Abstract

Instantaneous single-shot temperatures measured using the thermally assisted fluorescence (THAF) technique are reported for three C<sub>2</sub>H<sub>2</sub>/O<sub>2</sub>/Ar flames which range in temperature from 2200 K to 2465 K. The temperature precision of 100 single-shot THAF measurements ranges, in general, from 10 K to 60 K. Comparison with averaged THAF temperature measurements and reversal temperature values indicates the high accuracy and precision obtainable with single-shot THAF and its potential for use as a thermometric method for laboratory and turbulent flames.

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