M系列符号化積層探触子によるパルス圧縮超音波撮像に関する研究

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2017/09/01

タイトル(英語): Study on Pulse Compression Ultrasonic Imaging by a Stacked M-sequence Encoding Probe

著者名: 村田　頼信（和歌山大学システム工学部），金田　大裕（和歌山大学大学院システム工学研究科）

著者名(英語): Yorinobu Murata (Faculty of Systems Engineering, Wakayama University), Daiyu Kaneda (Graduate School of System Engineering, Wakayama University)

キーワード: 超音波撮像，M系列，パルス圧縮，積層探触子，符号化送信，PVDF　　Ultrasonic imaging，M-sequence，Pulse compression，Stacked probe，Encoding transmission，PVDF

要約(英語): If an ultrasonic imaging inside an object is possible without scanning by using an ultrasonic probe having a small aperture, the ultrasonic imaging system becomes a simpler and easier system. We have developed a stacked encoding ultrasonic transducer which can transceive an M-sequence signal only by a pulse drive in order to realize an ultrasonic measurement with a high resolution and high sensitivity. When an ultrasonic probe with such transducer is used, a pulse compression measurement is enabled only with a general ultrasonic flaw detector and a PC without using special devices. In this study, we focused on the characteristic that the received waveform by this probe changes with transceiver directions of a wave. A stacked M-sequence encoding probe of 7 bits length was manufactured and the one-dimensional point spread function in transceiver angle was obtained. As a result, it was confirmed that this probe has not only the pulse compression characteristic but the angle selecting characteristic. Finally, by using the proposed probe, the cross-sectional imaging for point objects without scanning was demonstrated.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.137 No.9 （2017） 特集：知能メカトロニクス分野と連携する知覚情報技術

本誌掲載ページ: 1153-1158 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/137/9/137_1153/_article/-char/ja/