Supersonic fault detection apparatus

摘要

A probe unit including a plurality of ultrasonic fault detection probes is moved along an object to be examined by a probe drive unit. The fault detection signals produced by the probes are transfer switched among a plurality of channels of a channel selector and the output of the channel selector is sampled by a high speed sampling device. A computer is connected to the probe drive unit, channel selector and the sampling device to apply operating signals thereto and to receive the outputs thereof.