INCORE NEUTRON INSTRUMENTATION SYSTEM

INCORE NEUTRON INSTRUMENTATION SYSTEM

Non-contact sensors are used as a pull-out limit switch and a safety limit switch, so that contact between a drive cable and a thimble tube and both limit switches is avoided and abrasion of both limit switches is eliminated. In addition, erroneous detection due to vibration of the thimble tube is p...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Aiba, Toshihide, Saito, Atsushi
Format: Patent
Sprache:eng
Schlagworte:
MEASUREMENT OF NUCLEAR OR X-RADIATION
MEASURING
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
NUCLEAR REACTORS
PHYSICS
TESTING
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Beschreibung
Zusammenfassung:Non-contact sensors are used as a pull-out limit switch and a safety limit switch, so that contact between a drive cable and a thimble tube and both limit switches is avoided and abrasion of both limit switches is eliminated. In addition, erroneous detection due to vibration of the thimble tube is prevented by eliminating contact between the thimble tube and both limit switches, whereby accuracy of passing of a detector is enhanced.