Thermal imaging measurement of lateral diffusivity and non-invasive material defect detection

Title: Thermal imaging measurement of lateral diffusivity and non-invasive material defect detection

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Abstract

A system and method for determining lateral thermal diffusivity of a material sample using a heat pulse; a sample oriented within an orthogonal coordinate system; an infrared camera; and a computer that has a digital frame grabber, and data acquisition and processing software. The mathematical model used within the data processing software is capable of determining the lateral thermal diffusivity of a sample of finite boundaries. The system and method may also be used as a nondestructive method for detecting and locating cracks within the material sample.

Inventors:

Sun, Jiangang ^[1]; Deemer, Chris ^[2]

(Westmont, IL)
(Downers Grove, IL)

Issue Date:: 2003-01-01

Research Org.:: Argonne National Laboratory (ANL), Argonne, IL

OSTI Identifier:: 875031

Patent Number(s):: 6517238

Assignee:: The United States of America as represented by the United States Department (Washington, DC) ANL

DOE Contract Number:: W-31109-ENG-38

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: thermal; imaging; measurement; lateral; diffusivity; non-invasive; material; defect; detection; method; determining; sample; heat; pulse; oriented; orthogonal; coordinate; infrared; camera; computer; digital; frame; grabber; data; acquisition; processing; software; mathematical; model; capable; finite; boundaries; nondestructive; detecting; locating; cracks; mathematical model; thermal imaging; /374/250/702/

Citation Formats


                    Sun, Jiangang, and Deemer, Chris. Thermal imaging measurement of lateral diffusivity and non-invasive material defect detection.  United States: N. p., 2003. 
        Web.

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                    Sun, Jiangang, & Deemer, Chris. Thermal imaging measurement of lateral diffusivity and non-invasive material defect detection.  United States.

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                    Sun, Jiangang, and Deemer, Chris. Wed .  
        "Thermal imaging measurement of lateral diffusivity and non-invasive material defect detection".  United States.  https://www.osti.gov/servlets/purl/875031.

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@article{osti_875031,

  title        = {Thermal imaging measurement of lateral diffusivity and non-invasive material defect detection},

  author       = {Sun, Jiangang and Deemer, Chris},

  abstractNote = {A system and method for determining lateral thermal diffusivity of a material sample using a heat pulse; a sample oriented within an orthogonal coordinate system; an infrared camera; and a computer that has a digital frame grabber, and data acquisition and processing software. The mathematical model used within the data processing software is capable of determining the lateral thermal diffusivity of a sample of finite boundaries. The system and method may also be used as a nondestructive method for detecting and locating cracks within the material sample.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2003},

  month        = {1}

}

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