Method for thermal tomography of thermal effusivity from pulsed thermal imaging

Sun, Jiangang

Title: Method for thermal tomography of thermal effusivity from pulsed thermal imaging

Abstract

A computer-implemented method for automated thermal computed tomography includes providing an input of heat, for example, with a flash lamp, onto the surface of a sample. The amount of heat and the temperature rise necessary are dependent on the thermal conductivity and the thickness of the sample being inspected. An infrared camera takes a rapid series of thermal images of the surface of the article, at a selected rate, which can vary from 100 to 2000 frames per second. Each infrared frame tracks the thermal energy as it passes from the surface through the material. Once the infrared data is collected, a data acquisition and control computer processes the collected infrared data to form a three-dimensional (3D) thermal effusivity image.

Inventors:: Sun, Jiangang

Issue Date:: 2008-04-29

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1531553

Patent Number(s):: 7365330

Application Number:: 11/522,757

Assignee:: UChicago Argonne, LLC (Chicago, IL)

Patent Classifications (CPCs):: A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61B - DIAGNOSIS

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

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A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61B - DIAGNOSIS
A61B5/015 - {By temperature mapping of body part}

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N25/72 - Investigating presence of flaws

G - PHYSICS G01 - MEASURING G01J - MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT
G01J5/0003 - {for sensing the radiant heat transfer of samples, e.g. emittance meter}
G01J2005/0077 - {Imaging}

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DOE Contract Number:: W-31-109-ENG-38

Resource Type:: Patent

Resource Relation:: Patent File Date: 2006-09-18

Country of Publication:: United States

Language:: English

Subject:: 47 OTHER INSTRUMENTATION; 97 MATHEMATICS AND COMPUTING; 36 MATERIALS SCIENCE

Citation Formats


                    Sun, Jiangang. Method for thermal tomography of thermal effusivity from pulsed thermal imaging.  United States: N. p., 2008. 
        Web.

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                    Sun, Jiangang. Method for thermal tomography of thermal effusivity from pulsed thermal imaging.  United States.

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                    Sun, Jiangang. Tue .  
        "Method for thermal tomography of thermal effusivity from pulsed thermal imaging".  United States.  https://www.osti.gov/servlets/purl/1531553.

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@article{osti_1531553,

  title        = {Method for thermal tomography of thermal effusivity from pulsed thermal imaging},

  author       = {Sun, Jiangang},

  abstractNote = {A computer-implemented method for automated thermal computed tomography includes providing an input of heat, for example, with a flash lamp, onto the surface of a sample. The amount of heat and the temperature rise necessary are dependent on the thermal conductivity and the thickness of the sample being inspected. An infrared camera takes a rapid series of thermal images of the surface of the article, at a selected rate, which can vary from 100 to 2000 frames per second. Each infrared frame tracks the thermal energy as it passes from the surface through the material. Once the infrared data is collected, a data acquisition and control computer processes the collected infrared data to form a three-dimensional (3D) thermal effusivity image.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2008},

  month        = {4}

}

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Title: Method for thermal tomography of thermal effusivity from pulsed thermal imaging

Abstract

Citation Formats

Synthetic reference thermal imaging method patent, April 2002

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Thermographic inspection techniques patent, July 2016

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Method for turbine component qualification patent, October 2018

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