Jacky Bénier
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View article: 532-nm Photonic Doppler Velocimetry
532-nm Photonic Doppler Velocimetry Open
Photonic Doppler Velocimetry (PDV) systems operating at wavelengths shorter than the classical telecom band are of interest for low-velocity measurements and for measuring smaller particles ejected from a material. As velocity resolution i…
View article: Development of a Photonic Doppler Velocimetry Diagnostic Operating at 830 nm
Development of a Photonic Doppler Velocimetry Diagnostic Operating at 830 nm Open
Photonic Doppler Velocimetry, originally developed at 1550 nm, has become over the past decades a standard diagnostic for studying material response to dynamic loading or for studying clouds of ejecta. However, it is known that its velocit…
View article: Recovering particle velocity and size distributions in ejecta with photon Doppler velocimetry
Recovering particle velocity and size distributions in ejecta with photon Doppler velocimetry Open
When a solid metal is struck, its free surface can eject fast and fine particles. Despite the many diagnostics that have been implemented to measure the mass, size, velocity, or temperature of ejecta, these efforts provide only a partial p…
View article: Recovering particle velocity and size distributions in ejecta with Photon Doppler Velocimetry
Recovering particle velocity and size distributions in ejecta with Photon Doppler Velocimetry Open
When a solid metal is struck, its free surface can eject fast and fine particles. Despite the many diagnostics that have been implemented to measure the mass, size, velocity or temperature of ejecta, these efforts provide only a partial pi…
View article: Radiometric Short-Term Fourier Transform analysis of photonic Doppler velocimetry recordings and detectivity limit
Radiometric Short-Term Fourier Transform analysis of photonic Doppler velocimetry recordings and detectivity limit Open
Photonic Doppler Velocimetry is a plug-and-play and versatile diagnostic used in dynamic physic experiments to measure velocities. When signals are analyzed using a Short-Time Fourier Transform, multiple velocities can be distinguished: fo…