DEVICE FOR DETERMINING DYNAMICAL CHARACTERISTICS OF POLYMERIC FIBERS Russian patent published in 2005 - IPC

FIELD: investigating strength properties of solid materials.

SUBSTANCE: device comprises two vertical pillars, which are provided with a vertically movable unit for unbalancing the specimen-weight system and synchro transmitter, and two horizontal platforms. The axially aligned top and bottom clamps for the specimen are secured to the top plate. The bottom clamp is made of a vertical rod with the area for mounting the stack weight. The movable horizontal plate is mounted on the vertical pillars for permitting vertical movement and has an opening whose center is in coincidence with the longitudinal axis of the specimen and clamps. The opening receives the vertically movable unit for setting the specimen with the weight out of balance. The unit is made of an electromagnet with the core whose diameter is less than that of the opening. The movable plate is provided with a unit having roller system, which is composed of three pairs of rollers arranged at an angle of 120^o to each other and embraces the bottom clam whose cross-section is a regular hexahedron. The top clamp is made of a cantilever provided with a strain-gauge transducer.

EFFECT: enhanced reliability of determining.

2 dwg