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フルテキストURLKJ00000156706.pdf ( 422.4KB ) 公開日 2010-04-19
タイトル超音波による貯槽内粉面形状の計測(第 3 報)
タイトルヨミチョウオンパ ニヨル チョソウナイ フンメン ケイジョウ ノ ケイソク ダイ 3 ホウ
タイトル別表記Measurement of Granular Surface Pattern in a Hopper by Ultrasnic Sensor (The 3rd Report)
作成者森元, 映治
糸井, 茂
早野, 延男
作成者ヨミモリモト, エイジ
イトイ, シゲル
ハヤノ, ノブオ
作成者別表記Morimoto, Eiji
Itoi, Shigeru
Hayano, Nobuo
作成者所属山口大学工学部
内容記述(抄録等)Measuring equipment with ultrasonic sensor has been developed for the granular surface pattern recognition in a hopper. The estimation algorithm was proposed which utilized the intensity of the received sound and the period in which the wave moved back and forth. The inclination angle and spatial position of the measured point on the surface were determined from the values taking into account the directivities of the sensors, surface condition of the reflection, and attenuation of the sound through the path. The pattern was depicted by microcomputer considering the mutual relations between the locations of the measuring points and the constraint due to the physical properties of the materials treated. The method was applied to the instrument whose resonance frequency and half width were 66kHz and 5 degrees, respectively. The fundamental characteristics of the measuring unit such as frequency dependence, directivities, attenuation, and measurement error have been studied experimentally. Sufficient results were obtained in a model hopper system with sand whose mean diameter was approximately 300 microns for three surface patterns of plane, concave, and convex.
本文言語jpn
主題機械工学
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
ISSN0372-7661
NCIDAN00244228
学内刊行物(紀要等)山口大学工学部研究報告
掲載誌名山口大学工学部研究報告
掲載誌名別表記Memoirs of the Faculty of Engineering, Yamaguchi University
39
1
開始ページ65
終了ページ71
発行日1988
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IDKJ00000156706
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/KJ00000156706