Determining the Threshold of Detection of a Minimal Specific Weight of Particles in the Study of Shock-Wave Dusting of Surfaces of Materials
A. V. Fedorov, A. L. Mikhailov, S. A. Finyushin, D. A. Kalashnikov, E. A. Chudakov, E. I. Butusov, I. S. Gnutov
All-Russian Scientific Research Institute of Experimental Physics, Sarov, 607190 Russia
Keywords: ударно-волновое пыление, гетеродин-интерферометр, спектр скоростей частиц, удельная масса, shock-wave dusting, heterodyne interferometer, particle velocity spectrum, specific weight
Abstract
Particles are discharged from surfaces of materials under a shock-wave load. Experimental results on determining the minimal values of a specific weight of particles with which their velocity can be detected using a heterodyne interferometer (PDV method) are presented. An effect of multiple frequency shift of a Doppler signal in the case of laser radiation being reflected from surfaces of materials and a semitransparent layer of dust particles is described.
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