DEVICE FOR MEASURING SURFACE RELIEF PARAMETERS AND MECHANICAL PROPERTIES OF MATERIALS Russian patent published in 2020 - IPC G01N3/40 

FIELD: monitoring and research equipment.

SUBSTANCE: invention relates to equipment for monitoring and analyzing materials and articles and can be used to determine parameters of surface topography (linear dimensions, roughness), mechanical (hardness, modulus of elasticity, coating adhesion) and tribological (friction coefficient, wear resistance, life time of coatings) characteristics of materials of cylindrical and flat friction surfaces of machine building items. Device comprises a piezoceramic table, a housing and an indenter, an electronic unit for monitoring electrical signals of capacitive sensors and excitation of elastic elements. Indenter is installed in its attachment unit on an elastic element, which is made in the form of a multilayer stack of five cantilevered in the holder and connected to the monitoring unit of flat rectangular plates. Outer pair of plates of greatest length is connected at ends with each other by means of rigid dielectric post and forms external contour, inside which there is internal similar circuit of pair of interconnected by means of dielectric rack plates of smaller length, but higher rigidity than outer contour plates. In the center of the inner circuit there is a central plate and all plates are fixed in the holder in parallel with the gaps between each other. At end of lower plate of outer contour there is a smooth thrust sphere, and at ends of lower and upper plates of inner contour there is a unit for fastening of replaceable indenters with possibility of their installation through process holes in lower and upper plates of external contour.

EFFECT: broader functional capabilities, high quality (in particular, resolution), reliability and stability of measurements, as well as optimizing the design and improving its manufacturability during production.

1 cl, 4 dwg