WO1998054570A1 - Instrument de mesure de la temperature et de la conductibilite electrique en fonction de la profondeur d'enfoncement pour les plantes et le bois - Google Patents

Instrument de mesure de la temperature et de la conductibilite electrique en fonction de la profondeur d'enfoncement pour les plantes et le bois Download PDF

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Publication number
WO1998054570A1
WO1998054570A1 PCT/DE1997/001072 DE9701072W WO9854570A1 WO 1998054570 A1 WO1998054570 A1 WO 1998054570A1 DE 9701072 W DE9701072 W DE 9701072W WO 9854570 A1 WO9854570 A1 WO 9854570A1
Authority
WO
WIPO (PCT)
Prior art keywords
measuring
depth
measuring tip
wood
means according
Prior art date
Application number
PCT/DE1997/001072
Other languages
German (de)
English (en)
Inventor
Katrin A. Joos
Erich Hunger
Original Assignee
Iml - Instrumente Mechanik Labor Gmbh
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 Iml - Instrumente Mechanik Labor Gmbh filed Critical Iml - Instrumente Mechanik Labor Gmbh
Priority to PCT/DE1997/001072 priority Critical patent/WO1998054570A1/fr
Publication of WO1998054570A1 publication Critical patent/WO1998054570A1/fr

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Classifications

    • 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
    • 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
    • G01N27/041—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body
    • 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
    • G01N27/045—Circuits
    • G01N27/046—Circuits provided with temperature compensation

Definitions

  • Measuring device for measuring the temperature and electrical conductivity depending on the penetration depth in plants and wood
  • a device which, taking into account the temperature and the measuring position, serves to measure the electrical conductivity in a test specimen.
  • the device described here is particularly characterized by the following points:
  • the device simultaneously measures the electrical conductivity and temperature of the test specimen as well as the position of the measuring point in the test specimen.
  • the measurement takes place within a few millimeters in a very limited space, which results in great accuracy and high spatial resolution.
  • a measurement process comprises several measurements at different penetration depths in the test specimen, which results in a measurement profile along an axis.
  • the material destruction in the test specimen is minimal.
  • the device does not need to be permanently attached to the test specimen using straps or other aids.
  • the measuring part of the device can be inserted into the test specimen without the use of additional aids such as drilling equipment.
  • the device can be operated by one person.
  • the device described consists of a specially shaped measuring tip 1), in which there is a temperature sensor 2) and two electrodes 3) and 4).
  • the special shape 13) of the measuring tip 1) and the measuring head support 6) enable the device to be inserted into the test specimen with extremely little damage. Due to the small distance between the electrodes 3) and 4), which are embedded in an insulating socket 5) together with the temperature sensor, a very precise and selective high-resolution measurement of the varying electrical conductivity and temperature in the test specimen is possible.
  • the measuring head carrier is connected to a striking device consisting of striking head 10), striking head guide 11) and stop 12) which enables the measuring tip 1) to be inserted and removed in and out of the test specimen. The exact position of the measuring tip 1) is registered via a depth sensor 7).
  • the measured values are recorded in an electronic device 8) which is attached directly to the measuring head carrier 6) or is connected to it by means of a cable.
  • the recorded values are shown directly on a display or stored in a memory from where they can be output to another electronic memory or a printer.
  • the advantage of this invention is that the electrical conductivity is measured taking into account the temperature and the measuring position in the test specimen.
  • the former is essential for meaningful measurement data due to the physical laws; the latter allows the exact spatial assignment of the measurement data in the test specimen. This allows the electrical conductivities to be determined independently of the temperature influence in their spatial distribution in the test specimen.
  • the application of the described device lies primarily in the examination of standing trees.

Landscapes

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

Abstract

L'invention concerne un instrument de mesure de la conductibilité électrique dans un échantillon, par exemple une plante, un arbre, un matériau dérivé du bois ou du bois massif, avec prise en compte de la température et de la profondeur d'enfoncement dans le matériau. Cet instrument est constitué d'un bec de mesure (1) contenant un détecteur de température (2) et deux électrodes (3, 4). Un détecteur de profondeur (7) génère un signal correspondant à la profondeur d'enfoncement dans l'échantillon.
PCT/DE1997/001072 1997-05-27 1997-05-27 Instrument de mesure de la temperature et de la conductibilite electrique en fonction de la profondeur d'enfoncement pour les plantes et le bois WO1998054570A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/DE1997/001072 WO1998054570A1 (fr) 1997-05-27 1997-05-27 Instrument de mesure de la temperature et de la conductibilite electrique en fonction de la profondeur d'enfoncement pour les plantes et le bois

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE1997/001072 WO1998054570A1 (fr) 1997-05-27 1997-05-27 Instrument de mesure de la temperature et de la conductibilite electrique en fonction de la profondeur d'enfoncement pour les plantes et le bois

Publications (1)

Publication Number Publication Date
WO1998054570A1 true WO1998054570A1 (fr) 1998-12-03

Family

ID=6918494

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1997/001072 WO1998054570A1 (fr) 1997-05-27 1997-05-27 Instrument de mesure de la temperature et de la conductibilite electrique en fonction de la profondeur d'enfoncement pour les plantes et le bois

Country Status (1)

Country Link
WO (1) WO1998054570A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009013069A1 (de) 2008-08-13 2010-02-18 Iml Instrumenta Mechanik Labor Gmbh Verfahren und Vorrichtung zur Beschaffenheitsuntersuchung von säulenförmigen oder zylindrischen Abschnitten von Körpern
US20130104634A1 (en) * 2010-04-23 2013-05-02 Iml-Instrumenta Mechanik Labor Gmbh Manual Testing Instrument and Manual Testing Method for Examining the Condition of Wood

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3500187A (en) * 1969-03-20 1970-03-10 Bethlehem Steel Corp Probe for apparatus making temperature compensated resistance measurements of a moving bed of highly abrasive material
DE4004242A1 (de) * 1990-02-12 1991-08-14 Thorwald Dipl Ing Kipp Verfahren und vorrichtung zum pruefen von holzquerschnitten
DE4122494A1 (de) * 1990-09-03 1992-03-05 Frank Dipl Phys Rinn Vorrichtung zur materialpruefung, insbesondere holzpruefung durch bohr- bzw. eindringwiderstandsmessung
NL9101010A (nl) * 1991-06-11 1993-01-04 Window Care Bv Materiaalconditiemeter.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3500187A (en) * 1969-03-20 1970-03-10 Bethlehem Steel Corp Probe for apparatus making temperature compensated resistance measurements of a moving bed of highly abrasive material
DE4004242A1 (de) * 1990-02-12 1991-08-14 Thorwald Dipl Ing Kipp Verfahren und vorrichtung zum pruefen von holzquerschnitten
DE4122494A1 (de) * 1990-09-03 1992-03-05 Frank Dipl Phys Rinn Vorrichtung zur materialpruefung, insbesondere holzpruefung durch bohr- bzw. eindringwiderstandsmessung
NL9101010A (nl) * 1991-06-11 1993-01-04 Window Care Bv Materiaalconditiemeter.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009013069A1 (de) 2008-08-13 2010-02-18 Iml Instrumenta Mechanik Labor Gmbh Verfahren und Vorrichtung zur Beschaffenheitsuntersuchung von säulenförmigen oder zylindrischen Abschnitten von Körpern
DE102009013069B4 (de) * 2008-08-13 2010-10-21 Iml Instrumenta Mechanik Labor Gmbh Verfahren und Vorrichtung zur Beschaffenheitsuntersuchung von säulenförmigen oder zylindrischen Abschnitten von Körpern
US20130104634A1 (en) * 2010-04-23 2013-05-02 Iml-Instrumenta Mechanik Labor Gmbh Manual Testing Instrument and Manual Testing Method for Examining the Condition of Wood
US10928377B2 (en) * 2010-04-23 2021-02-23 Iml-Instrumenta Mechanik Labor Gmbh Manual testing instrument and manual testing method for examining the condition of wood

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