Simultaneous measurement of temperature and absorption of distributed medium by using infrared emission CT

Author

Ito, Tadashi ; Fujimura, Sadao

Author_Institution

Dept. of Math. Eng. & Inf. Phys., Tokyo Univ., Japan

Volume

44

Issue

3

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

799

Lastpage

802

Abstract

To get accurate temperature distribution of the medium, the absorption of the medium must be known. We achieve this by obtaining the projections of thermal radiation from the medium and an external radiator whose temperature is switched from one to another while obtaining projections. We can reconstruct the distributions from the projections by using an emission CT algorithm. We performed an experiment to simultaneously measure the temperature and the absorption distribution of the flame of a Bunsen burner. The results agreed well with the real temperature profile of the cross section of the flame

Keywords

emission tomography; flames; heat radiation; high-temperature techniques; image processing; infrared imaging; temperature distribution; temperature measurement; Bunsen burner; absorption measurement; cross section; distributed medium; emission CT algorithm; flame; infrared emission CT; projections; real temperature profile; simultaneous measurement; temperature measurement; thermal radiation; Computed tomography; Electromagnetic wave absorption; Equations; Fires; Optical scattering; Radiometry; Temperature dependence; Temperature distribution; Temperature measurement; Temperature sensors;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.387336

Filename

387336