2828 パイプを伝搬するガイド波の送受信効率向上に関する検討(S37-2 非破壊評価とモニタリング(2),S37 非破壊評価とモニタリング)

抄録

An effective generation of guided waves in a pipe was proposed with a fixed-band as a reflector of guided waves. The reflector is located nλ/2 (n=1,2,3,,,) apart from the guided wave sensors for effective generations. In above cases, large amplitude is obtained because multiplereflections between the reflector and sensor were occurred under phase-matching conditions. Experimental and theoretical considerations were shown in the paper.