K-2 符号付シュリーレン法を利用した音場測定(測定技術・映像法・非破壊検査)

概要

論文の詳細を見る
Singed Schlieren imaging method using differential technique between with and without acoustic field was described. Since conventional Schlieren images do not have phase information, tomographic reconstruction can not adapt to complex acoustic field whose wave front was not uniform. Wave-fronts of multi-beam for imaging or therapy are very complicated and not uniform. We investigated the possibility of applying this technique to visualization of an acoustic field radiated from split focusing HIFU (high intensity focused ultrasound) transducer. Singed Schlieren images showed that phases of wave-front of two focal points were inverted. This result demonstrate that singed Schlieren system has sufficient information for tomographic reconstruction.
超音波エレクトロニクスの基礎と応用に関するシンポジウム運営委員会の論文
2006-11-15