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접촉각 측정기 Contact Angle Meter

Contact Angle Meter

Model No: HO-IAD-CAM-01

Holmarc’s Contact angle meter Model no: HO-IAD-CAM-01 is a basic educational equipment for illustrating the basics of contact angle measurement to students. It has manual dispensing with CCD interface for measuring contact angle of liquids on solid surfaces. The surface over which contact angle is to be measured is held in horizontal position to find out contact angle using sessile drop method.

The equipment enables:

Static Contact angle measurement

The instrument uses sessile drop method which is the standard method for quick and accurate wetting results for finding out Contact angles.

State-of-the-art optics, precise opto-mechanics, high-resolution CCD detector and associated electronics used in our instrument guarantee error free measurements. Manual dosing of liquids can be done using this equipment.

Standard off the shelf syringes can be integrated from 0.4 to 20 ml, from any manufacturer.

Compatible with glass, plastic and SS syringes.

Contact angle is the angle formed by a liquid at the phase boundary where a liquid, gas and solid intersect. The shape of the drop is controlled by the three forces of interfacial tension. Static Angle and Advancing Angle are quantitative measures of the wetting of a solid by the liquid, but they can also be used as a quality control measure in surface treatments and surface cleanliness. Receding Angle is a quantitative measure of the adhesion of a solid to a liquid.

Technical Highlights
1.	Warm light LED with variable intensity control ensures extreme low heat radiation.
2.	Precise travel adjustment provided for CCD with Optics assembly to fine focus the image.
3.	Manual dispensing.
4.	50,100 & 250 micro liter sample syringes provided with the system.
5.	Precision height adjustment provided at the test base.
6.	Vibration inhibiting solid construction for sharp drop images.
7.	Powerful and user friendly windows software provided for image analysis.
8.	Live images can be viewed on the PC monitor showing the droplet on the solid surface reassures the operator-regarding validity of the contact angle measurement.
9.	Video processing enabled software.
10.	Captured image and its Angle measurement table can be saved for future reference.

Specification

Measuring method	:	Sessile drop method
Measurement Resolution	:	+/- 0.01 degree
Analysis method	:	Automatic curve fit analysis using drop snake method.
Measuring range	:	0 - 180 degree
Accuracy	:	+/- 1 degree
Optics	:	High performance aberration corrected imaging lens with precise manual focus adjustment.
Camera type and FPS	:	CMOS Sensor
Image Resolution in Pixels	:	2592 X 1944
Video System	:	High performance CMOS Sensor, Monochrome, 1280 x 1024 Pixel, 25 fps.
		3m shielded USB cable included.
Video Resolution in Pixels	:	640 X 480 at 17 fps
		1280 X 960 at 10 fps
		1920 X 1080 at 9 fps
		2048 X 1536 at 6 fps
		2592 X 1944 at 4 fps
Lighting	:	LED Based diffused lighting mechanism.
		Light intensity can be varied.
Dispenser	:	Mechanical dispenser with precise micrometer control.
		50, 100 & 150 micro liter syringes are provided with the system.
Dimension	:	350 x 125 x 350mm
Weight	:	30 kg (approx)
Power supply	:	240VAC, 50 Hz.
Other Specifications	:	15mm height adjustment for Sample holder.
		360 degree rotatable option for the Sample holder.
		25mm XY Travel provided for the CCD - Optics assembly.
		Rotatable screws provided beneath the base for fine height adjustments.

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