DEVICE FOR DETERMINING VISCOELASTIC PROPERTIES OF MATERIALS Russian patent published in 1994 - IPC

FIELD: instrumentation engineering. SUBSTANCE: device has a bed which carries a vibratory system provided with grips for holding the sample under test. One sample is movable, other is immovable. The vibratory system is built up of two frames rigidly connected together, one frame lying in the plane of sample fastenings, the other lying in a perpendicular plane. Inside of the second frame on spring torsions is mounted a knife-edge support which is in contact with a support in the form of a concave hollow semicylinder rigidly secured on a plain bearing. On the outer surface of each of the opposite sides of the second frame is mounted a rocker of the vibratory system; the rockers each are provided with inertial weights and interact with an electromagnetic excitation converter. A recorder is constructed of a light source, a photodetector, a data processing unit and an optical blind connected to the point shared by two frames. EFFECT: enlarged operating capabilities. 3 cl, 2 dwg