Spatial Frequency Analysis of Holograms of Two Droplets in Close Proximity

• 資料種別: 記事
• タイトル: Spatial Frequency Analysis of Holograms of Two Droplets in Close Proximity
• 著者・編者: Dai NAKAI; Yohsuke TANAKA
• 著者標目: Dai NAKAI; Yohsuke TANAKA
• タイトル（掲載誌）: Advanced experimental mechanics / Editorial board for advanced experimental mechanics [編]
• 巻号年月日等（掲載誌）: 8:2023.8
• 掲載巻: 8
• 掲載ページ: 33-38
• 掲載年月日（W3CDTF）: 2023-08
• ISSN（掲載誌）: 2189-4752
• ISSN-L（掲載誌）: 2189-4752
• 出版事項（掲載誌）: Niigata : The Japanese Society for Experimental Mechanics
• 出版地（国名コード）: JP
• 本文の言語コード: eng
• NDLC: ZM17
• 対象利用者: 一般
• 所蔵機関: 国立国会図書館
• 請求記号: Z63-D560
• 連携機関・データベース: 国立国会図書館 : 国立国会図書館雑誌記事索引; https://ndlsearch.ndl.go.jp
• 書誌ID（NDLBibID）: 033102133; http://id.ndl.go.jp/bib/033102133
• 整理区分コード: 632

• 要約等: <p>Micro-droplet collision-coalescence processes can be observed more efficiently by detecting the approaching droplets in advance of the holographic reconstruction. In this study, we experimentally verify the mathematical formulation of the relationship between the stripe pattern on the spectral distribution of the hologram of two micro-droplets and their relative displacement. This relationship enables us to directly estimate the droplet displacements from the spectral distributions of holograms. We record holograms with two dot-printed glass plates while varying the inter-dot distance and confirm that the stripe pattern appears and varies with the distance between the dots. We also confirm that the detected stripe spacings of recorded holograms fit well with the theoretical spacing values calculated with our formula when the two dots are close but not colliding. Our method contributes to a better understanding of cloud microphysical processes, which can lead to more accurate precipitation prediction.</p>
• DOI: 10.11395/aem.8.0_33
• オンライン閲覧公開範囲: インターネット公開
• 連携機関・データベース: 科学技術振興機構 : J-STAGE; http://www.jstage.jst.go.jp

• 要約等: <p>Micro-droplet collision-coalescence processes can be observed more efficiently by detecting the approaching droplets in advance of the holographic reconstruction. In this study, we experimentally verify the mathematical formulation of the relationship between the stripe pattern on the spectral distribution of the hologram of two micro-droplets and their relative displacement. This relationship enables us to directly estimate the droplet displacements from the spectral distributions of holograms. We record holograms with two dot-printed glass plates while varying the inter-dot distance and confirm that the stripe pattern appears and varies with the distance between the dots. We also confirm that the detected stripe spacings of recorded holograms fit well with the theoretical spacing values calculated with our formula when the two dots are close but not colliding. Our method contributes to a better understanding of cloud microphysical processes, which can lead to more accurate precipitation prediction.</p>
• DOI: 10.11395/aem.8.0_33; https://doi.org/10.11395/aem.8.0_33
• 関連情報（URI）: http://id.ndl.go.jp/bib/033102133; https://ndlsearch.ndl.go.jp/books/R000000004-I033102133
• 連携機関・データベース: 国立情報学研究所 : CiNii Research; https://cir.nii.ac.jp/
• 提供元機関・データベース: Japan Link Center; https://japanlinkcenter.org/top; 雑誌記事索引データベース; https://ndlsearch.ndl.go.jp
• 書誌ID（NDLBibID）: 033102133; http://id.ndl.go.jp/bib/033102133