GB1313474A – Magnetic position indicator
– Google Patents
GB1313474A – Magnetic position indicator
– Google Patents
Magnetic position indicator
Info
Publication number
GB1313474A
GB1313474A
GB4686471A
GB4686471A
GB1313474A
GB 1313474 A
GB1313474 A
GB 1313474A
GB 4686471 A
GB4686471 A
GB 4686471A
GB 4686471 A
GB4686471 A
GB 4686471A
GB 1313474 A
GB1313474 A
GB 1313474A
Authority
GB
United Kingdom
Prior art keywords
detectors
rods
loop
coil
control
Prior art date
1970-11-27
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4686471A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1970-11-27
Filing date
1971-10-08
Publication date
1973-04-11
1971-10-08
Application filed by Westinghouse Electric Corp
filed
Critical
Westinghouse Electric Corp
1973-04-11
Publication of GB1313474A
publication
Critical
patent/GB1313474A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
G21C—NUCLEAR REACTORS
G21C17/00—Monitoring; Testing ; Maintaining
G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
G21C17/12—Sensitive element forming part of control element
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y02E30/00—Energy generation of nuclear origin
Y02E30/10—Nuclear fusion reactors
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y02E30/00—Energy generation of nuclear origin
Y02E30/30—Nuclear fission reactors
Abstract
1313474 Proximity detectors WESTING- HOUSE ELECTRIC CORP 8 Oct 1971 [27 Nov 1970] 46864/71 Heading G1N [Also in Division G6] A proximity detector for detecting whether a control rod in a nuclear reactor is raised or lowered, comprises a magnetic core defining two flux loops A and B having common portions C, D, E and F, loop A being closed and excited by A.C. in coil 70, loop B being closed or open according as the upper end of the control rod 42 (which is ferromagnetic) is present or absent and excited by D.C. in coil 66, Fig. 3, or coils 80, Fig. 5, and a pick up coil 72 wound as shown in Fig. 3 or distributed among the regions C, D, E and F. Loop A may include air gaps 67 and magnetic plugs 69 in the housing for the control rod. For a group of eight control rods in a common housing eight detectors of the type shown in Fig. 3 may be arranged to detect the presence of the upper ends of respective control rods at their uppermost position. Eight more detectors of the type shown in Fig. 3 may be arranged just above the lowermost position. Alternatively the lower eight detectors may be of the type shown in Fig. 5, non-magnetic portions of the rods being adjacent the detectors when the rods are fully raised. Permanent magnet inserts 82 control the field due to coils 80 when the ferromagnet portions of the rods are not confronting the detectors.
GB4686471A
1970-11-27
1971-10-08
Magnetic position indicator
Expired
GB1313474A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US9334370A
1970-11-27
1970-11-27
Publications (1)
Publication Number
Publication Date
GB1313474A
true
GB1313474A
(en)
1973-04-11
Family
ID=22238409
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB4686471A
Expired
GB1313474A
(en)
1970-11-27
1971-10-08
Magnetic position indicator
Country Status (12)
Country
Link
US
(1)
US3742409A
(en)
JP
(1)
JPS5112432B1
(en)
AT
(1)
AT314675B
(en)
BE
(1)
BE775692A
(en)
CA
(1)
CA963554A
(en)
CH
(1)
CH545961A
(en)
DE
(1)
DE2156742A1
(en)
FR
(1)
FR2116040A5
(en)
GB
(1)
GB1313474A
(en)
IT
(1)
IT943682B
(en)
NL
(1)
NL7116266A
(en)
SE
(1)
SE372364B
(en)
Families Citing this family (9)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
BE831953A
(en)
*
1975-07-31
1976-02-02
Acec
METHOD OF MEASURING THE POSITION OF THE ADJUSTING BARS OF A NUCLEAR REACTOR
US4170754A
(en)
*
1975-10-16
1979-10-09
Westinghouse Electric Corp.
Phase encoded digital position probe assembly
US4189674A
(en)
*
1978-07-17
1980-02-19
Trw Inc.
Signal transducing means using a bistable magnetic device
US4652820A
(en)
*
1983-03-23
1987-03-24
North American Philips Corporation
Combined position sensor and magnetic motor or bearing
US5392321A
(en)
*
1994-01-24
1995-02-21
Westinghouse Electric Corporation
Method and system for magnetic coupling compensating a rod position indication system
US5568528A
(en)
*
1994-11-21
1996-10-22
Westinghouse Electric Corporation
Method and system for compensating a rod position indication system for non-linearity
US5563922A
(en)
*
1995-10-23
1996-10-08
Aep Energy Services, Inc.
Method and system for indicating the position of control rods of a nuclear reactor
US6160863A
(en)
*
1998-07-01
2000-12-12
Ce Nuclear Power Llc
Variable speed pump for use in nuclear reactor
CN111446015B
(en)
*
2020-03-04
2022-06-21
岭东核电有限公司
Nuclear power station reactor control rod group test method, device, equipment and medium
1970
1970-11-27
US
US00093343A
patent/US3742409A/en
not_active
Expired – Lifetime
1971
1971-10-08
GB
GB4686471A
patent/GB1313474A/en
not_active
Expired
1971-10-19
CA
CA125,474A
patent/CA963554A/en
not_active
Expired
1971-11-16
DE
DE19712156742
patent/DE2156742A1/en
active
Pending
1971-11-16
CH
CH1666171A
patent/CH545961A/xx
not_active
IP Right Cessation
1971-11-19
IT
IT31341/71A
patent/IT943682B/en
active
1971-11-22
AT
AT1003871A
patent/AT314675B/en
not_active
IP Right Cessation
1971-11-22
SE
SE7114944A
patent/SE372364B/xx
unknown
1971-11-23
BE
BE775692A
patent/BE775692A/en
unknown
1971-11-25
FR
FR7142232A
patent/FR2116040A5/fr
not_active
Expired
1971-11-26
NL
NL7116266A
patent/NL7116266A/xx
unknown
1971-11-27
JP
JP46095731A
patent/JPS5112432B1/ja
active
Pending
Also Published As
Publication number
Publication date
CA963554A
(en)
1975-02-25
CH545961A
(en)
1974-02-15
SE372364B
(en)
1974-12-16
FR2116040A5
(en)
1972-07-07
IT943682B
(en)
1973-04-10
DE2156742A1
(en)
1972-06-15
US3742409A
(en)
1973-06-26
AT314675B
(en)
1974-04-25
NL7116266A
(en)
1972-05-30
JPS5112432B1
(en)
1976-04-19
BE775692A
(en)
1972-05-23
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Legal Events
Date
Code
Title
Description
1973-08-22
PS
Patent sealed [section 19, patents act 1949]
1976-05-05
PLNP
Patent lapsed through nonpayment of renewal fees
