FIELD: sports.
SUBSTANCE: device for dynamic property definition of tennis racket includes tennis racket holding unit, sensors, parametre measurement, registration and indication unit connected to sensors, drive gear in the form of motor connected to tennis racket holding unit, tennis ball holding unit in the form of basement, elastic rod and rod support element, with one end of elastic rod attached to the basement, and tennis ball attached to the other end. Rod support element is also attached to the basement, sensors are mounted on tennis racket mesh and tennis ball and connected electrically to parametre measurement, registration and indication unit. Tennis racket holding unit is made in the form of cylindrical case with torsion spring, one end attached to motor outlet axle and the other end attached to the shaft of racket handle holding device. Tennis racket holding unit features shutoff/launch device in the form of electric magnet with pin, loose end of the pin inserted in hole of disc connected to shaft of racket holding unit.
EFFECT: enhanced accuracy of string surface parametre measurement for tennis racket, higher automation degree of device operation.
4 cl, 2 dwg
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