GB923799A - Improvements in and relating to safety, alarm or like circuits for monitoring systems - Google Patents

Improvements in and relating to safety, alarm or like circuits for monitoring systems

Info

Publication number
GB923799A
GB923799A GB23449/60A GB2344960A GB923799A GB 923799 A GB923799 A GB 923799A GB 23449/60 A GB23449/60 A GB 23449/60A GB 2344960 A GB2344960 A GB 2344960A GB 923799 A GB923799 A GB 923799A
Authority
GB
United Kingdom
Prior art keywords
safety
reactor
alarm
reference value
value
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
GB23449/60A
Inventor
Peter Forsdike Hartshorn
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB23449/60A priority Critical patent/GB923799A/en
Priority to BE605727A priority patent/BE605727A/en
Priority to JP2424761A priority patent/JPS3923449B1/ja
Publication of GB923799A publication Critical patent/GB923799A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T7/00—Details of radiation-measuring instruments
    • G01T7/12—Provision for actuation of an alarm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J7/00—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs
    • B60J7/08—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of non-sliding type, i.e. movable or removable roofs or panels, e.g. let-down tops or roofs capable of being easily detached or of assuming a collapsed or inoperative position
    • B60J7/12—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of non-sliding type, i.e. movable or removable roofs or panels, e.g. let-down tops or roofs capable of being easily detached or of assuming a collapsed or inoperative position foldable; Tensioning mechanisms therefor, e.g. struts
    • B60J7/1226—Soft tops for convertible vehicles
    • B60J7/1265—Soft tops for convertible vehicles characterised by kinematic movements, e.g. using parallelogram linkages
    • B60J7/1282—Soft tops for convertible vehicles characterised by kinematic movements, e.g. using parallelogram linkages foldable against a main arch before attaining fully open mode
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/02—Devices or arrangements for monitoring coolant or moderator
    • G21C17/04—Detecting burst slugs
    • G21C17/044—Detectors and metering devices for the detection of fission products
    • G21C17/047—Detection and metering circuits
    • 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

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

923,799. Nuclear reactors. GENERAL ELECTRIC CO. Ltd. June 14, 1961 [July 5, 1960], No. 23449/60. Drawings to Specification. Class 39 (4). A safety, alarm or like circuit for a monitoring system in a fluid-cooled, heterogeneous nuclear reactor, in which in operation fluid flowing in the reactor is monitored for fission products at a plurality of positions in the reactor core by respective monitoring means operating in cyclic succession and in which the monitored signals are caused to operate safety or alarm devices when any of the monitored signals exceeds a reference value, has means provided for computing the average value of the signals derived during a cycle from all the monitoring means, or from a group of such means, and means for deriving the reference value from the computed value. The reference value is usually established as a pre-set percentage in excess of the computed value. This arrangement prevents the safety or alarm device being operated unnecessarily due, for example, to a charge of reactivity of the reactor or some other transient or systematic change of conditions. Specification 889,203 is referred to.
GB23449/60A 1960-07-05 1960-07-05 Improvements in and relating to safety, alarm or like circuits for monitoring systems Expired GB923799A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB23449/60A GB923799A (en) 1960-07-05 1960-07-05 Improvements in and relating to safety, alarm or like circuits for monitoring systems
BE605727A BE605727A (en) 1960-07-05 1961-07-04 Improvements to protection circuits, alarms or other similar circuits for surveillance installations.
JP2424761A JPS3923449B1 (en) 1960-07-05 1961-07-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB23449/60A GB923799A (en) 1960-07-05 1960-07-05 Improvements in and relating to safety, alarm or like circuits for monitoring systems

Publications (1)

Publication Number Publication Date
GB923799A true GB923799A (en) 1963-04-18

Family

ID=10195811

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23449/60A Expired GB923799A (en) 1960-07-05 1960-07-05 Improvements in and relating to safety, alarm or like circuits for monitoring systems

Country Status (3)

Country Link
JP (1) JPS3923449B1 (en)
BE (1) BE605727A (en)
GB (1) GB923799A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064171A1 (en) * 1981-04-23 1982-11-10 Westinghouse Electric Corporation Apparatus for monitoring the operational integrity of parameter measuring detectors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064171A1 (en) * 1981-04-23 1982-11-10 Westinghouse Electric Corporation Apparatus for monitoring the operational integrity of parameter measuring detectors

Also Published As

Publication number Publication date
BE605727A (en) 1961-11-03
JPS3923449B1 (en) 1964-10-21

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