FI84402C - Foerfarande och anordning foer bestaemning av fukthalt i materialet. - Google Patents

Foerfarande och anordning foer bestaemning av fukthalt i materialet. Download PDF

Info

Publication number: FI84402C
Authority: FI; Finland
Prior art keywords: signal; measured; frequency; microwave; moisture content
Prior art date: 1989-01-13

Application number

FI890201A

Other languages

English (en)

Finnish (fi)

Swedish (sv)

Other versions

FI890201A7 (fi

FI84402B (fi

FI890201A0 (fi

Inventor

Pekka Jakkula

Esko Tahkola

Original Assignee

Kajaani Electronics

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.)

1989-01-13

Filing date

1989-01-13

Publication date

1991-11-25

1989-01-13 Application filed by Kajaani Electronics filed Critical Kajaani Electronics

1989-01-13 Priority to FI890201A priority Critical patent/FI84402C/fi

1989-01-13 Publication of FI890201A0 publication Critical patent/FI890201A0/fi

1990-01-08 Priority to CA002007300A priority patent/CA2007300C/fr

1990-01-09 Priority to SE9000065A priority patent/SE505241C2/sv

1990-01-12 Priority to JP2005402A priority patent/JP3026223B2/ja

1990-01-15 Priority to DE4000925A priority patent/DE4000925C2/de

1990-07-14 Publication of FI890201A7 publication Critical patent/FI890201A7/fi

1991-08-15 Application granted granted Critical

1991-08-15 Publication of FI84402B publication Critical patent/FI84402B/fi

1991-11-25 Publication of FI84402C publication Critical patent/FI84402C/fi

1992-03-30 Priority to US07/859,893 priority patent/US5315258A/en

Links

239000000463 material Substances 0.000 title claims description 92
238000000034 method Methods 0.000 title claims description 37
238000005259 measurement Methods 0.000 claims description 26
239000004020 conductor Substances 0.000 claims description 15
238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 claims description 9
239000002023 wood Substances 0.000 claims description 8
230000005540 biological transmission Effects 0.000 claims description 6
238000007620 mathematical function Methods 0.000 claims description 4
239000007900 aqueous suspension Substances 0.000 claims description 3
230000010355 oscillation Effects 0.000 claims description 3
229920001131 Pulp (paper) Polymers 0.000 claims description 2
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
238000010586 diagram Methods 0.000 description 2
238000005516 engineering process Methods 0.000 description 2
239000012212 insulator Substances 0.000 description 2
239000000126 substance Substances 0.000 description 2
238000004590 computer program Methods 0.000 description 1
238000010924 continuous production Methods 0.000 description 1
230000001934 delay Effects 0.000 description 1
230000003111 delayed effect Effects 0.000 description 1
238000000691 measurement method Methods 0.000 description 1
238000012986 modification Methods 0.000 description 1
230000004048 modification Effects 0.000 description 1
238000001956 neutron scattering Methods 0.000 description 1
238000000643 oven drying Methods 0.000 description 1
230000000737 periodic effect Effects 0.000 description 1
238000004886 process control Methods 0.000 description 1
230000005855 radiation Effects 0.000 description 1
238000004064 recycling Methods 0.000 description 1

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)
Biochemistry (AREA)
General Physics & Mathematics (AREA)
Life Sciences & Earth Sciences (AREA)
Chemical & Material Sciences (AREA)
Analytical Chemistry (AREA)
Electromagnetism (AREA)
General Health & Medical Sciences (AREA)
Health & Medical Sciences (AREA)
Immunology (AREA)
Pathology (AREA)
Investigating Or Analysing Materials By Optical Means (AREA)
Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Radar Systems Or Details Thereof (AREA)
Geophysics And Detection Of Objects (AREA)

FI890201A 1989-01-13 1989-01-13 Foerfarande och anordning foer bestaemning av fukthalt i materialet. FI84402C (fi)

Priority Applications (6)

Application Number	Priority Date	Filing Date	Title
FI890201A FI84402C (fi)	1989-01-13	1989-01-13	Foerfarande och anordning foer bestaemning av fukthalt i materialet.
CA002007300A CA2007300C (fr)	1989-01-13	1990-01-08	Methode pour determiner la teneur en humidite d'un materiau, et appareil connexe
SE9000065A SE505241C2 (sv)	1989-01-13	1990-01-09	Metod och anordning för bestämning av fuktinnehållet i ett material
JP2005402A JP3026223B2 (ja)	1989-01-13	1990-01-12	材料の水分含有量の測定方法および装置
DE4000925A DE4000925C2 (de)	1989-01-13	1990-01-15	Verfahren und Vorrichtung zur Bestimmung des Wassergehalts von Materialien
US07/859,893 US5315258A (en)	1989-01-13	1992-03-30	Method and apparatus for determining the moisture content of a material

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FI890201		1989-01-13
FI890201A FI84402C (fi)	1989-01-13	1989-01-13	Foerfarande och anordning foer bestaemning av fukthalt i materialet.

Publications (4)

Publication Number	Publication Date
FI890201A0 FI890201A0 (fi)	1989-01-13
FI890201A7 FI890201A7 (fi)	1990-07-14
FI84402B FI84402B (fi)	1991-08-15
FI84402C true FI84402C (fi)	1991-11-25

Family

ID=8527725

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI890201A FI84402C (fi)	1989-01-13	1989-01-13	Foerfarande och anordning foer bestaemning av fukthalt i materialet.

Country Status (5)

Country	Link
JP (1)	JP3026223B2 (fr)
CA (1)	CA2007300C (fr)
DE (1)	DE4000925C2 (fr)
FI (1)	FI84402C (fr)
SE (1)	SE505241C2 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP3160474B2 (ja) *	1994-09-12	2001-04-25	株式会社東芝	マイクロ波濃度計
DE19725305A1 (de) *	1997-06-14	1998-12-17	Micas Elektronik Gmbh U Co Kg	Verfahren und Vorrichtung zur Bestimmung des Feuchtigkeitsgehalts von Gegenständen
FI104447B (fi) *	1998-07-10	2000-01-31	Valmet Automation Inc	Menetelmä ja mittalaite nestemäisen aineen kaasupitoisuuden mittaamiseksi
JP2000111499A (ja)	1998-10-02	2000-04-21	Toshiba Fa Syst Eng Corp	マイクロ波濃度測定装置
US6854322B2 (en) *	2002-06-10	2005-02-15	The Procter & Gamble Company	Directional coupler sensor
US7151380B2 (en)	2004-08-06	2006-12-19	Voith Paper Patent Gmbh	Microwave water weight sensor and process
DE102004058641B4 (de) *	2004-12-01	2007-03-01	Agueeva, Olga, Dr.	Verfahren zur kontinuierlichen oder diskontinuierlichen Bestimmung der Konzentration der enthaltenen Bestandteile in einem Medium mittels Auswertung der das Medium durchdringende Mikrowellen
DE102006052789B3 (de) *	2006-11-09	2008-07-10	Festo Ag & Co	Verfahren und Positionsmessvorrichtung zur Bestimmung einer Position eines Messobjekts
US10247680B2 (en)	2013-06-28	2019-04-02	Sensors & Software Inc.	System and method for measurement of material property using variable reflector
DE102014216466A1 (de) *	2014-08-20	2016-02-25	Bayerische Motoren Werke Aktiengesellschaft	Quantitative Bestimmung des Wassergehalts an Werkstoffen
CN104977312B (zh) *	2015-06-18	2017-10-13	四川莱源科技有限公司	雷达型微波测水仪器的测试方法
DE102017202214B4 (de)	2017-02-13	2019-06-27	Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.	Verfahren und Anordnung zur Messung von Eigenschaften einer Materialbahn

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3851244A (en) *	1973-12-18	1974-11-26	Electronic Ass Of Canada Ltd	Microwave moisture measuring apparatus
NL8100250A (nl) *	1980-03-13	1981-10-01	Halliburton Co	Akoestisch logstelsel met zwaai-energiebron.
DE3150202A1 (de) *	1981-12-18	1983-06-23	Philips Patentverwaltung Gmbh, 2000 Hamburg	Anordnung zur messung der feuchte
JPH0785062B2 (ja) *	1987-06-09	1995-09-13	建設省土木研究所長	電磁波による土の乾燥密度の測定方法

1989
- 1989-01-13 FI FI890201A patent/FI84402C/fi not_active IP Right Cessation
1990
- 1990-01-08 CA CA002007300A patent/CA2007300C/fr not_active Expired - Lifetime
- 1990-01-09 SE SE9000065A patent/SE505241C2/sv not_active IP Right Cessation
- 1990-01-12 JP JP2005402A patent/JP3026223B2/ja not_active Expired - Lifetime
- 1990-01-15 DE DE4000925A patent/DE4000925C2/de not_active Expired - Lifetime

Also Published As

Publication number	Publication date
JP3026223B2 (ja)	2000-03-27
CA2007300C (fr)	2000-09-26
CA2007300A1 (fr)	1990-07-13
DE4000925C2 (de)	1998-01-22
JPH02238348A (ja)	1990-09-20
SE505241C2 (sv)	1997-07-21
FI890201A7 (fi)	1990-07-14
FI84402B (fi)	1991-08-15
SE9000065D0 (sv)	1990-01-09
FI890201A0 (fi)	1989-01-13
DE4000925A1 (de)	1990-07-19
SE9000065L (sv)	1990-07-14

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Legal Events

Date	Code	Title	Description
2004-08-31	FG	Patent granted	Owner name: METSO FIELD SYSTEMS OY
2009-02-17	MA	Patent expired