SENSOR FOR CONDITION INSPECTION AND DIAGNOSTICS OF ANTIFRICTION BEARINGS Russian patent published in 1995 - IPC

FIELD: measurement technology. SUBSTANCE: electric signal of vibrators 1 mounted on rolling friction parts is passed through switch 2, self-normalizing unit 4, high-frequency filter 5, amplitude-frequency response unit 6, peak detector 7, analog-to-digital converter 8, input/output unit 9, and is processed in the form of condition estimate by microprocessor processing unit 10. Information-carrying electric signal picked off output of amplitude-frequency response unit 9 arrives at unit 14 recording maximum amplitude values and is transferred as information about lubricant layer thickness to microprocessor unit 10. The latter also responds to signal informing about rate and rhythm of flaw development coming through second switch 15, low-frequency filter 16, and second analog-to-digital converter 17 and processes it. EFFECT: improved reliability of flaw detection. 3 cl, 1 dwg