FR2393297A1 - Procede et appareil pour determiner la proportion d'une matiere dans un melange en mouvement - Google Patents

Procede et appareil pour determiner la proportion d'une matiere dans un melange en mouvement

Info

Publication number
FR2393297A1
FR2393297A1 FR7816141A FR7816141A FR2393297A1 FR 2393297 A1 FR2393297 A1 FR 2393297A1 FR 7816141 A FR7816141 A FR 7816141A FR 7816141 A FR7816141 A FR 7816141A FR 2393297 A1 FR2393297 A1 FR 2393297A1
Authority
FR
France
Prior art keywords
proportion
determining
moving mixture
mass
output signal
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.)
Granted
Application number
FR7816141A
Other languages
English (en)
Other versions
FR2393297B1 (fr
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.)
Coal Industry Patents Ltd
Original Assignee
Coal Industry Patents Ltd
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 Coal Industry Patents Ltd filed Critical Coal Industry Patents Ltd
Publication of FR2393297A1 publication Critical patent/FR2393297A1/fr
Application granted granted Critical
Publication of FR2393297B1 publication Critical patent/FR2393297B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/20—Measuring radiation intensity with scintillation detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/17—Circuit arrangements not adapted to a particular type of detector
    • G01T1/178—Circuit arrangements not adapted to a particular type of detector for measuring specific activity in the presence of other radioactive substances, e.g. natural, in the air or in liquids such as rain water

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Radiation (AREA)
  • Control Of Conveyors (AREA)
  • Nuclear Medicine (AREA)

Abstract

L'invention concerne un procédé et un appareil pour déterminer la proportion d'une matière dans un mélange en mouvement La proportion d'une matière radio-active 61 d'un mélange en mouvement est déterminée par un capteur 30 qui émet un signal de sortie proportionnel à la masse de la matière Le signal de sortie est calibré en fonction de Valeurs de référence connues pour donner une valeur quantitative de la masse. Le capteur comporte des cristaux à scintillation 21. L'irrégularité de la répartition des matières est surmontée par l'établissement d'une moyenne des rayonnements détectés pendant une certaine periode. Application à la détermination de la composition de matière minérale transportée dans une mine.
FR7816141A 1977-05-31 1978-05-30 Procede et appareil pour determiner la proportion d'une matiere dans un melange en mouvement Granted FR2393297A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB22941/77A GB1593991A (en) 1977-05-31 1977-05-31 Method of and apparatus for determining the proportion of at least one material in a moving mixture of materials

Publications (2)

Publication Number Publication Date
FR2393297A1 true FR2393297A1 (fr) 1978-12-29
FR2393297B1 FR2393297B1 (fr) 1984-05-25

Family

ID=10187545

Family Applications (2)

Application Number Title Priority Date Filing Date
FR7816142A Granted FR2393325A1 (fr) 1977-05-31 1978-05-30 Capteur de rayonnement
FR7816141A Granted FR2393297A1 (fr) 1977-05-31 1978-05-30 Procede et appareil pour determiner la proportion d'une matiere dans un melange en mouvement

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR7816142A Granted FR2393325A1 (fr) 1977-05-31 1978-05-30 Capteur de rayonnement

Country Status (7)

Country Link
US (2) US4275298A (fr)
AU (2) AU515060B2 (fr)
CA (2) CA1118915A (fr)
DE (2) DE2823783A1 (fr)
FR (2) FR2393325A1 (fr)
GB (1) GB1593991A (fr)
ZA (2) ZA783096B (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4267446A (en) * 1979-04-03 1981-05-12 Geoco, Inc. Dual scintillation detector for determining grade of uranium ore
ZA816802B (en) * 1980-10-21 1982-09-29 Coal Industry Patents Ltd Probe equipment for use in underground mining
GB2117900A (en) * 1982-03-25 1983-10-19 Michael Anthony Newell Radiation detector
US4679738A (en) * 1984-09-10 1987-07-14 Westinghouse Electric Corp. Conveyor for sorting radioactive waste
US4658142A (en) * 1984-09-10 1987-04-14 Westinghouse Electric Corp. Apparatus for detecting radiation in a container
US4646978A (en) * 1984-09-10 1987-03-03 Westinghouse Electric Corp. Method for sorting radioactive waste
US4682034A (en) * 1985-05-06 1987-07-21 Her Majesty The Queen In Right Of Canada Blast wave densitometer system
USRE34070E (en) * 1988-07-29 1992-09-22 Troxler Electronic Laboratories, Inc. Method and system for transferring calibration data between calibrated measurement instruments
US4864842A (en) * 1988-07-29 1989-09-12 Troxler Electronic Laboratories, Inc. Method and system for transferring calibration data between calibrated measurement instruments
US5049351A (en) * 1989-07-03 1991-09-17 Westinghouse Electric Corp. Method and apparatus for determining enrichment of uranium dioxide powder
GB9112397D0 (en) * 1991-06-10 1991-07-31 Infrared Eng Apparatus for sampling a material travelling past a sampling region
US5796109A (en) * 1996-05-03 1998-08-18 Frederick Energy Products Unitized radiation detector assembly
US5742057A (en) * 1996-05-03 1998-04-21 Frederick Energy Products Unitized scintillation detector assembly with axial and radial suspension systems
US6355932B1 (en) 1998-02-25 2002-03-12 General Electric Company Maximum volume ruggedized nuclear detector
CN112155242A (zh) * 2020-10-22 2021-01-01 上海烟草集团有限责任公司 一种烟丝掺配过程均匀性的判断方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2717693A (en) * 1949-09-06 1955-09-13 Fred T Holmes Method of and apparatus for sorting radiation emissive material
FR1263281A (fr) * 1960-04-25 1961-06-09 Commissariat Energie Atomique Procédé et installation pour le triage de minerais radioactifs ou objets radioactivés
US3052353A (en) * 1958-07-18 1962-09-04 Floyd V Richardson Ore sorting device
US3075641A (en) * 1959-09-01 1963-01-29 K & H Equipment Ltd Materials sorting apparatus
GB994879A (en) * 1960-07-06 1965-06-10 Harshaw Chem Corp Improvements in or relating to scintillation detectors

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA478286A (fr) * 1951-11-06 David Malmqvist Johan Methodes et dispositifs de separation de minerais et de roches radio-actifs
NL86504C (nl) * 1953-08-28 1957-10-15 Stamicarbon Werkwijze en inrichting voor het meten van de röntgenstralenabsorptie en het bewerken van kool.
US3007052A (en) * 1958-12-03 1961-10-31 Industrial Nucleonics Corp Measuring apparatus
FR1278051A (fr) * 1960-10-24 1961-12-08 Commissariat Energie Atomique Procédé et installation de triage en continu, d'éléments séparés, en fonction de la valeur d'une de leurs caractéristiques physiques, notamment, en fonction de leur radioactivité
US3341706A (en) * 1962-05-04 1967-09-12 Dresser Ind Apparatus for and method of terrestrial surveying
US3237765A (en) * 1964-05-28 1966-03-01 Copper Range Co Copper ore concentration by induced radioactivity
US3445651A (en) * 1964-07-06 1969-05-20 Hilger & Watts Ltd Radiometric analysis of powdered sample material
US3678268A (en) * 1970-11-05 1972-07-18 Republic Steel Corp Bulk density gage and bulk density control system
SU379891A1 (ru) * 1971-03-01 1973-04-20 Устройство для определения контрастности минерального сырья
US3732420A (en) * 1971-06-25 1973-05-08 Picker Corp Automatic calibration system for a scintillation device
US3882309A (en) * 1973-07-30 1975-05-06 Texaco Inc Dual scintillation detector, single photomultiplier density logging system
US3898463A (en) * 1973-08-13 1975-08-05 Task Inc Scintillation counting apparatus
FR2271880A1 (en) * 1974-05-22 1975-12-19 Siderurgie Fse Inst Rech High speed sorting of iron ores - using radioactive source to produce X-ray fluorescence due to iron and calcium
US4064440A (en) * 1976-06-22 1977-12-20 Roder Frederick L X-ray or gamma-ray examination device for moving objects
GB1547341A (en) * 1976-06-28 1979-06-13 Bicron Corp Shock-resistant gamma ray detector tube
US4118623A (en) * 1977-03-31 1978-10-03 Continental Oil Company Continuous quality control of mined hard and soft coals

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2717693A (en) * 1949-09-06 1955-09-13 Fred T Holmes Method of and apparatus for sorting radiation emissive material
US3052353A (en) * 1958-07-18 1962-09-04 Floyd V Richardson Ore sorting device
US3075641A (en) * 1959-09-01 1963-01-29 K & H Equipment Ltd Materials sorting apparatus
FR1263281A (fr) * 1960-04-25 1961-06-09 Commissariat Energie Atomique Procédé et installation pour le triage de minerais radioactifs ou objets radioactivés
GB994879A (en) * 1960-07-06 1965-06-10 Harshaw Chem Corp Improvements in or relating to scintillation detectors

Also Published As

Publication number Publication date
CA1118915A (fr) 1982-02-23
AU3666378A (en) 1979-12-06
US4275298A (en) 1981-06-23
AU515060B2 (en) 1981-03-12
CA1114524A (fr) 1981-12-15
FR2393297B1 (fr) 1984-05-25
FR2393325A1 (fr) 1978-12-29
US4374326A (en) 1983-02-15
FR2393325B3 (fr) 1981-01-02
DE2823705A1 (de) 1978-12-07
AU3666478A (en) 1979-12-06
ZA783095B (en) 1979-06-27
DE2823783A1 (de) 1978-12-14
ZA783096B (en) 1979-06-27
GB1593991A (en) 1981-07-22

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TP Transmission of property
ST Notification of lapse