DYNAMOMETRIC BEARING ASSEMBLY Russian patent published in 1995 - IPC

FIELD: mechanical engineering. SUBSTANCE: transducer in the dynamometric bearing assembly is made as a sleeve with slots. Piezoelectric elements in the form of annular sectors are installed in the slots at a respective spacing. The piezoelectric elements are connected to a ring circuit and interrogated in turn at a rate exceeding the arbor rotational speed. Installed in the arbor recess is an additional transducer that connected in series the piezoelectric elements by means of thyristor-transistor gates. The piezoelectric elements may be coated with a layer of material on the side facing the bearing. EFFECT: enhanced accuracy of measurements, and stiffness of the dynamometric arbor assembly. 4 cl, 2 dwg