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フルテキストURLKJ00004351138.pdf ( 554.7KB ) 公開日 2010-04-19
タイトルThree-dimensional measurement of granular surface profile by ultrasonic array sensor
作成者Morimoto, Eiji
Egawa, Naoki
Itoi, Shigeru
Wada, Kenzo
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
作成者別表記森元, 映治
糸井, 茂
和田, 憲造
作成者所属山口大学工学部
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.
本文言語eng
主題工学
資料タイプtext
ファイル形式application/pdf
出版者山口大学工学部
出版者ヨミヤマグチ ダイガク コウガクブ
NII資料タイプ紀要論文
ISSN0386-3433
NCIDAA0086073X
学内刊行物(紀要等)Technology reports of the Yamaguchi University
掲載誌名Technology reports of the Yamaguchi University
4
5
開始ページ357
終了ページ369
発行日1991-12
著者版/出版社版出版社版
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
リポジトリIDKJ00004351138
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/KJ00004351138