DEVICE FOR INVESTIGATION OF ROTATION Russian patent published in 1998 - IPC

FIELD: educational guidance in physics, in particular, mechanics. SUBSTANCE: device has disk which is made from diamagnetic and has holes in its periphery and ferromagnetic rod in its center. It is hanged on magnet with ferromagnetic core. In addition device has nearby induction propellant and optical detector which is connected to recording unit. In addition device has symmetrical body which can be placed on disk. Induction propellant is designed as U-shaped core with three windings, two of which are turned in opposite directions and are connected to rotation direction switch. Recording unit may be designed as frequency meter which has oscillator, gate and pulse counter. EFFECT: increased functional capabilities. 3 cl, 2 dwg