Automatic contact angle measurement mode Tangent method.
The three points including the droplet at right and left point at equal distances are assumed as a part of the ball, and expressed as the contact angle (right and left average)at its right and left end. Because measurement of contact-angle on the droplet, at right-end, at left-end, is performed independently, dynamic back and forth measurement of contact angle is possible. Measurement of change at time is madeon the graph function of the measurement result
Manual contact angle measurement mode θ/2 methode.
In the case of “θ/2 method”, the fallen droplet is assumed as a part of the sphere and the contact angle is expressed as a double angle constituted by linking the line between the top and both ends to the left and right of droplet.
Horizontal line coordinate function
Employed the stability line coordinate indication function to measure with exactly the same condition by matching the sample surface with varying thickness. Thus, the measurement reproducibility is improved by preventing a camera reading angle from varying every measurement