• Contact angle measurement

    Contact angle measurement

Practical Contact Angle Measurement (3)

The eye also measures

The optical system with illumination, camera and video image evaluation is the heart of a contact angle measuring instrument. Its increasing precision is primarily due to advances in video technology and drop shape analysis. This third part of our series on practical contact angle measurement helps you to utilize the possibilities of the optics to the full and measure accurately and reproducibly.

In comparison to dosing, in which the volume and volume flow together with the dosing procedure can be exactly controlled, setting the optical parameters is apparently concerned with more subjective criteria: The drop image should be “well” illuminated and “sharp” and “as large as possible”. In fact the optical parameters can also be controlled exactly and matched to suit the measuring task.

Download the full technical note (TN313) on this subject.

Download | Technical Note


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