GB950947A - Improvements in or relating to period meters for nuclear reactors - Google Patents

Improvements in or relating to period meters for nuclear reactors

Info

Publication number
GB950947A
GB950947A GB17458/61A GB1745861A GB950947A GB 950947 A GB950947 A GB 950947A GB 17458/61 A GB17458/61 A GB 17458/61A GB 1745861 A GB1745861 A GB 1745861A GB 950947 A GB950947 A GB 950947A
Authority
GB
United Kingdom
Prior art keywords
logarithmic amplifier
output
thermistor
transistor
amplifier
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
GB17458/61A
Other languages
English (en)
Inventor
Donald Harrison
Eliot Patrick Fowler
Gerald Keith Lunn
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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
Priority to NL278375D priority Critical patent/NL278375A/xx
Application filed by UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB17458/61A priority patent/GB950947A/en
Priority to US187543A priority patent/US3233106A/en
Priority to DEU8943A priority patent/DE1185737B/de
Priority to FR897333A priority patent/FR1323270A/fr
Publication of GB950947A publication Critical patent/GB950947A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/30—Measuring half-life of a radioactive substance
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/18—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals
    • G06G7/184—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals using capacitive elements
    • G06G7/186—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals using capacitive elements using an operational amplifier comprising a capacitor or a resistor in the feedback loop
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/14—Period meters
    • 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)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Hardware Design (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Software Systems (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • Amplifiers (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
GB17458/61A 1961-05-12 1961-05-12 Improvements in or relating to period meters for nuclear reactors Expired GB950947A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL278375D NL278375A (forum.php) 1961-05-12
GB17458/61A GB950947A (en) 1961-05-12 1961-05-12 Improvements in or relating to period meters for nuclear reactors
US187543A US3233106A (en) 1961-05-12 1962-04-16 Period meters having a variable time constant
DEU8943A DE1185737B (de) 1961-05-12 1962-05-10 Schaltungsanordnung zur Messung der Periode eines Kernreaktors
FR897333A FR1323270A (fr) 1961-05-12 1962-05-11 Périodemètre pour réacteurs nucléaires

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17458/61A GB950947A (en) 1961-05-12 1961-05-12 Improvements in or relating to period meters for nuclear reactors

Publications (1)

Publication Number Publication Date
GB950947A true GB950947A (en) 1964-03-04

Family

ID=10095532

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17458/61A Expired GB950947A (en) 1961-05-12 1961-05-12 Improvements in or relating to period meters for nuclear reactors

Country Status (4)

Country Link
US (1) US3233106A (forum.php)
DE (1) DE1185737B (forum.php)
GB (1) GB950947A (forum.php)
NL (1) NL278375A (forum.php)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6836523B2 (en) * 2001-03-28 2004-12-28 Kabushiki Kaisha Toshiba Radiation measurement device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2968727A (en) * 1957-04-23 1961-01-17 Curtiss Wright Corp Radiation measuring apparatus having means for compensating errors due to atmospheric conditions
US2986636A (en) * 1957-08-15 1961-05-30 Robertshaw Fulton Controls Co Linear and logarithmic amplifiers for compensated ionization chambers
US3069545A (en) * 1958-02-28 1962-12-18 Westinghouse Electric Corp Method and apparatus for determining the state of a nuclear reactor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6836523B2 (en) * 2001-03-28 2004-12-28 Kabushiki Kaisha Toshiba Radiation measurement device
US7139354B2 (en) 2001-03-28 2006-11-21 Kabushiki Kaisha Toshiba Radiation measurement device
US7333585B2 (en) 2001-03-28 2008-02-19 Kabushiki Kaisha Toshiba Radiation measurement device

Also Published As

Publication number Publication date
US3233106A (en) 1966-02-01
DE1185737B (de) 1965-01-21
NL278375A (forum.php)

Similar Documents

Publication Publication Date Title
GB1254998A (en) Colour pyrometers
GB950947A (en) Improvements in or relating to period meters for nuclear reactors
GB1348955A (en) Method ofand apparatus for determining the ohmic resistance of a moving conductor
GB1010818A (en) Frequency standard
GB1097524A (en) Improvements in and relating to thermal testing apparatus
GB1259997A (en) Method and device for modulating or stabilizing a neutron flux obtained from an ion accelerator
GB1000629A (en) Improvements in or relating to wattmeter circuit arrangements
GB1104719A (en) The maintenance of a desired mean temperature in a length of material
SU111443A1 (ru) Радиоактивный регул тор и сигнализатор уровн
GB1241418A (en) Improvements in or relating to apparatus for measuring the value of an alternating electrical signal of any waveform
Mishulina Influence of parameter spread on accuracy of automatic systems(Feedback control dynamic system described by linear differential equation with random coefficients, calculating parameters distribution effect on behavior precision)
GB1396336A (en) Bridge type exposure meter
GB1168123A (en) Measuring System for Infra-Red Energies
GB1141889A (en) Pulsed electric heating system
GB1102582A (en) Improvements in or relating to nuclear radiation flux measuring apparatus
GB1014505A (en) An electronic voltmeter
GB945788A (en) A system for measuring the lattice spacing of a crystal by means of x-rays
GB887267A (en) Improvements in or relating to control systems
BARBASHIN et al. Method for stabilizing a third-order control system with a high amplification factor, also used to increase dynamic accuracy of a servosystem
GB865552A (en) Method of measuring the period of a nuclear reactor
GB913427A (en) Improvements in or relating to methods of, and apparatus for, producing semi-conductor material
WEIDEMANN et al. Entrophy analysis of feedback flight dynamic control systems[Final Report, May 1977-May 1978]
GB813411A (en) Improvements relating to electrical pyrometers
GB1065873A (en) Flux control apparatus for hydrogen masers
GB981178A (en) Improvements in or relating to equivalent operating time apparatus