Ultrasound Transducer (Part 1) Piezoelectric Material and Matching Layer | Ultrasound Physics #9

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Let's look at the ultrasound transducer. In this talk we will describe the different constituents of the ultrasound probe. Our focus, for part 1, will be on the piezoelectric material and the matching layer.
In the next talk we will discuss, the damping block, quality factor and the probe wiring.
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Not sure if the question banks are for you?
If you're here, you're likely studying for a radiology physics exam. I've spent the last few months collating past papers from multiple different countries selecting the most commonly asked questions. You'll be surprised how often questions repeat themselves!
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[@alexandrunecula9931]

Undergrad MS4 here going for Radiology ... your videos are just so amazing. Thanks 🙌

[@radiologytutorials]

Thank you Alexandru!

[@fazaltahir4216]

Thanks a lot sir Michael 🎉

[@dung144vt]

Amazing explanations with animation!

[@ayf.4]

أفضل شرح وجدته .

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Your metaphors are outstanding, my friend. Thanks for helping many of us. We’ll stick with you till the end :) don’t you ever stop creating videos. You’ve got great talent. -from a guitarist radiologist 😆-

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😆Thanks!

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Thank you ❤️

[@govindrao6624]

Hands down for your explanation ☺️

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Thanks!

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Thanks @simonlangat8346! If you have a look at the playlists on my channel, that should give you a good idea of what is available on my channel at the moment 😀

[@dranshumansahu6114]

How does a single piezoelectric material doing two works?

[@quranforkidseasytranslatio2306]

👏

[@sywang5946]

WHY the match layer should be 1/4 fo the PTZ？

[@MMI445]

According to an article on the "Probo medical" website, "Why Does an Ultrasound Probe Need Matching Layers?", matching layers with a size larger than 1/4 of the wavelength of the ultrasound attenuate the ultrasound more. I guess it has something to do with the amount of ultrasound that is absorbed by the matching layer depending on the wavelength/frequency of the ultrasound. Though it could definitely be something else.

[@bobboggy4469]

why is matching layer thickness 1/4 the wave length is optimal?

[@bobboggy4469]

to decrease the attenuation?

[@annabee1734]

Nxt part plz

[@pavyaspeaks5808]

what is a material used for matching layer ?

[@Ram-tv3pl]

Epoxy resin and aluminium powder

[@pavyaspeaks5808]

can we use FR04 as matching layer???? and if yes, then what should be the thickness of matching layer if thickness of piezo crystal is 0.5mm?