The Pocket Goniometer is a battery operated instrument that measures static contact angle
POCKET GONIOMETER
The Pocket Goniometer is a battery operated instrument that measures static
contact angle and dynamic surface hysteresis for laboratory and field applications
related to gluing, printing and surface-related problems. It is an ideal
tool for checking contamination of a
specimen and the effects from cleaning and surface treatments.
By placing a liquid droplet on a specimen surface a contact angle is formed
at the contact area. A droplet that "beads up" is non-wetting
and a contact angle greater than 90¡Æ is displayed. When the droplet "wets
out" across the surface, wetting is obtained and the contact angle
is less than 90¡Æ .
A 6x magnified image of the droplet is displayed
on the built-in screen. A reading is quickly made by rotating the protractor
until the lines are parallel to the tangent at the contact point. An optional
eye-piece provides 7x magnification of the test sample for very accurate
readings.
FEATURES:
¡Ü Portable unit high quality lens system
¡Ü Battery operated long life light source (expected
lifetime of 70,000 hours)
¡Ü Additional syringes are available separately
¡Ü Industry Standards: ASTM D724, TAPPI T458, SCAN
P 18