A compact Scheimpflug lidar imaging instrument for industrial diagnostics of flames

• Scheimpflug lidar is a compact alternative to traditional lidar setups. With Scheimpflug lidar it is possible to make continuous range-resolved measurements. In this study we investigate the feasibility of a Scheimpflug lidar instrument for remote sensing in pool flames, which are characterized by strong particle scattering, large temperature gradients, and substantial fluctuations in particle distribution due to turbulence. An extinction coefficient can be extracted using the information about the transmitted laser power and the spatial extent of the flame. The transmitted laser power is manifested by the intensity of the ‘echo’ from a hard-target termination of the beam located behind the flame, while the information of the spatial extent of the flame along the laser beam is provided by the range-resolved scattering signal. Measurements were performed in heptane and diesel flames, respectively. © 2023 The Author(s). 

Ämnesord

NATURVETENSKAP  -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)

Nyckelord

combustion

lidar

real-time monitoring

Laser beams

Remote sensing

Extinction coefficients

Imaging instruments

Laser power

Particle scattering

Particles distribution

Pool flames

Real time monitoring

Remote-sensing

Scheimpflug

Spatial extent

Optical radar

Byggkonstruktion

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)