Loading...
Journal Title
Measurement Science and Technology
2 results
Filters
Settings
Now showing 1 - 2 of 2
- Some of the metrics are blocked by yourconsent settings
Item type:Publication, Results of round robin form measurements of optical aspheres and freeform surfaces(IOP Publishing, 2024-05); ; ; ; journal articleBand:35Heft:0838 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Revealing the impact of laser-induced breakdown on a gas flow(IOP Publishing, 2019-11-15); ; ; Laser-induced breakdown spectroscopy (LIBS) is an optical, and thus non-contact, but not non-invasive, measurement technique. Investigating the impact of laser-induced breakdown on a gas flow, combined LIBS and particle image velocimetry (PIV) measurements are performed. In the considered laminar air flow, the induced velocity field disturbance has an extent of about 0.7 cm with magnitudes up to 0.9 ms−1. As a further result, the combination of LIBS with other measurement techniques or high-speed LIBS measurements are found to require a minimal time delay of about 500 s in order to ensure influence of the preceding LIBS pulse on the considered gas flow of about 10 % relative velocity deviation. For a reduction to 0 % relative velocity deviation a time delay of about 20 ms is estimated for the investigated flow. Smaller time delays may occur in turbulent flows or flows with higher velocities.journal articleBand:31Heft:2109 113