METHOD FOR DETERMINING BUOYANT FORCE OF SKI, AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2014 - IPC A63C11/00 

FIELD: measurement equipment.

SUBSTANCE: invention refers to measurement equipment, it is meant for comparative evaluation of skies buoyant force and may be used in elite sport. The task is solved by consecutive measurement of acceleration amplitude of harmonic components of oscillation spectrum of ski w₁, w₂, … w_n, brought in vibrational state by short press of arbitrary force on its last, together with one constant chosen harmonic of the same spectrum w₀ from the start without additional load, thus obtaining value pairs: (a₁₁, a₂₁); (,a₂₂)…(a_1n, a_2n), and then with additional load of mass M, thus obtaining value pairs (a_11C, a_21C); (a_12C; a_22C), … (a_1nc, a_2nc), based on which involved mass m_2n is calculated on each harmonic w_2n: $$m_{2n}=\frac{M{a}_{2nc}/a_{1nc}}{\frac{a_{2n}}{a_{1n}}-a_{2nc}/a_{1nc}}\left(1\right)$$ and pulse of ski buoyant force: .

EFFECT: invention task is to develop method for determination of ski buoyant force with maximum facilitation of measurement with high resolution.

3 cl, 1 dwg