Photon Doppler velocimetry
||This article provides insufficient context for those unfamiliar with the subject. (January 2013)|
Photon Doppler velocimetry (PDV) is a one-dimensional Fourier transform analysis of a heterodyne laser interferometry. It was developed at Lawrence Livermore National Laboratory by Strand.  In recent years PDV has achieved popularity in the shock physics community as an adjunct or replacement for VISAR[disambiguation needed] in the instrumentation of high-strain-rate events. Contemporary data acquisition technology and off-the-shelf optical telecommunications devices now leverage the assembly of these systems within reasonable budgets.