APPARATUS FOR MEASURING VISCOELASTICITY

• Main Authors: MASUDA TOSHIROU, TAKAHASHI MASAOKI, IWAMOTO SHINSUKE
• Format: Patent
• Language: English
• Published: 05.06.1986
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

PURPOSE:To always keep the clamp interval of a viscoelasticity measuring apparatus constant, by providing a pair of rollers deflected to mutual directions to a clamp mechanism for grasping a test piece and revolving the rollers so as to stretch the test piece. CONSTITUTION:A test piece 2 is held between two pairs of rollers 3, 3a and, when the rollers 3 are revolved by a servo motor 6, said test piece 2 is stretched. If sine vibration is imparted to a bracket 8 by a vibrator 10, a first crank mechanism 4 is vibrated and the vibration thereof is detected by a displacement detector 9. Vibration is transmitted to the test piece 2 through the rollers 3, 3a and viscoelasticity dynamic characteristic stress response is detected by a force detector 1 through a second clamp mechanism. The vibrator 10 is driven to rotate the rollers 3 and the measurement of dynamic viscoelasticity under constant stress speed stretching can be performed. The clamp interval of the test piece 2 can be made constant and the apparatus is compact and stretching magnification can be increased.