ULTRASONIC FLAW DETECTION DEVICE

摘要

An ultrasonic flaw detection device (10) including a transmitting ultrasonic transducer (14) for producing multiple shear wave skips (34) between inner (36) and outer (38) surfaces of a test object, a plurality of receiving transducers (16, 18, 20, 22, 24) positioned ahead of and parallel to at generally the same incident angle as the transmitting ultrasonic transducer (14), and a processor (26) electrically connected to the receiving transducers (16, 18, 20, 22, 24) so as to produce a humanly perceivable indication of the reflected energy. The receiving transducers (16, 18, 20, 22, 24) serve to receive energy of the shear wave (34) as reflected from discontinuities in the object (12). Each of the receiving transducers (16, 18, 20, 22, 24) is electronically isolated from the other receiving transducers (16, 18, 20, 22, 24). The receiving transducers (16, 18, 20, 22, 24) are connected to a single channel (30) of the processor (26). A fixture (50) is provided having a first opening (52) for detachably receiving the transmitting ultrasonic transducer (1) and a plurality of receiving openers (54) receiving the receiving transducers (16, 18, 20, 22, 24) therein.