SE9901755L - Method for measuring the thermal properties of materials with direction-dependent properties - Google Patents

Method for measuring the thermal properties of materials with direction-dependent properties

Info

Publication number
SE9901755L
SE9901755L SE9901755A SE9901755A SE9901755L SE 9901755 L SE9901755 L SE 9901755L SE 9901755 A SE9901755 A SE 9901755A SE 9901755 A SE9901755 A SE 9901755A SE 9901755 L SE9901755 L SE 9901755L
Authority
SE
Sweden
Prior art keywords
test substance
lambda
thermal properties
layer
function
Prior art date
Application number
SE9901755A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9901755D0 (en
SE516026C2 (en
Inventor
Silas Gustafsson
Mattias Gustavsson
Johan Gustavsson
Original Assignee
Hot Disk Ab
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 Hot Disk Ab filed Critical Hot Disk Ab
Priority to SE9901755A priority Critical patent/SE516026C2/en
Publication of SE9901755D0 publication Critical patent/SE9901755D0/en
Priority to AU49626/00A priority patent/AU4962600A/en
Priority to PCT/SE2000/000868 priority patent/WO2000070333A1/en
Publication of SE9901755L publication Critical patent/SE9901755L/en
Publication of SE516026C2 publication Critical patent/SE516026C2/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/18—Investigating or analyzing materials by the use of thermal means by investigating thermal conductivity
    • 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
    • G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
    • G01N27/18—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by changes in the thermal conductivity of a surrounding material to be tested

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

A method for measuring thermal properties of a test substance of an anisotropic material by means of a device incorporating a thin element (1) or a layer of an electrically conductive material, e.g. metal, in the form of a number ot thin strips (1a) arranged in a circular pattern is brought in heat conductive contact with said test substance, causing a temperature increase in the substance by passing an electric current through said element or layer and recording the voltage variation over the element or the layer as a function of time. The thermal properties of the test substance are assumed to be the same in two orthogonal directions but different in the third orthogonal direction. The thin element (1) is placed in parallel with the two directions of the test substance having substantially the same thermal properties and the experimental results are evaluated by an iteration process utilizing thermal conductivity equation (I), DELTA T is the temperature increase as a function of time, LAMBDA 1 and LAMBDA 3 is the thermal conductivity in the first and third direction respectively of the test substance; at which LAMBDA 1≠ LAMBDA 3; alpha is the radius of the circular element; D( tau 1) is a dimensionless time function.
SE9901755A 1999-05-14 1999-05-14 Method for measuring the thermal properties of materials with direction-dependent properties SE516026C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9901755A SE516026C2 (en) 1999-05-14 1999-05-14 Method for measuring the thermal properties of materials with direction-dependent properties
AU49626/00A AU4962600A (en) 1999-05-14 2000-05-04 Method of measuring thermal properties of materials with direction dependant properties
PCT/SE2000/000868 WO2000070333A1 (en) 1999-05-14 2000-05-04 Method of measuring thermal properties of materials with direction dependant properties

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9901755A SE516026C2 (en) 1999-05-14 1999-05-14 Method for measuring the thermal properties of materials with direction-dependent properties

Publications (3)

Publication Number Publication Date
SE9901755D0 SE9901755D0 (en) 1999-05-14
SE9901755L true SE9901755L (en) 2000-11-15
SE516026C2 SE516026C2 (en) 2001-11-12

Family

ID=20415590

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9901755A SE516026C2 (en) 1999-05-14 1999-05-14 Method for measuring the thermal properties of materials with direction-dependent properties

Country Status (3)

Country Link
AU (1) AU4962600A (en)
SE (1) SE516026C2 (en)
WO (1) WO2000070333A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10146321B4 (en) * 2001-09-20 2008-08-14 Robert Bosch Gmbh Sensor module with a sensor element, which is surrounded by a heating element
US9375246B2 (en) * 2007-01-19 2016-06-28 Covidien Lp System and method of using thermal and electrical conductivity of tissue
RU2403561C1 (en) * 2009-10-21 2010-11-10 Шлюмберже Текнолоджи Б.В. Device for determining thermal properties of solid bodies and device for realising said method
WO2011065877A1 (en) * 2009-11-26 2011-06-03 Hot Disk Ab Measurement of thermal properties
DE102010018968A1 (en) 2010-04-29 2011-11-03 Bundesrepublik Deutschland, vertr. durch d. Bundesministerium f. Wirtschaft und Technologie, dieses vertreten durch d. Präsidenten d. Physikalisch-Technischen Bundesanstalt Method for measuring a thermal transport size and transport size measuring device
EP3234559B1 (en) 2014-12-16 2019-05-22 Oxford University Innovation Limited Detecting composition of a sample based on thermal properties
EP3443334B1 (en) 2016-04-15 2023-01-04 Oxford University Innovation Limited A needle probe for measuring a thermal property
US11371949B1 (en) 2020-08-04 2022-06-28 National Technology & Engineering Solutions Of Sandia, Llc Thermal measurement apparatus and methods for anisotropic thermal materials

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL139300B1 (en) * 1983-04-27 1987-01-31 Pan Ct Badan Molekularnych I M Method of determination of thermal conductivity and heat storage capacity of materials and apparatus therefor
SE461177B (en) * 1988-03-16 1990-01-15 Thermetrol Ab DEVICE FOR Saturation of thermal properties of a test substance
GB9403157D0 (en) * 1994-02-18 1994-04-06 In Her Britannic Majesty S Gov Foodstuff component meter

Also Published As

Publication number Publication date
WO2000070333A1 (en) 2000-11-23
AU4962600A (en) 2000-12-05
SE9901755D0 (en) 1999-05-14
SE516026C2 (en) 2001-11-12

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