| フルテキストURL | KJ00004351138.pdf ( 554.7KB ) 公開日 2010-04-19
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| タイトル | Three-dimensional measurement of granular surface profile by ultrasonic array sensor |
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| 作成者 | Morimoto, Eiji
Egawa, Naoki
Itoi, Shigeru
Wada, Kenzo
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| 作成者ヨミ | モリモト, エイジ
エガワ, ナオキ
イトイ, シゲル
ワダ, ケンゾウ
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| 作成者別表記 | 森元, 映治
糸井, 茂
和田, 憲造
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| 作成者所属 | 山口大学工学部
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| 内容記述（抄録等） | Ultrasonic measuring system has been developed to image three-dimensional surface of granular materials stored in a hopper for more accurate estimation of content amount than conventional level measuring method. Eight bimorph type linear array ceramic sensors compsed of eight receiving elements each were located in a concentric configuration around a condenser type emitter sendig 40kHz pulses. An incident angle to the arrays and a distance from surface were measured by a phase difference between adjacent receiving elements and by a sound propagation time between transducer, respectively. On the basis of properties studied by preliminary experiments on particle sizes, shapes, and surface conditions, model patterns of concave and convex in a vessel were tested to investigate the characteristics of the equipment. Estimated profiles were displayed in an stereogram manner showing good results especially for the concave profiles with an average error of ±8mm in height.
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| 本文言語 | eng
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| 主題 | 工学
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| 資料タイプ | text |
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| ファイル形式 | application/pdf |
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| 出版者 | 山口大学工学部
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| 出版者ヨミ | ヤマグチ ダイガク コウガクブ
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| NII資料タイプ | 紀要論文 |
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| ISSN | 0386-3433
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| NCID | AA0086073X
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| 学内刊行物(紀要等) | Technology reports of the Yamaguchi University |
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| 掲載誌名 | Technology reports of the Yamaguchi University |
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| 巻 | 4 |
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| 号 | 5 |
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| 開始ページ | 357 |
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| 終了ページ | 369 |
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| 発行日 | 1991-12 |
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| 著者版/出版社版 | 出版社版 |
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| 備考 | 本文データは国立情報学研究所において電子化したものである |
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| リポジトリID | KJ00004351138 |
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| 地域区分 | 山口大学
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| URI | http://www.lib.yamaguchi-u.ac.jp/yunoca/handle/KJ00004351138 |
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