Apparatus for mounting a plurality of ultrasonic probes for movement in specified directions for detecting defects in a body
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United States of America Patent
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-
Nov 5, 1996
Grant Date -
N/A
app pub date -
Jul 15, 1993
filing date -
Jul 18, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for detecting defects comprises a pair of ultrasonic probes which are gimballed onto a pair of elongate members. A pair of yokes are gimballed onto the elongate members. Springs cause an interaction between the yokes and the ultrasonic probes such that the ultrasonic beams travel in a plane parallel to the longitudinal direction of the elongate members. The elongate members are slidably mounted on a carriage and the elongate members are arranged apart at a predetermined angle. The carriage is mounted to travel on an arcuate member to scan the corner of joint between a pressure vessel and a nozzle in a direction radially with respect to the axis of the nozzle. The arcuate member is rotatably mounted to a support member to scan the corner or the joint circumferentially with respect to the axis of the nozzle.
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