UNIT FOR DETERMINING FRICTION COEFFICIENT Russian patent published in 2018 - IPC G01N19/02 

FIELD: measuring equipment.

SUBSTANCE: invention relates to a measuring equipment for engineering, namely to units for determining parameters of friction of kinematic pairs. Unit for determining a friction coefficient comprises a carriage with a kinematic friction pair located on it. Investigated friction pair is represented by a removable horizontal plate, fixed on a fixed base. Moving element of the pair is a removable plate on the carriage, which is driven by an electric drive. Means for measuring the frictional force are installed on the carriage, output signal of which is the frequency. To transmit the measuring signal, a linear transformer is used. Moving windings of the transformer are fixed on the carriage, and fixed windings - on the unit base. Signal of the measuring means is processed by an electronic unit. Output information signal of the electronic unit is a rectangular pulse, with a duration equal to the frequency period of the frictional force converter. Unit allows to determine a friction coefficient for different combinations of materials with different combinations of the normal pressure force and the speed of the movable element of the friction pair under study.

EFFECT: technical result is increased reliability of the result of determining the friction coefficient.

7 cl, 5 dwg