[PDF][PDF] 可调谐二极管激光吸收光谱技术的应用研究进展

聂伟, 阚瑞峰, 杨晨光, 陈兵, 许振宇… - Chinese Journal of …, 2018 - researching.cn
摘要随着半导体激光器的发展, 可调谐二极管激光吸收光谱(TDLAS) 技术有了巨大的进步,
应用领域迅速扩大. 已经有超过1000 种TDLAS 仪器应用于连续排放监测以及工业过程控制等 …

Characterization of tracers for two-color laser-induced fluorescence liquid-phase temperature imaging in sprays

MM Prenting, MI Bin Dzulfida, T Dreier, C Schulz - Experiments in Fluids, 2020 - Springer
The variation of the fluorescence spectral signature of tracer solutions with temperature
enables temperature imaging measurements in liquids and sprays by simultaneously …

Water-film thickness imaging based on time-multiplexed near-infrared absorption with up to 500 Hz repetition rate

M Lubnow, T Dreier, C Schulz, T Endres - Applied Optics, 2023 - opg.optica.org
We demonstrate high-repetition-rate imaging of the liquid-film thickness in the 50–1000 µm
range resulting from impinging water droplets on a glass surface. The pixel-by-pixel ratio of …

Water film thickness imaging based on time-multiplexed near-infrared absorption

M Lubnow, JB Jeffries, T Dreier, C Schulz - Optics express, 2018 - opg.optica.org
We demonstrate the imaging of the thickness of liquid water thin films in the 100–1500 µm
range at a constant temperature by monitoring the pixel-by-pixel ratio of absorbance at two …

Rapid, optical measurement of the atmospheric pressure on a fast research aircraft using open-path TDLAS

B Buchholz, A Afchine, V Ebert - Atmospheric measurement …, 2014 - amt.copernicus.org
Because of the high travel speed, the complex flow dynamics around an aircraft, and the
complex dependency of the fluid dynamics on numerous airborne parameters, it is quite …

Measurement of liquid water film thickness on opaque surface with diode laser absorption spectroscopy

H Yang, W Wei, M Su, J Chen, X Cai - Flow Measurement and …, 2018 - Elsevier
Liquid film is usually formed on opaque surfaces in various industrial processes, and the
investigation of liquid film is very important for understanding and optimization of the …

Measurements of liquid film thickness, concentration, and temperature of aqueous urea solution by NIR absorption spectroscopy

R Pan, JB Jeffries, T Dreier, C Schulz - Applied Physics B, 2016 - Springer
A multi-wavelength near-infrared (NIR) diode laser absorption sensor has been developed
and demonstrated for real-time monitoring of the thickness, solute concentration, and …

Two-dimensional mapping of falling water film thickness with near-infrared attenuation

J Dupont, G Mignot, HM Prasser - Experiments in Fluids, 2015 - Springer
We have developed an optical technique for the two-dimensional mapping of water film
thickness. The technique is based on infrared light absorption. A near-infrared camera is …

Measurements of liquid film thickness, concentration and temperature of aqueous NaCl solution by NIR absorption spectroscopy

R Pan, JB Jeffries, T Dreier, C Schulz - Applied Physics B, 2015 - Springer
A multi-wavelength diode laser absorption sensor was investigated for real-time monitoring
of the thickness, solute concentration and temperature of thin films of liquid solutions, and …

A multispectral UV–vis absorption technique for quantitative high-speed field-sequential imaging of fuel films and soot in combustion

K Shway, N Jüngst, M Bardi, G Bruneaux… - Proceedings of the …, 2023 - Elsevier
Non-evaporated liquid fuel films are the main cause of soot formation in gasoline direct-
injection engines. In this study, a UV–vis absorption technique was developed to image the …