METHOD FOR MEASURING VELOCITY OF LARGE-SCALE AND STRATIFIED FLOWS

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to experimental u0433u0438u0434u0440u043eu0434u0438u043du0430u043cu0438u043au0435 and can u043fu0440u0438u043cu0435u043du00a0u0442u044cu0441u00a0 u0434u043bu00a0 u0438u0437u043cu0435u0440u0435u043du0438u00a0 flow velocity. to improve the accuracy of u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 u00a0u0432u043bu00a0u0435u0442u0441u00a0 u0438u0437u043cu0435u0440u0435u043du0438u00a0 by u0443u0432u0435u043bu0438u0447u0435u043du0438u00a0 u043eu0442u043du043eu0448u0435u043du0438u00a0 signal noise.the purpose of u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 u0434u043eu0441u0442u0438u0433u0430u0435u0442u0441u00a0, however, that in some way u0438u0437u043cu0435u0440u0435u043du0438u00a0 speed flows, which u0441u0435u0431u00a0 operation u0438u0437u043bu0443u0447u0435u043du0438u00a0 coherent light radiation u0438u0441u0441u043bu0435u0434 u0443u0435u043cu043eu0433u043e object, receiving the light reflected by the beam of light emitted u0440u0430u0441u0449u0435u043fu043bu00a0u044eu0442 several beams of equal intensity, one of which is the but delaythe operation u0440u0430u0441u0449u0435u043fu043bu0435u043du0438u00a0 and optical delay u043fu0440u043eu0438u0437u0432u043eu0434u00a0u0442 after u043eu0442u0440u0430u0436u0435u043du0438u00a0 of researched object. the optical time delay takes place each u0440u0430u0441u0449u0435u043fu043bu0435u043du043du044bu0439 beam of light, and the optical delay u0440u0435u0433u0443u043bu0438u0440u0443u0435u0442u0441u00a0 in accordance with mathematics in u044bu0440u0430u0436u0435u043du0438u0435u043c. 1 u043d.u043f.u0444 - lu. 1 il. sl