Why are contact angle systems used for evaluating cleanness of solid surfaces?

Solid materials like metals and glasses generally have large surface free energy (the Υs should be large) and water droplets on those materials should form a small contact angle. On the other hand, when the solid surface is contaminated with organic materials, water droplet will form a larger contact angle. The contact angle is sensitive enough to show different results even with a small amount of contamination such as mono-layer orders.

Acam Series

Where Contact Angle can be measured and analysed with high accuracy and with just a click of a button.

Acam-NSC

Contact Angle measurement 0°-180° with an Accuracy of ±0.05°

High Speed USB connectivity

Horizontal Camera Assembly with Integrated Fine Focus

High Performance C-Mount CCD with Infra-red Cut Filter

Aberration Corrected High Magnification Lens

Max Frame rate : 75 fps (option 1) / 30 fps (option 2)

Max Image resolution : 744 X 480 Pixels (option 1) / 2592 X 1944 Pixels (option 2)

Magnification : 5X (10X optional)

LED based Lighting with Hysteresis Free Illumination

Software controlled illumination : Not Available

Substrate Stage Dimension [L X W (in mm)] : 150 X 100

Substrate Stage Z-axis Movement : Up to 40 mm (can be customised on request)

Precise level adjustment by four adjustable levelling screws

Precision Dispensing Module (Both Manual & Automatic)

Acam-MSC

Contact Angle measurement 0°-180° with an Accuracy of ±0.05°

High Speed USB connectivity

Horizontal Camera Assembly with Integrated Fine Focus

High Performance C-Mount CCD with Infra-red Cut Filter

Aberration Corrected High Magnification Lens

Max Frame rate : 200 fps

Max Image resolution : 1280 X 1024 Pixels

Magnification : 5X (10X optional)

LED based Lighting with Hysteresis Free Illumination

Software controlled illumination : Available

Substrate Stage Dimension [L X W (in mm)] : 150 X 100

Substrate Stage Z-axis Movement : Up to 40 mm (can be customised on request)

Precise level adjustment by four adjustable levelling screws

Precision Dispensing Module (Both Manual & Automatic)

Acam-HSC

Contact Angle measurement 0°-180° with an Accuracy of ±0.05°

High Speed USB connectivity

Horizontal Camera Assembly with Integrated Fine Focus

High Performance C-Mount CCD with Infra-red Cut Filter

Aberration Corrected High Magnification Lens

Max Frame rate : upto 3000 fps (>4000 fps on request)

Image resolution : 1984 X 1264 (max) [648 X 488 Pixels (at max frame rate)]

Magnification : 5X (10X optional)

LED based Lighting with Hysteresis Free Illumination

Software controlled illumination : Available

Substrate Stage Dimension [L X W (in mm)] : 150 X 100

Substrate Stage Z-axis Movement : Up to 40 mm (can be customised on request)

Precise level adjustment by four adjustable levelling screws

Precision Dispensing Module (Both Manual & Automatic)

Acam Software Features

Contact Angle Measurement Techniques : Image analysis by Sessile Drop, Liquid Meniscus, Circle Fitting, Basforth-Adams, Tangent Method, Ellipse Fitting, Young-Laplace, Half Circle (θ/2)

Liquid Drop Volume Detection Method : Realtime Image analysis

Acam Series Add-on Modules and Features

Stage Heating Module : Up to 200°C by Heating Jacket Module or by Liquid Circulating Jacket Module (upto 400°C by Heating Jacket Module only). Optional addition of Liquid Circulation bath of temperature control range from 10°C to 100°C.

Stage Movement Module : Movement of Substrate Stage in XZ Directions or XYZ Directions

Zoom Lens Module : Zooming Facility up to 10X

Auto-dispensing Module : Liquid Dispensing with a Programmable Volume & PC-controlled Dispensing Speed Range of 0.01 - 16 μl/sec.

Multi-dispensing Module : Multiple Liquid Dispensing with a Programmable Volume & PC-controlled Dispensing

Captive Bubble Module : Measurement and Analysis of Contact Angle by Captive Bubble method using Drop Shape Analysis.

Dyne+ Add-on :

  • Continuous Capturing & Saving of Images

  • Study of Time-dependent Change

  • Continuous Measurement Option of Volume, Height & Width of the Droplet

Vid+ Add-on :

  • Video recording in high fps (Only for Acam-HSC)

  • Option for measurement of any frame from the video

  • Option for exporting video

  • Live view of frames

Preced+ Add-on :

  • Study of Liquid Volume-dependent Change of Contact Angle in Dynamic Mode

  • Measurement & Display of Advancing & Receding Contact Angles [both in Continuous &

    Discrete Mode]

  • Contact Angle Hysteresis Calculation

Tilt+ Add-on :

  • Tilting Angle Analysis

  • Contact Angle Hysteresis Calculation

  • Roll-off angle detection for Super-Hydrophobic Surface

  • Software Controlled Stage Tilting arrangement from 0°-90° [Accuracy: 0.5°, Resolution:

    0.01°, speed : 0.1°/sec to 9°/sec] (*Can be customised on request)

ProgTilt+ Add-on :

PC-controlled Substrate Stage Tilting up to 90° with a Tilting Speed Range of 0.05° - 9°/sec. & a Resolution of 0.0025° along with Tilting Angle (Roll-off Angle) Analysis & Contact Angle Hysteresis Calculation (*Can be customised on request)

Tense+ Add-on :

  • Surface Tension of Liquid Calculation by Pendant Drop Method

  • Surface / Interfacial Tension measurement range : 0 – 2000 mN/m

  • Surface / Interfacial Tension measurement accuracy : 0.01 mN/m

  • Surface / Interfacial Tension measurement by ds/de method, Young - Laplace method

Surfen+ Add-on : (provided along with 5 liquid test kit)

  • Surface Free Energy of Solid Substrates Measurement with more than 10 methods (Van

    Oss Acid Base, Owen-Wendt Geometric-mean, Wu Harmonic-mean, Kaelble-Uy, Work of Adhesion, Zisman, Fowkes,

    Schultz Solid-Liquid-Liquid, Young - Dupre, Rabel Multi-Liquid, Kitazaki-Hata, Kwok One-liquid Surface Energy and others)

  • Wettability test experiment

  • More than 100 Liquid & Solid Database

Intense+ Add-on :

  • Liquid – liquid Interfacial Tension using Pendant Drop method

  • Option for using straight and inverted (J) type needle for Raising Drop Method

Optional Add-ons :

  • Humidity Control System (5-80 Rh)

* Custom Solutions are also provided on request

Related Instruments

How it works Learn more about the Contact Angle Measurement technology in the Technology Info tab

 

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