Single-pixel correlation applied to background-oriented schlieren measurement

Sugisaki, Hikaru; Lee, Chungil; Ozawa, Yuta; Nakai, Kumi; Saito, Yuji; Nonomura, Taku; Asai, Keisuke; Matsuda, Yu

doi:10.1007/s00348-021-03373-7

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Cited by 9 publications

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“…However, this cost should reduce significantly in the next years. Examples of current trends in BOS research include 3D applications [6,7,[34][35][36], quantifications and/or improvement of BOS features [5,23,[37][38][39], the use of smartphones [40], and the visualization of convective indoor air flows [41]. In several of these trends, hidden grid BOS can represent a useful tool thanks to its features.…”

Section: Discussionmentioning

confidence: 99%

Hidden Grid Background Oriented Schlieren in studying convective flows

Ambrosini

Rubeis

Paoletti

et al. 2023

J. Phys.: Conf. Ser.

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In this paper, we present a new BOS (Background Oriented Schlieren), based on a hidden grid, for studying heat flows. In the setup, we record a grid-based intensity pattern whose phase map carries information about the temperature gradient. The background (undistorted) pattern is hidden in the light source. Quantitative analysis is obtained by a windowed Fourier transform approach. Some experimental results are given to demonstrate the feasibility of the technique.

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