THANK YOU SO MUCH! I had trouble understanding the whole side lobe thing in a book of mine. Like I was already thinking that at some angles there would be no energy transfer. Even with normal acoustics. I wish that books would integrate "in practice" more with the theoretics.
@@NDE40 I get it. But allow me just make a little question. In a PA probe, for instance, you mean that probably I won't see ecoes corresponding to the side lobes due to a "continuous" sound field geometry, since it can have a "wider" bandwidth compared to a "theoretically single-frequency" one? I don't know if I'm clear enough.
THANK YOU SO MUCH! I had trouble understanding the whole side lobe thing in a book of mine. Like I was already thinking that at some angles there would be no energy transfer. Even with normal acoustics. I wish that books would integrate "in practice" more with the theoretics.
Super sir, keep doing more videos about NDT and it's Technics.
I regularly watch your videos
Thank you for sharing your knowledge with us make using great illustration for minimizing the confusions.
老师讲解的非常棒，内容也很丰富。nice
Thank you
Great explanation. Could you recommend some paper or other literature approaching the effects of bandwidth (or lobes) in the reflected signals?
Unfortunately no - most literature I know on this topic has too many errors in their formulas
@@NDE40 I get it. But allow me just make a little question. In a PA probe, for instance, you mean that probably I won't see ecoes corresponding to the side lobes due to a "continuous" sound field geometry, since it can have a "wider" bandwidth compared to a "theoretically single-frequency" one? I don't know if I'm clear enough.
Dear sir, is Near field effects will be there in Dual crystal probe?
Usually dual element probes have "plexiglas" wedges included within the probe and the end of the near field is within those wedges.