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Tag Archives: ndt course

History of Ultrasonics

History of Ultrasonics

Prior to world war II, sonar, the technique of sending sound waves through water and observing the returning echoes to characterize submerged objects, inspired early ultrasound investigators to explore ways to apply the concept to medical diagnosis. In 1929 and 1935, Sokolov studied the use of ultrasonic waves in detecting metal objects. Mulhauser, in 1931, obtained a patent for using ... Read More »

Definition of Terms in Piping

Definition of Terms in Piping

BILL – The portion of a pipe, which is enlarged to receive the end of another pipe of the same diameter for the purpose of making a joint; also called a Hub. BLOW-OFF – A controlled outlet on a pipeline used to discharge water. BRANCH – A part of piping system other than the main or riser. BUTT JOINT – ... Read More »

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