DEVICE FOR DETECTION OF DANGEROUS CONDITION IN SYSTEM OF MECHANIC MEMBERS Russian patent published in 1998 - IPC

FIELD: instruments. SUBSTANCE: device has at least one piezoelectric transducer which is connected to member which is located in rest condition with respect to housing in order to detector and convert acoustic oscillations into equivalent electric signals. In addition device has immersion oil, electronic unit, which receives electric signals from assembly of piezoelectric transducers. Goal of invention is achieved by introduced frequency selector and amplitude analyzer of electric signals, converter of frequency to voltage level, converter of amplitude to voltage level, threshold circuit which detects dangerous condition in system of mechanic members. EFFECT: possibility to detect dangerous conditions before avalanche process which leads to fault. 2 dwg