FR2371688A1 - METHOD AND DEVICE FOR DETERMINING THE SPEED OF PARTICLES IN CONVEYOR CURRENTS - Google Patents

METHOD AND DEVICE FOR DETERMINING THE SPEED OF PARTICLES IN CONVEYOR CURRENTS

Info

Publication number
FR2371688A1
FR2371688A1 FR7734875A FR7734875A FR2371688A1 FR 2371688 A1 FR2371688 A1 FR 2371688A1 FR 7734875 A FR7734875 A FR 7734875A FR 7734875 A FR7734875 A FR 7734875A FR 2371688 A1 FR2371688 A1 FR 2371688A1
Authority
FR
France
Prior art keywords
particles
determining
speed
barriers
gamma
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.)
Withdrawn
Application number
FR7734875A
Other languages
French (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.)
KERNENERGIEVERWERT GES fur
Original Assignee
KERNENERGIEVERWERT GES fur
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 KERNENERGIEVERWERT GES fur filed Critical KERNENERGIEVERWERT GES fur
Publication of FR2371688A1 publication Critical patent/FR2371688A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/18—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the time taken to traverse a fixed distance
    • G01P5/20—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the time taken to traverse a fixed distance using particles entrained by a fluid stream
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/005—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by using a jet directed into the fluid
    • G01P5/006—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by using a jet directed into the fluid the jet used is composed of ionised or radioactive particles
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06G7/19—Arrangements for performing computing operations, e.g. operational amplifiers for forming integrals of products, e.g. Fourier integrals, Laplace integrals, correlation integrals; for analysis or synthesis of functions using orthogonal functions
    • G06G7/1928—Arrangements for performing computing operations, e.g. operational amplifiers for forming integrals of products, e.g. Fourier integrals, Laplace integrals, correlation integrals; for analysis or synthesis of functions using orthogonal functions for forming correlation integrals; for forming convolution integrals
    • G06G7/1935—Arrangements for performing computing operations, e.g. operational amplifiers for forming integrals of products, e.g. Fourier integrals, Laplace integrals, correlation integrals; for analysis or synthesis of functions using orthogonal functions for forming correlation integrals; for forming convolution integrals by converting at least one the input signals into a two level signal, e.g. polarity correlators

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • Measurement Of Radiation (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Measuring Volume Flow (AREA)

Abstract

Procédé de détermination de la vitesse de particules dans des courants de transport. Au moyen de deux barrières gamma, placées l'une derrière l'autre dans le sens de l'écoulement, on fait passer un rayonnement à travers le courant de transport, on mesure ou enregistre l'absorption gamma des deux barrières en fonction du temps et on détermine le déphasage des mêmes absorptions des deux barrières gamma. Dispositif pour la mise en oeuvre de ce procédé. Application : entre autres à la détermination de la vitesse de nodules de manganèse lors de leur extraction du fond de la mer.A method of determining the velocity of particles in transport streams. By means of two gamma barriers, placed one behind the other in the direction of flow, radiation is passed through the transport current, the gamma absorption of the two barriers is measured or recorded as a function of time and the phase shift of the same absorptions of the two gamma barriers is determined. Device for implementing this method. Application: among others to the determination of the speed of manganese nodules during their extraction from the seabed.

FR7734875A 1976-11-20 1977-11-21 METHOD AND DEVICE FOR DETERMINING THE SPEED OF PARTICLES IN CONVEYOR CURRENTS Withdrawn FR2371688A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762652872 DE2652872A1 (en) 1976-11-20 1976-11-20 METHOD AND DEVICE FOR DETERMINING PARTICLE VELOCITIES IN CONVEYOR FLOWS

Publications (1)

Publication Number Publication Date
FR2371688A1 true FR2371688A1 (en) 1978-06-16

Family

ID=5993608

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7734875A Withdrawn FR2371688A1 (en) 1976-11-20 1977-11-21 METHOD AND DEVICE FOR DETERMINING THE SPEED OF PARTICLES IN CONVEYOR CURRENTS

Country Status (4)

Country Link
JP (1) JPS5364573A (en)
DE (1) DE2652872A1 (en)
FR (1) FR2371688A1 (en)
GB (1) GB1578048A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492106A1 (en) * 1980-09-23 1982-04-16 Hans List INSTALLATION FOR DETERMINING THE PASSING CHARACTERISTIC THROUGH AN IMAGINARY MEASUREMENT PLAN OF A PARTICLE TEST THAT MOVES FREELY IN A MAIN DISPLACEMENT DIRECTION
FR2668296A1 (en) * 1990-10-17 1992-04-24 Saint Louis Inst X-RAY SOURCE AND METHOD OF DETECTING MOVING OBJECTS USING THE SOURCE.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU618602B2 (en) * 1988-06-03 1992-01-02 Commonwealth Scientific And Industrial Research Organisation Measurement of flow velocity and mass flowrate
WO2012072126A1 (en) * 2010-12-01 2012-06-07 Siemens Aktiengesellschaft Device and method for measuring the velocity of a multi-phase fluid

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3551672A (en) * 1967-06-28 1970-12-29 Stock Equipment Co Method and apparatus for measuring rates of random pulses and alarm actuated thereby
FR2161757A1 (en) * 1971-10-29 1973-07-13 Siderurgie Fse Inst Rech
DE2304618A1 (en) * 1972-02-04 1973-08-09 Gossen Gmbh Mass flow and speed measurement - by correlometer using nuclear radiation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3551672A (en) * 1967-06-28 1970-12-29 Stock Equipment Co Method and apparatus for measuring rates of random pulses and alarm actuated thereby
FR2161757A1 (en) * 1971-10-29 1973-07-13 Siderurgie Fse Inst Rech
DE2304618A1 (en) * 1972-02-04 1973-08-09 Gossen Gmbh Mass flow and speed measurement - by correlometer using nuclear radiation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492106A1 (en) * 1980-09-23 1982-04-16 Hans List INSTALLATION FOR DETERMINING THE PASSING CHARACTERISTIC THROUGH AN IMAGINARY MEASUREMENT PLAN OF A PARTICLE TEST THAT MOVES FREELY IN A MAIN DISPLACEMENT DIRECTION
FR2668296A1 (en) * 1990-10-17 1992-04-24 Saint Louis Inst X-RAY SOURCE AND METHOD OF DETECTING MOVING OBJECTS USING THE SOURCE.

Also Published As

Publication number Publication date
DE2652872A1 (en) 1978-05-24
GB1578048A (en) 1980-10-29
JPS5364573A (en) 1978-06-09

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Legal Events

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