Method of and apparatus for checking the degradation of a pressu

Details Method of and apparatus for checking the degradation of a pressu Method of and apparatus for checking the degradation of a pressu

1994-10-07

1997-11-11

Jordan, Charles T.

Induced nuclear reactions: processes, systems, and elements

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

Vessel monitoring or inspection

376258, 376259, G21C 1700

Patent

active

056872046

ABSTRACT:
In a method of and an apparatus for checking the degradation of the pressure vessel of a nuclear reactor with the pressure vessel of the nuclear reactor being directly measured in a non-destructive manner, a magnetic yoke having an exciting coil and a magnetic flux measuring coil is closely placed in contact with the inner wall of the pressure vessel of the nuclear reactor. The hysteresis magnetization characteristics of the closed magnetic path formed by the magnetic yoke and the pressure vessel of the nuclear reactor are measured. The coercive forces are obtained by the hysteresis characteristics. The hardness of the material comprising the pressure vessel of the nuclear reactor at the part of the magnetic path formed in the pressure vessel of the nuclear reactor is obtained from the coercive forces and the degradation of the material comprising the pressure vessel is checked from the hardness.

REFERENCES:
patent: 2353211 (1944-07-01), Zuschlag
patent: 3693075 (1972-09-01), Forster
patent: 4445088 (1984-04-01), Schubel
patent: 4622202 (1986-11-01), Yamada et al.
patent: 4987367 (1991-01-01), Ishikawa et al.
patent: 5059903 (1991-10-01), Otaka et al.
patent: 5134368 (1992-07-01), Otaka et al.
patent: 5245279 (1993-09-01), Bendzsak

Affiliated with

Also associated with

Rating

Method of and apparatus for checking the degradation of a pressu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of and apparatus for checking the degradation of a pressu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of and apparatus for checking the degradation of a pressu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1234954