Research on laser velocimetry technology under strong infrared radiation background

Xiaofeng Li

doi:10.1117/12.2651673

10 May 2023 Research on laser velocimetry technology under strong infrared radiation background

Xiaofeng Li

Proceedings Volume 12554, AOPC 2022: Advanced Laser Technology and Applications; 125540W (2023) https://doi.org/10.1117/12.2651673
Event: Applied Optics and Photonics China 2022 (AOPC2022), 2022, Beijing, China

Abstract

Laser Doppler velocimetry system is very important in the production and application of high temperature target velocity measurement without contact. In order to quickly and accurately select the wavelength of laser velocimetry system in high temperature environment and effectively improve the signal-to-noise ratio. In this paper, a new scattering model and thermal radiation power calculation method are presented to simulate the signal power and thermal radiation power in the process of velocity measurement. The accuracy of the model is verified by experiments, and the error is within 3%. In addition, according to the SNR formula, the system parameters can be adjusted to make the velocity measurement system with 1550 nm wavelength also feasible under the background of strong infrared radiation, which has important guiding significance for the design of the velocity measurement system for high temperature targets.

Citation Download Citation

Xiaofeng Li "Research on laser velocimetry technology under strong infrared radiation background", Proc. SPIE 12554, AOPC 2022: Advanced Laser Technology and Applications, 125540W (10 May 2023); https://doi.org/10.1117/12.2651673

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