GEAR EVALUATING LEVEL OF LOOSE MATERIALS Russian patent published in 1999 - IPC

FIELD: acoustic distance measurement. SUBSTANCE: gear incorporates groups of sources and receivers of acoustic vibrations, clock pulse generator, frequency divider, AND gates, two commutators, flip-flop, pulse counter, three delay elements, OR gate, unit determining boundaries of field of parameter dispersion, unit determining arranged values of parameter, analog-to-digital converter, amplifier with controlled gain factor, detector, threshold element, two pulse formers, generator of harmonic vibrations, univibrator, element sensitive to temperature of medium of propagation of acoustic vibrations, arithmetic unit, ring shift register connected properly. EFFECT: expanded functional capabilities. 1 dwg