BR9903410A - Método e aparelho para medir a densidade de uma substância tendo compensação de água livre - Google Patents

Método e aparelho para medir a densidade de uma substância tendo compensação de água livre

Info

Publication number
BR9903410A
BR9903410A BR9903410-7A BR9903410A BR9903410A BR 9903410 A BR9903410 A BR 9903410A BR 9903410 A BR9903410 A BR 9903410A BR 9903410 A BR9903410 A BR 9903410A
Authority
BR
Brazil
Prior art keywords
substance
free water
density
waveguide
chamber
Prior art date
Application number
BR9903410-7A
Other languages
English (en)
Inventor
David L Mays
Ira B Goldberg
Charles S Hollingsworth
Original Assignee
Allen Bradley Co
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 Allen Bradley Co filed Critical Allen Bradley Co
Publication of BR9903410A publication Critical patent/BR9903410A/pt

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)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Manufacture Of Tobacco Products (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

<B>MéTODO E APARELHO PARA MEDIR A DENSIDADE DE UMA SUBSTâNCIA TENDO COMPENSAçãO DE áGUA LIVRE<D> Um método e aparelho para medir a quantidade de água livre contida em uma substância inclui uma guia de onda (64) tendo lados frontal e traseiro (66, 68) dispostos opostos entre si. O guia de onda (64) define uma câmara (74) para propagar um sinal de microondas através do mesmo. O guia de ondas (64) tem uma extremidade (78) perpendicular aos lados frontal e traseiro (66, 68) que forma um curto na câmara. Os lados frontal e traseiro (66, 68) têm individualmente uma abertura (80) para passar uma substância através da mesma. Um sinal de microondas na faixa de freq³ência de 10-25 gigahertz (GHz) é orientado através da câmara (74) em que o sinal de microondas gerado é refletido de volta do curto da extremidade (78). Os sinais gerados e refletidos formam uma razão que é utilizada por um microprocessador (60) juntamente com a medição de um sensor adjacente (12) que fornece uma medição de constante dielétrica correspondendo á densidade da substância para determinar um peso da substância compensada para água livre.
BR9903410-7A 1998-06-25 1999-06-22 Método e aparelho para medir a densidade de uma substância tendo compensação de água livre BR9903410A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/104,661 US6225812B1 (en) 1998-06-25 1998-06-25 Method and apparatus for measuring the density of a substance having free water compensation

Publications (1)

Publication Number Publication Date
BR9903410A true BR9903410A (pt) 2000-10-03

Family

ID=22301685

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9903410-7A BR9903410A (pt) 1998-06-25 1999-06-22 Método e aparelho para medir a densidade de uma substância tendo compensação de água livre

Country Status (4)

Country Link
US (1) US6225812B1 (pt)
EP (1) EP0967479A3 (pt)
JP (1) JP2000028552A (pt)
BR (1) BR9903410A (pt)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2849201B1 (fr) * 2002-12-18 2005-04-08 Tabacs & Allumettes Ind Porte-echantillon pour la mesure du tirage et de l'humidite d'objets poreux
DE10306217B4 (de) * 2003-02-13 2014-06-26 Rieter Ingolstadt Gmbh Mikrowellenresonator, Textilmaschine mit einem derartigen Resonator sowie Raumeinheit für einen derartigen Resonator
DE10313964A1 (de) * 2003-03-27 2004-10-07 Trützschler GmbH & Co KG Mikrowellen-Messanordnung zur Produktdichtemessung
EP1464273B1 (en) 2003-04-03 2006-11-29 Matsushita Electric Industrial Co., Ltd. Method and device for measuring concentration of specific component
US7373272B2 (en) * 2006-07-26 2008-05-13 Honeywell International, Inc. Temperature compensated resonant transmission line sensor
DE102007039067A1 (de) 2007-08-17 2009-02-19 TRüTZSCHLER GMBH & CO. KG Vorrichtung an einer Kämmmaschine zur Überwachung des Kämmlingsanteils
US9386803B2 (en) * 2010-01-06 2016-07-12 Celanese Acetate Llc Tobacco smoke filter for smoking device with porous mass of active particulate
CN103330283B (zh) 2010-10-15 2016-08-10 塞拉尼斯醋酸纤维有限公司 形成滤烟器用多孔物质的设备、系统和相关方法
CN103890569B (zh) * 2011-08-11 2016-02-10 王子控股株式会社 薄片状基材的涂布层的水分量以及/或者涂布量的测定装置
DE102011083049A1 (de) * 2011-09-20 2013-03-21 Hauni Maschinenbau Ag Mikrowellenstrangmessvorrichtung
DE102011083051A1 (de) * 2011-09-20 2013-03-21 Hauni Maschinenbau Ag Mikrowellenresonatorgehäuse
DE102014211575A1 (de) * 2014-06-17 2015-12-17 Hauni Maschinenbau Ag Mikrowellenmessvorrichtung, Anordnung und Verfahren zur Überprüfung von stabförmigen Artikeln oder eines Materialstrangs der Tabak verarbeitenden Industrie sowie Maschine der Tabak verarbeitenden Industrie

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1106185A (en) * 1964-05-29 1968-03-13 Nils Bertil Agdur Device for measuring a property of a material
US4257001A (en) * 1979-04-13 1981-03-17 John G. Abramo Resonant circuit sensor of multiple properties of objects
JPS63145951A (ja) * 1986-12-09 1988-06-18 Daipoole:Kk 糸状材料の物性量測定装置
JPS63210757A (ja) * 1987-02-27 1988-09-01 Nippon Glass Fiber Co Ltd 非電導性繊維中の導電性物質を検出する為の装置及び方法
DE4004119A1 (de) * 1990-02-10 1991-08-14 Tews Elektronik Dipl Ing Manfr Verfahren zur messung der feuchte eines messgutes mit hilfe von mikrowellen und vorrichtung zur durchfuehrung des verfahrens
DE4211362C2 (de) * 1992-04-04 1995-04-20 Berthold Lab Prof Dr Vorrichtung zur Bestimmung von Materialparametern durch Mikrowellenmessungen
DE4342505C1 (de) * 1993-12-08 1995-04-27 Stange Gerd Verfahren und Vorrichtung zur Messung der Dielektrizitätskonstante von Probenmaterialien
US5736864A (en) * 1995-07-14 1998-04-07 Hauni Maschinenbau Ag Apparatus for ascertaining the complex dielectric constant of tobacco
US5648038A (en) * 1995-09-20 1997-07-15 Lambda Technologies Systems and methods for monitoring material properties using microwave energy
US5698986A (en) * 1996-02-12 1997-12-16 Allen-Bradley Company, Inc. Cigarette density monitor
DE19705260B4 (de) * 1996-02-20 2008-12-24 Hauni Maschinenbau Ag Anordnung zum Erfassen mindestens einer dielektrischen Eigenschaft eines Stoffes
DE29711571U1 (de) * 1997-07-02 1998-11-05 Tews Elektronik Dipl.-Ing. Manfred Tews, 22459 Hamburg Feuchte- und Dichtesensor

Also Published As

Publication number Publication date
US6225812B1 (en) 2001-05-01
JP2000028552A (ja) 2000-01-28
EP0967479A3 (en) 2002-11-27
EP0967479A2 (en) 1999-12-29

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Legal Events

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B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

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B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1910 DE 14/08/2007.