Patent · US Active

Method and device for checking a welding seam present at one of the interior surfaces of a reactor pressure vessel

US7690257B2 · kind B2 · utility

3Cited by

15References

9Claims

0Family size

Assignee

Intelligendt Systems & Services GmbH · DE

Inventors

Rainer Meier · Erlangen, DE
Thomas Rehfeldt · Steinfeld (Oldenburg), DE
Peter Kaluza · Mendig, DE

Key dates

Filing date	Apr 30, 2007
Grant date	Apr 6, 2010
Priority date	—
Expiry date	Jan 23, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E30/30
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

In a method and a device for testing a weld seam (8), located on the inner surface of a reactor pressure vessel (2), by which the outer circumference of an instrumentation nozzle (4) leading into the interior of this reactor pressure vessel (2) is welded onto the reactor pressure vessel (2), an ultrasound test probe (20) with a linear ultrasound transducer array (30) is inserted into the instrumentation nozzle (4), which ultrasound transducer array (30) is parallel to the central axis (12) of the instrumentation nozzle (4) in terms of its longitudinal direction, and is used to couple a transmitted ultrasound signal (S) into the instrumentation nozzle (4) in the region of the weld seam (8) and to receive a reflected ultrasound signal (R).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.