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Measurement of temperature profiles of chemical waves by thermocolor imaging

✍ Scribed by Istvan P. Nagy; John A. Pojma

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
851 KB
Volume
200
Category
Article
ISSN
0009-2614

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✦ Synopsis

A new method is presented for the measurement of the temperature profile of chemical waves propagating through a solution.

Using solutions of thermocolor materials, the temperature distribution caused by the heat released in the propagating chemical reaction front is visualized and recorded using digital image processing methods. After a calibration, the temperature gradient can be calculated from the gray scale value in a digitized image. The method was applied to the fronts in the chlorate oxidation of sulfite. Temperature measurements in the 25-44 "C range were made with 2S"C resolution and in the 44-90Β°C range with 05Β°C

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