4D temperature measurements using tomographic two-color pyrometry

Yu T, Bauer F, Huber F, Will S, Cai W (2021)

Publication Language: English

Publication Type: Journal article, Review article

Publication year: 2021

Journal

Book Volume: 29

Pages Range: 5304-5315

Journal Issue: 4

DOI: 10.1364/OE.412821

Abstract

This work presents a new approach for high-speed four-dimensional (3D+t) thermometry using only two high-speed cameras which are equipped with different band pass filters to capture thermal radiation signals at two narrow wavelength bands. With the help of a customized fiber bundle and a beam splitter, a total number of nine projections at each band were recorded, and the temperature distribution was evaluated by tomographic two-color pyrometry. In order to validate the effectiveness of this method, the 3D temperature distribution of a premixed steady flat flame was evaluated. The determined temperatures were compared to those of other studies, as well as to the results from inverse Abel transform and line-of-sight data. Further, the 3D temperature evolution of a weakly turbulent diffusion flame was observed at a repetition rate of 7.5 kHz. Such 4D temperature measurements are expected to be valuable in understanding turbulent combustion mechanisms especially of practical devices.

Authors with CRIS profile

Involved external institutions

Shanghai Jiao Tong University / 上海交通大学 China (CN)

How to cite

APA:

Yu, T., Bauer, F., Huber, F., Will, S., & Cai, W. (2021). 4D temperature measurements using tomographic two-color pyrometry. Optics Express, 29(4), 5304-5315. https://dx.doi.org/10.1364/OE.412821

MLA:

Yu, Tao, et al. "4D temperature measurements using tomographic two-color pyrometry." Optics Express 29.4 (2021): 5304-5315.

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