Patent ID: 8584526

Claim:
An ultrasonic flaw detection equipment for performing a volume focusing flaw detection of a material being tested, the material having a substantially rectangular cross-sectional shape, the ultrasonic flaw detection equipment comprising: at least two array probes, each of the at least two array probes having a plurality of transducers, wherein the plurality of transducers of one of the at least two array probes are arranged along a first side of the material, and the plurality of transducers of the other one of the at least two array probes are arranged along a second side of the material adjacent to the first side; an exciting unit configured to excite each transducer of the array probes; a waveform memory configured to store an ultrasonic wave received echo received by each transducer as waveform data of each transducer; a phase combining unit configured to read contents of the waveform memory in which the waveform data of each transducer is stored and perform phase combining; and a focusing unit configured to provide, in reading from the waveform memory, an address of each waveform memory as an address corresponding to a beam path length of dynamic focusing for an arbitrary position in a pseudo electronic scanning range, wherein the ultrasonic flaw detection equipment is configured to transmit ultrasonic waves toward the material being tested from all the transducers of the array probes at a time, receive reflection echoes thereof by all the transducers, combine A scope waveforms of elements, the A scope waveforms being stored in the waveform memory, by the phase combining unit, and perform evaluation, wherein the ultrasonic flaw detection equipment is configured to perform a vertical flaw detection and an oblique flaw detection, for each array probe, the exciting unit is configured to excite the transducers concurrently to emit ultrasonic waves, the ultrasonic waves entering the material from an incident side, which is a side along which each array probe is placed, and reaching a counter side facing the incident side, so that the vertical flaw detection is performed and the plurality of transducers are vibrated once for a first time, for each array probe, the exciting unit is configured to excite the transducers while gradually shifting timing to emit ultrasonic waves, the ultrasonic waves entering the material from the incident side and reaching one of adjacent sides of the incident side, so that the plurality of transducers are vibrated once for a second time and the oblique flaw detection is performed, and the exciting unit sets no actual focus of the ultrasonic waves in the material being tested by setting an actual focus of the ultrasonic waves allowed to enter by the vertical and oblique flaw detections to an outside of the counter side or the adjacent sides or by not allowing the ultrasonic waves to be focused.