METHOD OF CONTROLLING THE WORKING PROPERTIES OF ACROBATIC TRACKS AND DEVICE FOR ITS REALIZATION Russian patent published in 1994 - IPC

FIELD: sports. SUBSTANCE: spherical-shaped indenter with the energy of the first collision equal to 1300 joules is thrown down from the desired height onto the controlled acrobatic track, and the full time of the indenter interaction with the acrobatic track during the first collision and the time between the first and the second collisions are determined. After that the obtained results are compared with the values of the analogous parameter of a standard acrobatic track. The device for the method realization has a spherical-shaped indenter with electrical contacts uniformly disposed on its surface. These contacts are connected with the signal registration circuit by means of conductors. The circuit has a device for measuring time and is placed inside the indenter. The device for the method realization also has a sheet of current-carrying flexible material serving to close contacts on the surface of the controlled acrobatic track. In order to escape adhesion, recesses are made on the indenter surface. EFFECT: improved method of production and exploitation of training and tournament acrobatic tracks. 3 cl, 7 dwg