GB1426211A - Determining the degree of insertion of nuclear reactor control members - Google Patents

Determining the degree of insertion of nuclear reactor control members

Info

Publication number
GB1426211A
GB1426211A GB4096673A GB4096673A GB1426211A GB 1426211 A GB1426211 A GB 1426211A GB 4096673 A GB4096673 A GB 4096673A GB 4096673 A GB4096673 A GB 4096673A GB 1426211 A GB1426211 A GB 1426211A
Authority
GB
United Kingdom
Prior art keywords
degree
nuclear reactor
voltage
primary
control member
Prior art date
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
GB4096673A
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.)
Siemens AG
Original Assignee
Siemens AG
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.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of GB1426211A publication Critical patent/GB1426211A/en
Expired legal-status Critical Current

Links

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
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

1426211 Determining degree of insertion of nuclear reactor control members SIEMENS A G 30 Aug 1973 [31 Aug 1972] 40966/73 Heading G1N The degree of insertion of a nuclear reactor control member 4 in a nuclear reactor core is determined by measuring the voltage developed across a secondary winding 5 which is inductively linked in use by a portion 3 of the control member with a primary coil 6 energized at a frequency not greater than 20 c/s to diminish the influence of stray fields on the measurement. The pressure vessel 1 of a pressurized water power reactor has a stainless steel tube 2 welded thereto into which a ferromagnetic lifting rod portion 3 of the reactor control member 4 extends the degree of insertion in the tube 2 correspondingly varying the coupling between coils 5, 6 wound coaxially around the tube. A temperature stabilized A.C. source 8 supplies 6 c/s A.C. to primary 6 and the secondary winding 5 voltage is fed via leads 19 to evaluation circuit 20 in which the voltage is rectified 22, filtered 23 and then applied to amplifier 24 where it is compared with a reference on line 25. The amplifier output may be indicated on line 26 or applied to upper and lower limit signalling devices 29, 30. The number of turns of the primary winding may be increased at its ends or supplementary windings provided so as to increase the sensitivity at the upper and lower limits of the stroke of the control rod. The temperature compensation for the primary voltage can be superimposed on the signal leaving filter 23 by means of a second full-wave rectifier 27 and filter 28.
GB4096673A 1972-08-31 1973-08-30 Determining the degree of insertion of nuclear reactor control members Expired GB1426211A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722242951 DE2242951B2 (en) 1972-08-31 1972-08-31 POSITION INDICATOR FOR A CONTROL ROD MOVABLE IN A NUCLEAR REACTOR

Publications (1)

Publication Number Publication Date
GB1426211A true GB1426211A (en) 1976-02-25

Family

ID=5855167

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4096673A Expired GB1426211A (en) 1972-08-31 1973-08-30 Determining the degree of insertion of nuclear reactor control members

Country Status (6)

Country Link
JP (1) JPS4967094A (en)
CH (1) CH552872A (en)
DE (1) DE2242951B2 (en)
FR (1) FR2198222B1 (en)
GB (1) GB1426211A (en)
IT (1) IT993036B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2563904A1 (en) * 1984-05-02 1985-11-08 Westinghouse Electric Corp METHOD FOR TEMPERATURE COMPENSATION OF A BAR POSITION INDICATION DEVICE, PARTICULARLY FOR A NUCLEAR REACTOR
GB2163259A (en) * 1984-05-02 1986-02-19 Westinghouse Electric Corp Rod position indication system
GB2190507A (en) * 1986-05-16 1987-11-18 Kollmorgen Corp Inductive sensor or transducer for use in hostile environments
US4714926A (en) * 1984-05-02 1987-12-22 Westinghouse Electric Corp. Rod position indication system with temperature compensation
GB2205951A (en) * 1987-06-17 1988-12-21 Sony Corp Detecting the amount of wire on a reel
WO1997023880A1 (en) * 1995-12-22 1997-07-03 Siemens Aktiengesellschaft Method and device for determining the position of a control rod of a nuclear power plant

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5249858A (en) * 1975-10-16 1977-04-21 Westinghouse Electric Corp Digital position detector for phase coding
DE3105256A1 (en) * 1981-02-13 1982-09-09 Brown, Boveri & Cie Ag, 6800 Mannheim "METHOD AND DEVICE FOR DETERMINING THE SUBMERSIBLE DEPTH OF CORE LEVELS"

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2563904A1 (en) * 1984-05-02 1985-11-08 Westinghouse Electric Corp METHOD FOR TEMPERATURE COMPENSATION OF A BAR POSITION INDICATION DEVICE, PARTICULARLY FOR A NUCLEAR REACTOR
GB2160978A (en) * 1984-05-02 1986-01-02 Westinghouse Electric Corp Method for temperature compensating a rod position indication system
GB2163259A (en) * 1984-05-02 1986-02-19 Westinghouse Electric Corp Rod position indication system
US4631537A (en) * 1984-05-02 1986-12-23 Westinghouse Electric Corp. Method for temperature compensating a rod position indication system
US4714926A (en) * 1984-05-02 1987-12-22 Westinghouse Electric Corp. Rod position indication system with temperature compensation
GB2190507A (en) * 1986-05-16 1987-11-18 Kollmorgen Corp Inductive sensor or transducer for use in hostile environments
US4887465A (en) * 1986-05-16 1989-12-19 Kollmorgen Corporation Transducers for hostile environments
GB2190507B (en) * 1986-05-16 1990-08-29 Kollmorgen Corp Transducers for hostile environments
GB2205951A (en) * 1987-06-17 1988-12-21 Sony Corp Detecting the amount of wire on a reel
WO1997023880A1 (en) * 1995-12-22 1997-07-03 Siemens Aktiengesellschaft Method and device for determining the position of a control rod of a nuclear power plant

Also Published As

Publication number Publication date
CH552872A (en) 1974-08-15
JPS4967094A (en) 1974-06-28
FR2198222B1 (en) 1976-06-18
DE2242951B2 (en) 1976-09-16
DE2242951A1 (en) 1974-03-28
FR2198222A1 (en) 1974-03-29
IT993036B (en) 1975-09-30

Similar Documents

Publication Publication Date Title
US4188577A (en) Pulse eddy current testing apparatus for magnetic materials, particularly tubes
GB2012431A (en) Electromagnetic Position Transducer Uses Eddy Currents Induced in Conductive Member
US2226275A (en) Magnetic thickness gauge
GB1401689A (en) Level gauge of liquid metal
GB1426211A (en) Determining the degree of insertion of nuclear reactor control members
US2796863A (en) Pressure responsive pick-up measuring device
GB619525A (en) Apparatus for measuring and detecting magnetic fields
FR2445005A1 (en) Solenoid for operating valve hydraulic system - has position-detecting device not increasing axial length of solenoid
GB834011A (en) Improvements in or relating to devices for measuring liquid flow
GB1385198A (en) Method and apparatus for testing ferromagnetic material
GB993516A (en) Improvements in pressure measuring transducers
GB2000298A (en) Electromagnetic position indicator
FR2364432A2 (en) Position detector without mechanical contact - partic. useful for detecting position of rods in a nuclear reactor
GB1163105A (en) A Method of and Apparatus for Measuring Surface Resistivity
SU708263A1 (en) Device for measuring the quantity of coil turns
JPS56147086A (en) Flux gate type magnetic sensor
JPS58211608A (en) Induction type continuous displacement sensor
GB862806A (en) Improvements in or relating to sizing devices
GB1283357A (en) Improvements in or relating to measurement of length magnetically
SU136921A1 (en) Inductive Liquid Level Gauge
SU779925A1 (en) Device for checking coil turns number
SU563617A1 (en) Process of electromagnetic flaw detection in circular section pipes
SU506811A1 (en) AC to DC converter
SU1670569A1 (en) Magnetosensitive unit
GB1198031A (en) An Improved Apparatus for Ascertaining the Position of a Core within a Body

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees