Holographische Interferometrie zeitlich stationärer und instationärer Zustände / Holographie Inter}erometry of Stationary and lnstationary Processes

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Abstract
The influence of instationary processes such as turbulences on the interference pattern of the well-known double-exposure technique for holography is shown. A new single-exposure technique is described which enables more detailed and direct information on instationarities in gas-flow. Examples are shown in which turbulences in gas-filled incandescent lamps can be detected by failure of the typical interference pattern when using the double-exposure technique or far better by direct appearance of black striations when using the single-exposure technique

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