Measuring and testing – Vibration – By mechanical waves
Patent
1987-09-22
1992-03-24
Williams, Hezron E.
Measuring and testing
Vibration
By mechanical waves
G01N 2900
Patent
active
050977105
ABSTRACT:
An ultrasonic flash gauge is disclosed that provides a profile of a weld area in order to determine inside flash conditions in a pipe. The flash gauge is capable of operating at high temperature conditions adjacent to a electric resistance welder, thereby permitting real time control of the inside flash trimming operation. A focused ultrasonic transducer is employed in order to obtain the resolution required for detecting the profile of the flash. The flash gauge is constructed to uniformly maintain a water column between the transducer and the pipe surface to prevent boiling or air bubble entrapment which would interfere with the operation of the transducer.
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Arana Louis M.
Williams Hezron E.
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