ULTRASONIC METHOD OF INTERNAL MECHANICAL STRESSES MEASURING Russian patent published in 2016 - IPC G01N29/04 

FIELD: mechanisms.

SUBSTANCE: invention can be used for measurement of internal mechanical stresses during ultrasonic nondestructive inspection. Invention summary consists in fact that in loaded analyzed object and its non-loaded analogue longitudinal and transverse waves ultrasonic pulses are introduced, passed signals are received by receiving transducer and additionally receiving transformed transverse waves from longitudinal waves falling onto analyzed object and transformed longitudinal waves from transverse waves falling onto analyzed object, measuring these waves passage time in loaded and unloaded object, determining transmitted signals delay time change, and voltage value is defined by certain mathematical expression, wherein receiving and emitting transducers with angle of longitudinal ultrasonic oscillations supply, equal to 18°.

EFFECT: technical result is possibility of voltage determining process significant simplification and higher reliability of monitoring.

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