A New Rapid Method of Determining the Thermal Diffusivity of Materials and Finished Articles

被引：7

作者：

Golovin, D. Yu. ^{[1
]}

Divin, A. G. ^{[2
]}

Samodurov, A. A. ^{[1
]}

Tyurin, A. I. ^{[1
]}

Golovin, Yu. I. ^{[1
,3
]}

机构：

[1] GR Derzhavin Tambov State Univ, Sci Res Inst Nanotechnol & Nanomat, 33 Int Naya Str, Tambov 392000, Russia

[2] Tambov State Tech Univ, 106 Sovetskaya Str, Tambov 392000, Russia

[3] Moscow MV Lomonosov State Univ, 1 Leninskie Gory, Moscow 119991, Russia

来源：

JOURNAL OF ENGINEERING PHYSICS AND THERMOPHYSICS | 2020年 / 93卷 / 01期

关键词：

point stepwise laser heating; infrared imager; one-sided access; thermal diffusivity; CONDUCTIVITY; THERMOGRAPHY; PRINCIPLES;

D O I：

10.1007/s10891-020-02113-8

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A new nonstationary nondestructive rapid method of determining the thermal diffusivity of materials and finished articles has been suggested and tested experimentally without cutting out samples from them and preparation of the latter. The method is based on using an infrared imager to video record the infrared radiation of the surface originating as a result of its local stepwise heating by, say, a focused laser beam. Subsequent computer processing of the patterns of the nonstationary thermal field by the developed models and algorithms makes it possible to determine the thermal diffusivity of a material or an article in the case of one-sided access to them.

引用

页码：234 / 240

页数：7

共 20 条

[1] Long pulse excitation thermographic non-destructive evaluation [J].

Almond, Darryl P. ;

Angioni, Stefano L. ;

Pickering, Simon G. .

NDT & E INTERNATIONAL, 2017, 87 :7-14

[2]

ASTM, ASTM E1461 13

[3] Infrared thermography for condition monitoring - A review [J].

Bagavathiappan, S. ;

Lahiri, B. B. ;

Saravanan, T. ;

Philip, John ;

Jayakumar, T. .

INFRARED PHYSICS & TECHNOLOGY, 2013, 60 :35-55

[4]

Breitenstein O., 2003, LOCK THERMOGRAPHY BA

[5]

Carslaw HS., 1986, CONDUCTION HEAT SOLI

[6] New Ways of Detecting Cracks, Delaminations, and Other Defects in Materials and Objects via High Frame-Rate Thermal Imaging [J].

Golovin Y.I. ;

Tyurin A.I. ;

Golovin D.Y. ;

Samodurov A.A. .

Bulletin of the Russian Academy of Sciences: Physics, 2018, 82 (09) :1193-1202

[7] Nonstationary Infrared Testing of Coatings on Exterior and Interior Surfaces of Metal Shells [J].

Golovin, Yu. I. ;

Tyurin, A. I. ;

Golovin, D. Yu. ;

Samodurov, A. A. .

TECHNICAL PHYSICS LETTERS, 2017, 43 (12) :1128-1131

[8] Electric Thermal Inspection of Metal Sheets [J].

Golovin, Yu. I. ;

Tyurin, A. I. ;

Golovin, D. Yu. ;

Samodurov, A. A. .

TECHNICAL PHYSICS LETTERS, 2017, 43 (10) :899-901

[9]

Golovin Yu.I., 2018, IND LAB-USSR+, V84, P23, DOI [10.26896/1028-6861-2018-84-6-23-31, DOI 10.26896/1028-6861-2018-84-6-23-31]

[10] Critical Review of Industrial Techniques for Thermal-Conductivity Measurements of Thermal Insulation Materials [J].

Hammerschmidt, Ulf ;

Hameury, Jacques ;

Strnad, Radek ;

Turzo-Andras, Emese ;

Wu, Jiyu .

INTERNATIONAL JOURNAL OF THERMOPHYSICS, 2015, 36 (07) :1530-1544

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