ACOUSTIC EMISSION SYSTEM FOR DIAGNOSTICS OF INDUSTRIAL OBJECTS Russian patent published in 2001 - IPC

FIELD: nondestructive testing of materials of articles by signals of acoustic emission. SUBSTANCE: invention can be used for diagnostics of technical condition of pipe-lines and oil and oil product tanks. Acoustic emission system for diagnostics of industrial objects has electroacoustic converter, amplification and filtration unit, analog-to-digital converter, module of processing and recording of numbered signals connected in series which makes it possible to receive acoustic signals whose sources are regions of progressing corrosion with simultaneous reception of acoustic signals caused by developing technological cracks in bottoms of tanks and reception of acoustic signals caused by leaks through specified defects without re-adjustment of system. System is fitted with voltage divider and second analog-to-digital converter connected in series and module integrating word lengths of numbered signals. Input of voltage divider is connected to output of amplification and filtration unit, outputs of first and second analog-to-digital converters are connected to inputs of mentioned module integrating word lengths of numbered signals and output of this module is connected to input of module of processing and recording of numbered signals. EFFECT: improved functional efficiency and productivity of system. 11 cl, 3 dwg