JPS52138197A - Observing apparatus for rapid change in reflection or transmission energy by wood in radio frequency range - Google Patents

Observing apparatus for rapid change in reflection or transmission energy by wood in radio frequency range

Info

Publication number
JPS52138197A
JPS52138197A JP3145777A JP3145777A JPS52138197A JP S52138197 A JPS52138197 A JP S52138197A JP 3145777 A JP3145777 A JP 3145777A JP 3145777 A JP3145777 A JP 3145777A JP S52138197 A JPS52138197 A JP S52138197A
Authority
JP
Japan
Prior art keywords
wood
reflection
radio frequency
frequency range
rapid change
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
JP3145777A
Other languages
English (en)
Japanese (ja)
Other versions
JPS628741B2 (enrdf_load_stackoverflow
Inventor
Touiri Marutei
Kinanen Irumari
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.)
INNOTEC Oy
Original Assignee
INNOTEC Oy
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
Priority claimed from FI760753A external-priority patent/FI52406C/fi
Priority claimed from FI762851A external-priority patent/FI53365C/fi
Priority claimed from FI762850A external-priority patent/FI53364C/fi
Application filed by INNOTEC Oy filed Critical INNOTEC Oy
Publication of JPS52138197A publication Critical patent/JPS52138197A/ja
Publication of JPS628741B2 publication Critical patent/JPS628741B2/ja
Granted 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/46—Wood

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Food Science & Technology (AREA)
  • Wood Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Electromagnetism (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
JP3145777A 1976-03-22 1977-03-22 Observing apparatus for rapid change in reflection or transmission energy by wood in radio frequency range Granted JPS52138197A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI760753A FI52406C (fi) 1976-03-22 1976-03-22 Laite puutavarasta heijastuneen tai läpi kulkeneen radiotaajuisen ener gian äkillisen muutoksen havaitsemiseksi
FI762851A FI53365C (fi) 1976-10-06 1976-10-06 Anordning foer utnyttjande av fraon virke reflekterad eller genom detta passerad radiofrekvent energi vid detektering av snedfibrighet i virke
FI762850A FI53364C (fi) 1976-10-06 1976-10-06 Anordning foer iakttagande av ploetslig aendring i fraon virke reflekterad eller genom detta passerad fraon ett antennpar erhaollen radiofrekvent energi

Publications (2)

Publication Number Publication Date
JPS52138197A true JPS52138197A (en) 1977-11-18
JPS628741B2 JPS628741B2 (enrdf_load_stackoverflow) 1987-02-24

Family

ID=27240969

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3145777A Granted JPS52138197A (en) 1976-03-22 1977-03-22 Observing apparatus for rapid change in reflection or transmission energy by wood in radio frequency range

Country Status (3)

Country Link
JP (1) JPS52138197A (enrdf_load_stackoverflow)
DE (1) DE2712600C2 (enrdf_load_stackoverflow)
SE (1) SE418774B (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5886443A (ja) * 1981-11-18 1983-05-24 Agency Of Ind Science & Technol 異方性材料の方向性測定方法
JP2003515130A (ja) * 1999-11-19 2003-04-22 ライノ・アナリティクス・エルエルシー 改善された感度を有するδｌマイクロ波センサ
CN115144438A (zh) * 2022-06-30 2022-10-04 青岛理工大学 一种无线微带贴片天线传感器及在脱粘缺陷检测领域的应用

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI57490C (fi) * 1978-06-01 1980-08-11 Innotec Oy Foerfarande foer bestaemning av snedfibrigheten i virke i synnerhet i saogat virke
LU84308A1 (fr) * 1982-07-29 1984-03-22 Bekaert Sa Nv Systeme pour l'identification d'articles en feuilles par micro-ondes
LU84307A1 (fr) * 1982-07-29 1984-03-22 Bekaert Sa Nv Systeme pour l'identification d'articles en feuilles par micro-ondes
US4514680A (en) * 1983-01-28 1985-04-30 A.Ahlstrom Osakeyhtio Flaw detection system using microwaves
US4659982A (en) * 1984-06-21 1987-04-21 Centre National De La Recherches Scientifique Microwave apparatus and method of operation to determine position and/or speed of a movable body or discontinuity or change in a material
FR2578983B2 (fr) * 1985-03-12 1988-04-01 Centre Nat Rech Scient Perfectionnements au procede de traitement du signal par correlation
AU603456B2 (en) * 1987-06-23 1990-11-15 De Beers Industrial Diamond Division (Proprietary) Limited Sorting method and apparatus
DE10149317B4 (de) * 2001-10-05 2015-02-19 Albert-Ludwigs-Universität Freiburg Vorrichtung zur Messung der dielektrischen Eigenschaften eines Substrats
US7829855B2 (en) * 2006-01-17 2010-11-09 University Of Northern British Columbia Methods and apparatus for determining fibre orientation
DE102011110011B4 (de) * 2011-08-11 2014-05-22 Fagus-Grecon Greten Gmbh & Co. Kg Vorrichtung zum Überprüfen eines Holzwerkstoffes, insbesondere einer Holzwerkstoffplatte in einem fortlaufenden Strang während ihrer Herstellung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE407982B (sv) * 1975-02-14 1979-04-30 Innotec Oy Sett att for klassificering eller sortering av virke undersoka forekomsten av kvistar deri

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5886443A (ja) * 1981-11-18 1983-05-24 Agency Of Ind Science & Technol 異方性材料の方向性測定方法
JP2003515130A (ja) * 1999-11-19 2003-04-22 ライノ・アナリティクス・エルエルシー 改善された感度を有するδｌマイクロ波センサ
CN115144438A (zh) * 2022-06-30 2022-10-04 青岛理工大学 一种无线微带贴片天线传感器及在脱粘缺陷检测领域的应用

Also Published As

Publication number Publication date
SE7703300L (sv) 1977-09-23
SE418774B (sv) 1981-06-22
JPS628741B2 (enrdf_load_stackoverflow) 1987-02-24
DE2712600C2 (de) 1986-06-19
DE2712600A1 (de) 1977-09-29

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