RELATIVE CALIBRATION OF ACOUSTIC EMISSION TRANSDUCERS

摘要

FIELD: physics.SUBSTANCE: transducer to be calibrated is arranged at calibration unit to excite displacement pulses therein. Received signals are registered and compared. Note here that said displacement pulses are excited with the help of friction emission acoustic source. Obtained friction emission acoustic signals are registered. Then, said signals are used to determine autocorrelation of said signals, hence, to perform the relative calibration of acoustic emission transducer.EFFECT: higher calibration quality.2 dwg