FI127963B - Förfarande för att bestämma egenskaper och skador i ved vid genomskärning av ett träd - Google Patents

Förfarande för att bestämma egenskaper och skador i ved vid genomskärning av ett träd Download PDF

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Publication number
FI127963B
FI127963B FI20150296A FI20150296A FI127963B FI 127963 B FI127963 B FI 127963B FI 20150296 A FI20150296 A FI 20150296A FI 20150296 A FI20150296 A FI 20150296A FI 127963 B FI127963 B FI 127963B
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FI
Finland
Prior art keywords
wood
properties
electrodes
measurement
tree
Prior art date
Application number
FI20150296A
Other languages
English (en)
Finnish (fi)
Other versions
FI20150296A (sv
Inventor
Markku Tiitta
Original Assignee
Puumit 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
Application filed by Puumit Oy filed Critical Puumit Oy
Priority to FI20150296A priority Critical patent/FI127963B/sv
Priority to PCT/FI2016/050736 priority patent/WO2017072404A1/en
Publication of FI20150296A publication Critical patent/FI20150296A/sv
Application granted granted Critical
Publication of FI127963B publication Critical patent/FI127963B/sv

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/048—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance for determining moisture content of the material
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G23/00—Forestry
    • A01G23/02—Transplanting, uprooting, felling or delimbing trees
    • A01G23/08—Felling trees
    • A01G23/091—Sawing apparatus specially adapted for felling trees
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G23/00—Forestry
    • A01G23/02—Transplanting, uprooting, felling or delimbing trees
    • A01G23/08—Felling trees
    • A01G23/087—Shearing apparatus or the like specially adapted for felling trees
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B1/00—Methods for subdividing trunks or logs essentially involving sawing
    • B27B1/002—Methods for subdividing trunks or logs essentially involving sawing by cross-cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • 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

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Forests & Forestry (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Wood Science & Technology (AREA)
  • Electrochemistry (AREA)
  • Ecology (AREA)
  • Environmental Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

Uppfinningen avser ett förfarande för att bestämma egenskaper och skador i ved (2) vid genomskärning av ett träd. Förfarandet går ut På att med hjälp av elektroder (1) skapa ett dynamiskt elektriskt fält i veden, att mäta komplex impedans På minst två olika frekvenser och att bestämma egenskaper och skador i vedmaterialet som finns inom det med elektroderna skapade effektiva elektriska fältet.

Claims (3)

  1. Patentkrav:
    1. Förfarande för att bestämma egenskaper och skador i ved (2) vid genomskäming av ett träd, kännetecknat av att det med hjälp av en eller
    5 flera elektroder (1) i en fläns och/eller i en genomskärande klinga (3) skapas ett dynamiskt elektriskt fält i veden, mäts komplex impedans pä minst tvä olika frekvenser och bestäms egenskaper och skador i det vedmaterial som finns inom det elektriska fältet.
  2. 2. Förfarande enligt patentkrav 1, kännetecknat av att ett elektriskt
    10 impedans spektrum mäts.
  3. 3. Förfarande enligt nägot av patentkraven 1-2, kännetecknat av att det elektriska fältet mäts i flera mätpunkter.
FI20150296A 2015-10-26 2015-10-26 Förfarande för att bestämma egenskaper och skador i ved vid genomskärning av ett träd FI127963B (sv)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI20150296A FI127963B (sv) 2015-10-26 2015-10-26 Förfarande för att bestämma egenskaper och skador i ved vid genomskärning av ett träd
PCT/FI2016/050736 WO2017072404A1 (en) 2015-10-26 2016-10-19 Method for determining properties and defects of wood while cutting it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20150296A FI127963B (sv) 2015-10-26 2015-10-26 Förfarande för att bestämma egenskaper och skador i ved vid genomskärning av ett träd

Publications (2)

Publication Number Publication Date
FI20150296A FI20150296A (sv) 2017-04-27
FI127963B true FI127963B (sv) 2019-06-14

Family

ID=58631330

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20150296A FI127963B (sv) 2015-10-26 2015-10-26 Förfarande för att bestämma egenskaper och skador i ved vid genomskärning av ett träd

Country Status (2)

Country Link
FI (1) FI127963B (sv)
WO (1) WO2017072404A1 (sv)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201800009889A1 (it) * 2018-10-30 2020-04-30 Redcap Tech Srl Sistema di protezione attiva e metodo di azionamento correlato in un attrezzo da taglio portatile
CN115969366A (zh) * 2023-03-05 2023-04-18 北京大学第三医院（北京大学第三临床医学院） 基于近红外吸收光谱-阻抗谱分析联用的血糖测量方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3430357A (en) * 1967-05-17 1969-03-04 Weyerhaeuser Co Method of drying wood and moisture indicator
EP1410050A1 (en) * 2001-06-15 2004-04-21 Mississippi State University Through-log density detector
EP1741529A1 (en) * 2004-03-09 2007-01-10 Josep Gurri Mollins Debarking module which can be connected to a power chain saw and debarking power chain saw
US7997309B2 (en) * 2006-11-30 2011-08-16 Risley Enterprises Ltd. System and method for measuring trees during processing

Also Published As

Publication number Publication date
WO2017072404A1 (en) 2017-05-04
FI20150296A (sv) 2017-04-27

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