 10 to 100 °C)
  • • Industrial USB 3.0 CMOS camera with fixed objectives
  • • LED lighting with continuously adjustable intensity
Features

Measurement Features

  • • Surface and interfacial tension of liquids
  • • Static and dynamic contact angle according to the sessile drop method
  • • Determinanion of surface free energy
  • • Surface rheological studies to measure the dilational elasticity and viscosity
  • • Capillary pressure measurements for iso-dense liquid-liquid systems (optional modul DPA-1M)
  • • Surface rheological studies at higher frequency (optional modul ODBA-1M)
  • • Direct drop-drop, bubble-bubble and drop-bubble interactions (optional modul DBMM-1M)
  • • Fluid dynamic experiments with optional set-up
Software

Main features of the software

  • • on-line interfacial tension/contact angle calculation
  • • very accurate control loop to keep constant either volume or area of drop or bubble
  • • smooth oscillations with dosing system
  • • harmonic and transient relaxation experiments
  • • calculation of the dilation rheological parameters from relaxation measurements via Fourier analysis
  • • calculation of the surface free energy of solids (different methods)
Technical Data

PAT-1M CA Specifications

Parameter Specification
Range of contact angle measurement 2° to 178° (accuracy ±0.3°)
Range of surface and interfacial tension 1 to 2000 mN/m (resolution: 0.01 mN/m)
Fast on-line fitting up to 32 measured and fitted points per second
Measuring options automatic drop volume/area control; pendent drop, buoyant bubble, sessile drop;
surface / interfacial tension; dilational elasticity and viscosity; contact angle; surface free energy;
drop/bubble oscillations 0.001 to 0.5 Hz (basic version), up to 200 Hz (ODBA-1M module)
Dosing built-in automatic dosing system (optional second automatic dosing system)
Additional measurement modules drop pressure module DPA-1M, oscillating drop bubble oscillation module ODBA-1M, drop bubble micro manipulator DBMM-1M, second optical axis SOA, coaxial capillary system CCS, contact angle PAT1M-CA
Optics & Camera Optics: manual fixed or zoom objectives
Camera: Industrial 3.1 MP CMOS, 2048 x 1536 px, USB 3.0
Frame rate (Standard) 60 fps @ 2048x1536 | 370 fps @ 640x480 | 740 fps @ 640x240 | 1500 fps @ 640x120
Hardware & Axis manual x/y/z-axis | LED illumination (software controlled) | Interface: USB 3.0
Physical Data Size: 700 x 200 x 270 mm | Weight: 18 kg | Power: external 100…240 AC to 24 VDC, 40 W
Software & OS Windows Application (7, 8, 8.1, 10) | Operation: External PC | free update (1 year)
Extra accessories adjustable temperature controlled cell, additional dosing systems (up to 4), coaxial double capillary, liquid exchange cell, piezo control unit, special contact angle cell, high temperature cells
Sinterface Software
Intelligent Analysis

CA-1M Software

Our high-performance software provides real-time fast contact angle analysis and precise data acquisition. Designed for accuracy and intuitive workflow, it allows seamless control of all measurement parameters.

✓ on-line interfacial tension/contact angle calculation
✓ Automated Image acquisition and fitting
✓ Real-time Calculation of Interfacial Tension
✓ Interfacial Rheology Studies are available in the basic version
✓ Different measurement functions
✓ Semi-automatic focussing procedures
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Available Accessories and Spare Parts for CA-1M

Accessories  +
Syringes

AM 01001

Measuring cell Type 1 (standard)
Temperature controlled measuring cell (water bath not included) for surface/interfacial measurement, rheological measurements and basic contact angle studies.
Low temperature range 10 to 80 °C,
with holders for straight capillaries
NOTE: Without Optical Glasses

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Syringes

AM 01002

Measuring cell Type 2 (high temperature)
HT-1000M
Electrically heated measuring cell (incl. external microprocessor temperature controller).
High temperature range up to 1000°C,
For liquid/air measurement 

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Syringes

AM 01003

Holder for Cell Type 2

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Syringes

AM 01004

Capillary holder for AM 01001
For straight shaped capillaries 

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Syringes

AM 01005

Capillary holder for AM 01001
For curved capillary 

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Syringes

AM 01014

Adjusting set-up for Small cuvette 

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Syringes

AM 01029

Light source for PAT-1M complete 

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Syringes

AM 01054

LED Light source for PAT-1M
Plate 5x5 LEDs 

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Syringes

AG 01030

Diffusing glass 

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Syringes

AE 01032

Power connection Cable EU 

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Syringes

AE 01033

Power connection Cable USA

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Syringes

AE 01034

Power connection Cable GB

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Syringes

AE 01035

Diffusing glass 

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Syringes

AG 01030

Power connection Cable CH

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Syringes

AE 01036

Power connection Cable I

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Syringes

AD 01037

Coaxial capillaries system
Consists of:
Coaxial capillaries (standard)
Automatic dosing system ADS-1M
Tubing
Software 

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Syringes

AM 01038

Holder for Coaxial Capillary system 

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Syringes

AM 01069

Coaxial capillary
OD 1 mm 

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Syringes

AD 01070

USB 3.0 Cable 2m

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Syringes

AD 01071

Power Supply 24 VDC , 70 W, 110-240 AC 

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Spare parts +
Syringes

AM 01006

Capillary for PAT1 straight shape, CPA 01
PTFE - stainless stell
OD 0.5 mm

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Syringes

AM 01007

Capillary for PAT1 straight shape, CPA 02
PTFE - stainless stell
OD 1.0 mm 

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Syringes

AM 01008

Capillary for PAT1 straight shape, CPA 03
PTFE - stainless stell
OD 2.0 mm 

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Syringes

AM 01009

Capillary for PAT1 straight shape, CPA 04
PTFE - stainless stell
OD 3.0 mm 

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Syringes

AM 01010

Capillary for PAT1 curved shape, CPA S01
PTFE - stainless stell
OD 2.0 mm

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Syringes

AM 01011

Capillary for PAT1 curved shape, CPA S02
PTFE - stainless stell
OD 3.0 mm

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Syringes

AG 01012

Cuvette for Measuring cell Type 1, Big
Glass cuvette for measurement cell Type 1,
Size (LxWxH): 32x35x35mm 

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Syringes

AG 01013

Cuvette for Measuring cell Type 1, Small
Glass cuvette for measurement cell Type 1,
Size (LxWxH): 32x35x35mm 

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Syringes

AD 01016

Dosing system DS1
Automatically controlled dosing system.
Interface: USB 

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Syringes

AD 01017

Valve for DS1

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Syringes

AM 01018

Tubing for AD 001016 1-side,
PTFE tube OD 1.8mm, 40 cm 

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Syringes

AM 01019

Tubing for AD 001016 2-sides,
PTFE tube, OD 1.8, 40 cm 

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Syringes

AM 01019

Tubing for AD 001016 2-sides,
PTFE tube, OD 1.8, 40 cm 

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Syringes

AM 01020

Syringe
Precision syringe for DS1
Volume: 25 mkl 

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Syringes

AM 01021

Syringe
Precision syringe for DS1
Volume: 50 mkl 

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Syringes

AM 01022

Syringe
Precision syringe for DS1
Volume: 100 mkl 

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Syringes

AM 01023

Syringe
Precision syringe for DS1
Volume: 250 mkl 

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Syringes

AM 01024

Syringe
Precision syringe for DS1
Volume: 1000 mkl 

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Syringes

AM 01025

Calibration kit
Special magnetic holder,
Stainless steel calibration sphere D 3.000 mm 

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Syringes

AM 01026

Calibration sphere D 2
Diameter 2.000 mm 

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Syringes

AM 01027

Calibration sphere D 3
Diameter 3.000 mm 

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Syringes

AM 01028

Calibration sphere D 5
Diameter 5.000 mm 

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Syringes

AM 01072

Capillary for PLF-2M
Contact Us for technical information!

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Syringes

AG 01043

Capillary for ODBA-1M, COD-01
ID= 0,3 mm, OD= 0.8 mm 

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Syringes

AG 01044

Capillary for DPA-1M, CDP-01
ID= 0,3 mm, AD= 0,8mm 

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Syringes

AG 01045

Capillary for DBMM-1M (curved shape), CMM-01
Contact Us for technical information!

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available Modules
ADM Module

Automatic Dosing Module

Technical Info →

Applications & Use Cases

Case 1

Wetting of Lacquers

Avoiding cratering and ensuring smooth finishes on metal and plastic surfaces.

Case 2

Paper & Packaging Sizing

Controlling the ink penetration depth and liquid absorption of coated paper surfaces.

Case 3

Anti-Graffiti & Easy-Clean

Evaluating the surface energy of repellent coatings for permanent protection.

Case 3

Wafer Cleaning QC

Surface energy measurement to detect ultra-thin organic residues on silicon wafers.

Case 3

Solder Paste Wetting

Investigation of the wetting behavior of solder on circuit board contacts.

Case 3

Potting & Encapsulation

Optimizing the flow and wetting behavior of resins for electronic component protection.

Case 3

Structural Bonding

Surface energy QC of composite materials for high-strength aerospace adhesives.

Case 3

Ophthalmic Wetting

Optimizing eye drop formulations for better spreading and longer residence time on the cornea.

Case 3

Pesticide Adhesion

Ensuring agrochemicals stick to hydrophobic plant leaves without runoff.

Case 3

Dust Suppression

Developing wetting agents to bind dust particles in open-pit mining.

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