Ultrasonic inspection apparatus and method for locating multiple

Details Ultrasonic inspection apparatus and method for locating multiple Ultrasonic inspection apparatus and method for locating multiple

1986-03-27

1987-02-10

Birmiel, Howard A.

Measuring and testing

Vibration

By mechanical waves

73637, 73642, 73628, G01N 2904

Patent

active

046415319

ABSTRACT:
An ultrasonic inspection apparatus is shown for locating multiple defects in eccentric wall tubing or goods. A plurality of transducers are arranged in mated pairs, each of the pairs including a sender element for transmitting an ultrasonic shear wave and a receiver element for receiving a reflected ultrasonic wave component from the tubular goods being inspected. Each sender element is a point focus transducer having sufficiently high resolution to maintained detectability of defects in the tubular goods. Each receiver element is a wide focal width transducer having a large effective beam width area to compensate for eccentricity in the wall of the tubular goods.

REFERENCES:
patent: 4404853 (1983-09-01), Livingston
patent: 4475399 (1984-10-01), Livingston
patent: 4487072 (1984-12-01), Livingston
patent: 4523468 (1985-06-01), Derkacs et al.
patent: 4541064 (1985-09-01), Livingston
patent: 4559825 (1985-12-01), Martens

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