Method and device for ultrasonic examination of faces of the int

Details Method and device for ultrasonic examination of faces of the int Method and device for ultrasonic examination of faces of the int

1995-02-24

1996-11-19

Jordan, Charles T.

Induced nuclear reactions: processes, systems, and elements

Testing, sensing, measuring, or detecting a fission reactor...

Leak detection

376258, 376247, 376457, G21C 1700

Patent

active

055770886

ABSTRACT:
The tubular cladding (1) comprises an internal surface of substantially prismatic shape, having successive faces. An ultrasonic examination head (3) makes it possible to emit ultrasound waves in the form of pulses from the outside of the cladding (1), so that the ultrasound waves pass through the wall of the cladding (1) and scan the wall over its entire periphery. The frequency of the ultrasound pulses is adjusted as a function of the circumferential scanning speed of the cladding (1). An ultrasound signal reflected by the internal surface of the cladding (1) is recorded and the reflected signal is analyzed in order to examine the number and the amplitude of the faces and the variation in thickness of the tubular cladding (1) over one revolution.

REFERENCES:
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patent: 4441369 (1984-04-01), Lessard et al.
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patent: 4918989 (1990-04-01), Desruelles et al.
patent: 5063780 (1991-11-01), Landry et al.
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Search Report FR 94 02214.
PCT/DE90/00204.
Abstracts of Japan, vol. 8, No. 97 (P-272) "Method for Discriminating Wall Thickness of Pipe Body".

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