FR2386820A1 - Dispositif pour la determination de la teneur en eau de materiaux isotropes par absorption d'hyperfrequences - Google Patents

Dispositif pour la determination de la teneur en eau de materiaux isotropes par absorption d'hyperfrequences

Info

Publication number
FR2386820A1
FR2386820A1 FR7810426A FR7810426A FR2386820A1 FR 2386820 A1 FR2386820 A1 FR 2386820A1 FR 7810426 A FR7810426 A FR 7810426A FR 7810426 A FR7810426 A FR 7810426A FR 2386820 A1 FR2386820 A1 FR 2386820A1
Authority
FR
France
Prior art keywords
absorption
water content
sample
measuring cell
hyperfrequences
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Withdrawn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
FR7810426A
Other languages
English (en)
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of FR2386820A1 publication Critical patent/FR2386820A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • G01N22/04—Investigating moisture content

Landscapes

  • 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)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

Le principe de mesure repose sur l'absorption d'hyperfréquences par la teneur en eau de l'échantillon. L'échantillon se trouve dans une cellule fermé de mesure à réflexion simple, alimentée par un oscillateur hyperfréquences, modulé en fréquence dans la gamme de fréquences d'absorption de l'échantillon Ce dernier remplit totalement ou partiellement la terminaison d'un guide d'ondes circulaire ou rectangulaire 1, constituant la cellule de mesure. Le guide est fermé par une plaque de court-circuit 8, de sorte que deux ondes planes progressives prédominent dans la cellule de mesure, avec une répartition de champ homogène.
FR7810426A 1977-04-09 1978-04-07 Dispositif pour la determination de la teneur en eau de materiaux isotropes par absorption d'hyperfrequences Withdrawn FR2386820A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772715947 DE2715947A1 (de) 1977-04-09 1977-04-09 Vorrichtung zur bestimmung des wassergehaltes von isotropen materialien mit hilfe der mikrowellenabsorption

Publications (1)

Publication Number Publication Date
FR2386820A1 true FR2386820A1 (fr) 1978-11-03

Family

ID=6006029

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7810426A Withdrawn FR2386820A1 (fr) 1977-04-09 1978-04-07 Dispositif pour la determination de la teneur en eau de materiaux isotropes par absorption d'hyperfrequences

Country Status (9)

Country Link
US (1) US4206399A (fr)
JP (1) JPS53146697A (fr)
BE (1) BE865772A (fr)
DE (1) DE2715947A1 (fr)
DK (1) DK154678A (fr)
FR (1) FR2386820A1 (fr)
IT (1) IT7822116A0 (fr)
NL (1) NL7803678A (fr)
SE (1) SE7803906L (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5561914U (fr) * 1978-10-24 1980-04-26
US4381485A (en) * 1981-02-23 1983-04-26 Steinbrecher Corporation Microwave test apparatus and method
DE3150202A1 (de) * 1981-12-18 1983-06-23 Philips Patentverwaltung Gmbh, 2000 Hamburg Anordnung zur messung der feuchte
US4485284A (en) * 1982-01-11 1984-11-27 Advanced Moisture Technology, Inc. Apparatus and process for microwave moisture analysis
US4499418A (en) * 1982-08-05 1985-02-12 Texaco Inc. Water cut monitoring means and method
JPS5937465A (ja) * 1982-08-25 1984-02-29 Nippon Steel Corp 誘電率測定方法
FI844061L (fi) * 1984-10-16 1986-04-17 Kemira Oy Foerfarande och anordning foer maetning av fukthalten eller torrsubstanshalten av aemnen.
US4716360A (en) * 1985-08-16 1987-12-29 Advanced Moisture Technology, Inc. Moisture detector apparatus and method
US4767981A (en) * 1986-06-02 1988-08-30 Advanced Moisture Technology, Inc. Moisture content detector
US4862060A (en) * 1986-11-18 1989-08-29 Atlantic Richfield Company Microwave apparatus for measuring fluid mixtures
US5263363A (en) * 1988-02-11 1993-11-23 Agar Corporation, Ltd. Apparatus and method for determining the percentage of a fluid in a mixture of fluids
DE3920787A1 (de) * 1989-06-24 1991-01-10 Kernforschungsz Karlsruhe Verfahren und eine vorrichtung zur messung des volumentrischen wasseranteils mineralischer und/oder organischer gemische
US6129761A (en) * 1995-06-07 2000-10-10 Reprogenesis, Inc. Injectable hydrogel compositions
FR2794529B1 (fr) * 1999-06-07 2001-08-17 Hydrostop Appareil de mesure du taux d'humidite de materiaux et produits du genre sable, gravier, beton, etc...
US8092529B2 (en) * 2001-07-16 2012-01-10 Depuy Products, Inc. Meniscus regeneration device
US7569233B2 (en) * 2004-05-04 2009-08-04 Depuy Products, Inc. Hybrid biologic-synthetic bioabsorbable scaffolds
ITMI20121890A1 (it) * 2012-11-06 2014-05-07 Luca Mucchi Dispositivo di misura di parametri, quali l'umidità o la densita¿, di un materiale in polvere o in granuli

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3553573A (en) * 1967-09-07 1971-01-05 John W Lundstrom System for moisture measurement at microwave frequencies
FR2386033A1 (fr) * 1977-03-30 1978-10-27 Bayer Ag Dispositif de mesure de la teneur en eau d'une substance non conductrice de l'electricite

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2611804A (en) * 1948-01-28 1952-09-23 Gen Precision Lab Inc Measuring apparatus
US2548598A (en) * 1950-02-17 1951-04-10 Gen Electric Apparatus for detection of flaws by means of microwaves
US2671884A (en) * 1950-09-19 1954-03-09 Gen Precision Lab Inc Microwave magnetic control
GB1000875A (en) * 1962-02-03 1965-08-11 British Cast Iron Res Ass Improvements in means for measuring the moisture content of sand and like granular or pulverulent material
US3379971A (en) * 1965-03-16 1968-04-23 Navy Usa Microwave means and method for measuring the electrolytic content of solutions
GB1251362A (fr) * 1968-07-19 1971-10-27
GB1334791A (en) * 1970-07-14 1973-10-24 Rank Organisation Ltd Moisture measurement

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3553573A (en) * 1967-09-07 1971-01-05 John W Lundstrom System for moisture measurement at microwave frequencies
FR2386033A1 (fr) * 1977-03-30 1978-10-27 Bayer Ag Dispositif de mesure de la teneur en eau d'une substance non conductrice de l'electricite

Also Published As

Publication number Publication date
BE865772A (fr) 1978-10-09
DE2715947A1 (de) 1978-10-19
JPS53146697A (en) 1978-12-20
SE7803906L (sv) 1978-10-10
IT7822116A0 (it) 1978-04-07
DK154678A (da) 1978-10-10
US4206399A (en) 1980-06-03
NL7803678A (nl) 1978-10-11

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Legal Events

Date Code Title Description
RE Withdrawal of published application