Optical Measurement Techniques
Optical measurement techniques in energy process research offer non-invasive, highly accurate measurements of parameters like temperature, pressure, and concentration gradients. They provide real-time data, enabling dynamic process observation. We invite you to explore the possibilities of integrating optical methods into your research to enhance precision and efficiency.
01
Schlieren Imaging
Schlieren images allow you to see the faintest gradients in optical density, visualizing mixing effects in gases, shockwaves, and temperatures.
02
DBIEI - Advanced Shadowgraphy
The diffused backlight illumination extinction imaging (DBIEI) technique is an advanced form of shadowgraph imaging that allows for quantitative interpretation of shadow depth. The resulting optical density can be analyzed further, e.g. using scattering theory on droplets to obtain quantitative droplet evaporation data, which can be directly compared to CFD results. This measurement technique is the standard in the ECN spray research community
03
Raman Scattering in gases
The Raman scattering technique is a powerful method for analyzing gases, allowing for the quantitative interpretation of molecular vibrations and rotations. By measuring the inelastic scattering of light, this technique provides detailed information about the molecular composition and dynamics of gases. The resulting spectral data can be further analyzed to obtain quantitative information on gas concentrations, temperatures, and pressures, which can be directly compared to CFD results. Raman scattering is widely used in various fields, including environmental monitoring, combustion research, and chemical analysis.
04
Laser Fluoresence Imaging
Laser fluorescence imaging is a versatile technique for visualizing fluid dynamics, where either the fluid itself is fluorescent or minimal amounts of tracer are added. By exciting the fluorescent molecules with laser light, this method allows for the detailed observation of flow patterns, mixing effects, and concentration gradients. The main benefit of this technique is that it separates the species, fluid, or processes under investigation from the rest, providing clear and precise information in complex environments.
