Title:
制御棒位置検出装置
Document Type and Number:
Japanese Patent JP4695436
Kind Code:
B2
Abstract:
A control rod position detector including a permanent magnet that is attached on a control rod inserted in a reactor pressure vessel, where the permanent magnet is capable of moving together with the control rod, and a plurality of reed switch mechanisms that are arranged in the reactor pressure vessel at regular intervals in an insertion direction of the control rod. Each of the reed switch mechanisms is provided with a pair of reed switches that are placed so as to overlap with each other in the insertion direction of the control rod. The pair of reed switches are connected to a common wiring. The common wiring is connected to a detector that detects a position of the control rod based on signals from the reed switches.
Inventors:
Mitsuharu Nakamura
Tsukasa Suwazono
Keiichi Ui
Yu Sasa
Goro Yanagi
Kazuhiro Kawagoe
Shinichi Ishizato
Norimitsu Komai
Tsukasa Suwazono
Keiichi Ui
Yu Sasa
Goro Yanagi
Kazuhiro Kawagoe
Shinichi Ishizato
Norimitsu Komai
Application Number:
JP2005129999A
Publication Date:
June 08, 2011
Filing Date:
April 27, 2005
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
G21C17/10; G21C7/16
Domestic Patent References:
| JP5323086A | ||||
| JP55122101A | ||||
| JP9264986A | ||||
| JP2003207591A | ||||
| JP7270584A | ||||
| JP5134084A |
Foreign References:
| US6380734 |
Attorney, Agent or Firm:
Kenji Yoshitake
Hiroyuki Nagai
Junpei Okada
Hirohito Katsunuma
Hiroyuki Nagai
Junpei Okada
Hirohito Katsunuma