FRICTION COEFFICIENT CHECKING METHOD Russian patent published in 1999 - IPC

FIELD: agricultural engineering; investigation of device designed for vibratory transportation of loose materials. SUBSTANCE: inclined plane with material is set into vibration at intensity providing equal upward and downward shifting of material under investigation. Value of critical angle of direction of vibrations is found from setting scale, and friction coefficient is determined by chart or transcendental equation by angle. EFFECT: possibility of checking coefficient of friction under conditions when material moves at vibrations of different intensity. 1 dwg