FR2376411A1 - Procede et dispositif pour mesurer la concentration de fluides - Google Patents

Procede et dispositif pour mesurer la concentration de fluides

Info

Publication number
FR2376411A1
FR2376411A1 FR7739659A FR7739659A FR2376411A1 FR 2376411 A1 FR2376411 A1 FR 2376411A1 FR 7739659 A FR7739659 A FR 7739659A FR 7739659 A FR7739659 A FR 7739659A FR 2376411 A1 FR2376411 A1 FR 2376411A1
Authority
FR
France
Prior art keywords
concentration
antenna
measuring
oscillations
container
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
FR7739659A
Other languages
English (en)
Other versions
FR2376411B1 (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.)
Danske Sukkerfabrikker AS
Original Assignee
Danske Sukkerfabrikker AS
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 Danske Sukkerfabrikker AS filed Critical Danske Sukkerfabrikker AS
Publication of FR2376411A1 publication Critical patent/FR2376411A1/fr
Application granted granted Critical
Publication of FR2376411B1 publication Critical patent/FR2376411B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
    • G01R27/2617—Measuring dielectric properties, e.g. constants
    • G01R27/2635—Sample holders, electrodes or excitation arrangements, e.g. sensors or measuring cells
    • G01R27/267—Coils or antennae arrangements, e.g. coils surrounding the sample or transmitter/receiver antennae
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N22/00—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

L'invention concerne une méthode pour mesurer la concentration d'un fluide, dont la constante diélectrique dépend de la concentration. Selon l'invention, des oscillations électriques à une puissance constante et à une fréquence constante sont fournies par une source A de ces oscillations à une antenne C montée dans un récipient 1 du liquide dans les confins d'une cage de Faraday 3 formée dans le récipient et remplie de fluide, et la puissance du signal réfléchi par l'antenne dans le cas d'une déviation par rapport à une correspondance idéale des impédances de l'antenne et de la source est mesurée, les oscillations électriques ayant une fréquence si élevée que la conductivité électrique n'a pas d'influence sensible sur le resultat de la mesure. L'invention s'applique notamment à la surveillance de la cristallisation du sucre
FR7739659A 1976-12-30 1977-12-29 Procede et dispositif pour mesurer la concentration de fluides Granted FR2376411A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK590176A DK149870C (da) 1976-12-30 1976-12-30 Fremgangsmaade til koncentrationsmaaling i et medium

Publications (2)

Publication Number Publication Date
FR2376411A1 true FR2376411A1 (fr) 1978-07-28
FR2376411B1 FR2376411B1 (fr) 1983-05-27

Family

ID=8146044

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7739659A Granted FR2376411A1 (fr) 1976-12-30 1977-12-29 Procede et dispositif pour mesurer la concentration de fluides

Country Status (19)

Country Link
US (1) US4196385A (fr)
JP (1) JPS5387794A (fr)
AR (1) AR216664A1 (fr)
AT (1) AT377096B (fr)
BE (1) BE862085A (fr)
BR (1) BR7708722A (fr)
DD (1) DD133367A5 (fr)
DE (1) DE2755774A1 (fr)
DK (1) DK149870C (fr)
ES (1) ES465505A1 (fr)
FR (1) FR2376411A1 (fr)
GB (1) GB1585398A (fr)
IE (1) IE46212B1 (fr)
IT (1) IT1089737B (fr)
NL (1) NL186114C (fr)
PL (1) PL111804B1 (fr)
SE (1) SE434999B (fr)
YU (1) YU43205B (fr)
ZA (1) ZA777413B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4875940A (en) * 1984-04-19 1989-10-24 The Tongaat-Hulett Group Limited Massecuite supersaturation monitor

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4764718A (en) * 1986-04-23 1988-08-16 Chevron Research Company Microwave oil saturation scanner
US5272027A (en) * 1992-06-11 1993-12-21 Eastman Kodak Company Method of monitoring the preparation of a photographic emulsion by conductivity measurements
DE29617488U1 (de) * 1996-10-08 1997-05-15 pro/M/tec Theisen GmbH, 76332 Bad Herrenalb Mikrowellen-Tauch-Sensor
DE29721039U1 (de) 1997-11-28 1998-02-05 Berthold Technologies GmbH & Co KG, 75323 Bad Wildbad Vorrichtung zur Transmissionsmessung mit Hilfe von Mikrowellen
GB2336679A (en) * 1998-04-22 1999-10-27 Mini Agriculture & Fisheries Method and device for measuring the amount of ice glaze added to frozen foods
US6782328B2 (en) * 1999-01-21 2004-08-24 Rosemount Inc. Measurement of concentration of material in a process fluid
US6644114B1 (en) 1999-12-30 2003-11-11 Mcewan Technologies, Llc Direct PWM reflectometer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1078111A (en) * 1963-02-13 1967-08-02 Microwave Instr Ltd Improvements in or relating to the detection and measurement of water vapour in gases

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3424002A (en) * 1965-06-01 1969-01-28 Marathon Oil Co Apparatus for the determination of location of interfaces between different materials
US3474337A (en) * 1966-12-27 1969-10-21 Jackson & Church Electronics C System for sensing levels and electrical characteristics of fluent materials
US3546926A (en) * 1969-04-29 1970-12-15 Shell Oil Co Bottom sediment and water monitor
US3572119A (en) * 1969-08-07 1971-03-23 Bendix Corp Fluid quantity indicating device
US3684952A (en) * 1970-04-07 1972-08-15 Moisture Register Co Apparatus for measuring dielectric constant
US3695107A (en) * 1970-06-01 1972-10-03 Hertz Carl H Method of measuring the level of a material in a tank, and an apparatus for practicing this method
US3703829A (en) * 1971-04-19 1972-11-28 Honeywell Inc Liquid quantity gaging system
US3832900A (en) * 1971-06-28 1974-09-03 Sperry Rand Corp Apparatus and method for measuring the level of a contained liquid
IT961071B (it) * 1971-09-04 1973-12-10 Cnen Sonda ed installazione per la misura di livelli di interfacce di fluidi e delle costanti dielettri che degli stessi
US3853005A (en) * 1973-08-29 1974-12-10 Measurand Syst Interface measuring apparatus
US3995212A (en) * 1975-04-14 1976-11-30 Sperry Rand Corporation Apparatus and method for sensing a liquid with a single wire transmission line
US4054255A (en) * 1976-04-01 1977-10-18 System Development Corporation Microwave ice detector

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1078111A (en) * 1963-02-13 1967-08-02 Microwave Instr Ltd Improvements in or relating to the detection and measurement of water vapour in gases

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXRV/71 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4875940A (en) * 1984-04-19 1989-10-24 The Tongaat-Hulett Group Limited Massecuite supersaturation monitor

Also Published As

Publication number Publication date
DE2755774C2 (fr) 1987-07-02
IE46212B1 (en) 1983-04-06
YU315977A (en) 1983-04-30
IE46212L (en) 1978-06-30
ZA777413B (en) 1978-10-25
US4196385A (en) 1980-04-01
DK149870B (da) 1986-10-13
AR216664A1 (es) 1980-01-15
YU43205B (en) 1989-06-30
DE2755774A1 (de) 1978-07-06
DD133367A5 (de) 1978-12-27
GB1585398A (en) 1981-03-04
BE862085A (fr) 1978-04-14
NL7714166A (nl) 1978-07-04
BR7708722A (pt) 1978-09-05
SE434999B (sv) 1984-08-27
ATA894977A (de) 1984-06-15
DK590176A (da) 1978-07-01
JPS5387794A (en) 1978-08-02
FR2376411B1 (fr) 1983-05-27
PL111804B1 (en) 1980-09-30
DK149870C (da) 1987-03-23
PL203541A1 (pl) 1978-11-06
IT1089737B (it) 1985-06-18
NL186114B (nl) 1990-04-17
NL186114C (nl) 1990-09-17
ES465505A1 (es) 1979-01-01
AT377096B (de) 1985-02-11
SE7714870L (sv) 1978-07-01

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Legal Events

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ST Notification of lapse