LEVER UNIT FOR STATIC AND DYNAMIC TESTING OF MATERIALS UNDER CONDITIONS OF UNIAXIAL COMPRESSION Russian patent published in 2015 - IPC G01N3/16 

FIELD: testing technology.

SUBSTANCE: invention relates to the testing technology and is designed for silent testing of samples of rocks for compression in vitro both in the creeping condition, and with the controlled rate of loading. The lever unit comprises the load frame, the upper and lower beams, the power rods, the forcemeter consisting of a membrane and an induction sensor of linear motion, which are integrated in a spinning plate to set the samples of materials. The load frame is equipped with the three arm system that is the power-transmitting node from the fluid reservoir in which fluid flows through the control system of fluid leakage rate on the sample.

EFFECT: creating the unit for long-term (creeping) and dynamic (controlled rate of increase in load) testing of rock samples, providing silent experiments on mechanical uniaxial compression.

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