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Extension of measurable velocity limit of ultrasonic velocity profiling based on phase difference gradient analysis
http://hdl.handle.net/10258/0002000360
http://hdl.handle.net/10258/000200036069b5253e-c4fa-40cc-8e1b-e555a749fa71
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
Meas_Sci_Technol_Rev2 (1).pdf (4.8 MB)
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| アイテムタイプ | 学術雑誌論文 / Journal Article.(1) | |||||||||||||
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| 公開日 | 2025-06-26 | |||||||||||||
| 書誌情報 |
en : Measurement Science and Technology 巻 36, 号 2, p. 25302, 発行日 2025 |
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| エンバーゴ | ||||||||||||||
| 日付 | 2026-01-10 | |||||||||||||
| 日付タイプ | Available | |||||||||||||
| タイトル | ||||||||||||||
| タイトル | Extension of measurable velocity limit of ultrasonic velocity profiling based on phase difference gradient analysis | |||||||||||||
| 言語 | en | |||||||||||||
| 言語 | ||||||||||||||
| 言語 | eng | |||||||||||||
| キーワード | ||||||||||||||
| 言語 | en | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | velocity profile | |||||||||||||
| キーワード | ||||||||||||||
| 言語 | en | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | flow measurement | |||||||||||||
| キーワード | ||||||||||||||
| 言語 | en | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | signal processing | |||||||||||||
| キーワード | ||||||||||||||
| 言語 | en | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | signal-to-noise ratio | |||||||||||||
| キーワード | ||||||||||||||
| 言語 | en | |||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | ultrasonics | |||||||||||||
| 資源タイプ | ||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||
| 資源タイプ | journal article | |||||||||||||
| アクセス権 | ||||||||||||||
| アクセス権 | open access | |||||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||||
| 著者 |
荘司, 成熙
× 荘司, 成熙
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| 抄録 | ||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||
| 内容記述 | A signal processing method, called the ultrasonic cross-spectrum method, is proposed to extend the measurable velocity limit of ultrasonic velocity profiling. It focuses on the phase difference spectrum within the signal bandwidth and extends the velocity limit by analyzing its gradient. The algorithmic performance is confirmed via echo signal simulation and experimental pipe flow measurement. Consequently, setting a threshold for the coefficient of determination for phase-difference spectrum fitting enables us to reduce the false velocity detection rate to <1.6% and achieve an effective data rate of 42% in low signal-to-noise ratio conditions. This data rate is twice that of a conventional method. Moreover, a comparison of pipe flow results between our method and particle image velocimetry shows that the velocity data difference is within ±2% for a velocity range twice the conventional measurable velocity limit. In short, we demonstrate the potential of this method for high-performance velocity profiling. | |||||||||||||
| 言語 | en | |||||||||||||
| 出版者 | ||||||||||||||
| 出版者 | IOP Publishing Ltd | |||||||||||||
| 言語 | en | |||||||||||||
| DOI | ||||||||||||||
| 関連タイプ | isVersionOf | |||||||||||||
| 識別子タイプ | DOI | |||||||||||||
| 関連識別子 | 10.1088/1361-6501/ada39d | |||||||||||||
| ISSN | ||||||||||||||
| 収録物識別子タイプ | PISSN | |||||||||||||
| 収録物識別子 | 0957-0233 | |||||||||||||
| ISSN | ||||||||||||||
| 収録物識別子タイプ | EISSN | |||||||||||||
| 収録物識別子 | 1361-6501 | |||||||||||||
| 権利 | ||||||||||||||
| 権利情報 | This is the Accepted Manuscript version of an article accepted for publication in Measurement Science and Technology. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at 10.1088/1361-6501/ada39d. | |||||||||||||
| 言語 | en | |||||||||||||
| 著者版フラグ | ||||||||||||||
| 出版タイプ | AM | |||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||
