DEVICE FOR DETERMINING IMPACT FRICTION PARAMETRES Russian patent published in 2009 - IPC G01N19/00 

FIELD: physics.

SUBSTANCE: device for determining impact friction parametres has a sample and a control sample, interfaced on a plane and linked to a base, at least one three-component linear acceleration sensor, mounted at the centre of gravity of the control sample, with two axes of sensitivity lying in the interface plane of the sample and the control sample and the third - on a normal to the said interface plane, and a centre punch. The control sample is suspended on non-elastic flexible threads. An angle sensor is mounted on the suspension axis of the centre punch. The three-component linear acceleration sensor is fitted on one of the axes of sensitivity on the striking line. The angle sensor and the linear acceleration sensor are connected through a switch to an oscilloscope with memory function and through filters and analogue-to-digital converters to inputs of a computer.

EFFECT: increased reliability of determining dynamic rigidity in the pre-displacement zone upon impact and impact friction phenomena.

5 cl, 6 dwg