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The Reflections of Ultrasound of an Obstacle

Posted Mar 18, 2019, 6:43 p.m. EDT Piezoelectric Devices, Acoustics & Vibrations Version 5.4 2 Replies

Ahmad Muttaqi
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Hello!

I built a model of acoustic interface which consists of a water domain and there is an obstacle(acrylic) inside. The transducer (PZT-5H) will transmitted a wave and will received it back after it hit an obstacle. I already received back the signal and represented it using point graph. However, there is something that I am unsure about. Can someone tell me whether there will be a reflection from inside of the obstacle? I mean is it supposed to be 2 signals from the obstacle, one from the wall and one from inside?

Thank you.

2 Replies Last Post Apr 16, 2019, 12:35 p.m. EDT
Edgar J. Kaiser Certified Consultant
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Posted: 5 years ago Mar 19, 2019, 6:35 a.m. EDT

You should see reflections from the other wall, even multiple reflections inside the obstacle. They will be less intense, depending on the ratio of acoustic impedances of water and obstacle.

Cheers Edgar

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Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
You should see reflections from the other wall, even multiple reflections inside the obstacle. They will be less intense, depending on the ratio of acoustic impedances of water and obstacle. Cheers Edgar
Ahmad Muttaqi
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Posted: 5 years ago Apr 16, 2019, 12:35 p.m. EDT

Hello Mr. Edgar,

Thank you for the reply. That helped me a lot in justifying my model.

Hello Mr. Edgar, Thank you for the reply. That helped me a lot in justifying my model.

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