Measurement system of torsion vibration for reactor internal...

Induced nuclear reactions: processes – systems – and elements – Reactor structures – Circulating fluid within reactor

Reexamination Certificate

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Details

C376S245000, C376S246000, C376S260000, C376S392000, C376S407000, C073S650000, C073S862410, C073S862510

Reexamination Certificate

active

06876715

ABSTRACT:
Object of this invention is to provide an axial torsional vibration measurement device of the reactor internal pump capable of measuring the axial torsional vibration easily. The vibration detector2that detects vibration in the radial direction, and the sound detector3that detects vibration in the circumferential direction are fitted on cylindrical motor casing6, which contains the motor of a reactor internal pump. The dimension of both signals of a vibration waveform signal detected by the vibration detector2, and a sound waveform signal detected by the sound detector3are matched in vibration calculating device15, to thereby obtain an axial torsion vibration of a motor from the difference of both signals.

REFERENCES:
patent: 4408294 (1983-10-01), Imam
patent: 5206816 (1993-04-01), Hill et al.
patent: 6456945 (2002-09-01), Sonnichsen et al.
patent: 20020170349 (2002-11-01), Soneda et al.
patent: 07-005056 (1995-01-01), None

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