Abstract
It has been established that, at the present stage, it is advisable to increase the sensitivity of EMA devices via an increase in the power of the probing-pulse generator. New types of generators that allow a substantial enhancement in the sensitivity of EMA instruments have been developed. The characteristics and potential of EMA devices with a new generator have been studied. An example of detecting a model of a flaw in the form of a 1-mm-diameter flat-bottom reflector is used to show that the detection sensitivity has increased by a factor of several with an increased gap between the electromagnetic-acoustic transducer and the surface of the inspected metal.
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