FIELD: non-destructive control.
SUBSTANCE: method includes forming forced mechanical oscillations in first point, changing effect frequency until appearance of resonance oscillations in device. In second point parameters of these oscillations are measured, as which oscillation amplitudes are recorded with effect frequency and with double effect frequency, while resonance is determined on basis of maximum oscillations amplitude with double effect frequency. Then relation of square oscillations amplitude with effect frequency to oscillations amplitude with double effect frequency is determined. Then oscillations are excited in second point, and recording of parameters is performed in second point, by analogical method for this case second value of relation is determined and on basis of average value of two relations flaw level of product is estimated.
EFFECT: higher trustworthiness.
3 dwg
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