Imaging acoustic standing waves in the presence of flowing gas
Applied optics(2023)
摘要
A method for imaging an acoustic standing wave in the presence of flowing gas is described. The optical power at the acoustic frequency in each pixel of a series of high-speed transmission electronic speckle pattern interferograms is used to map the steady-state pressure variations of an acoustic standing wave. The utility of the process is demonstrated by imaging the standing wave inside a transparent organ pipe. (c) 2022 Optica Publishing Group
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关键词
waves,imaging,standing,gas
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