Two images captured sequentially in Dt period, by CCD camera and double-pulse laser in cross-section offlow with seeding particle, were reviewed. The digitalized images were calculated by FFT method, cross correlationand auto-correlation as an impulse function equation, therefore inversed in to time domainr esulting velocity vector maps with known Dt . The computation result can be applied in a large technical application, especially in nuclear application, turbulence and the other phenomena fluiddynamic in reactor chamber which can be calculated providing Laser, CCD camera and remotely computational equipment are available. BPP Teknologi; BPP Teknologi.
