05085082 is referenced by 45 patents and cites 6 patents.

An apparatus and method for discriminating between flaw depths of 5% and 10% of the tube wall thickness of electric resistance welds are disclosed. At least two electromagnetic acoustic transducers (EMATs) are employed to generate ultrasonic surface and shear waves. A logic circuit discriminating means selectively activates an alarm for flaw depths of about 10% or greater, but does not activate the alarm for flaw depths of about 5% or less, thereby avoiding waste in time and materials.

Title
Apparatus and method of discriminating flaw depths in the inspection of tubular products
Application Number
7/603334
Publication Number
5085082
Application Date
October 24, 1990
Publication Date
February 4, 1992
Inventor
Paul J Latimer
Lynchburg
VA, US
John H Flora
Lynchburg
VA, US
Barry I Cantor
Lynchburg
VA, US
Agent
Daniel S Kalka
Robert J Edwards
Vytas R Matas
Assignee
The Babcock & Wilcox Company
LA, US
IPC
G01N 29/10
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