19:55 is so confusing. According to law the the lower the frequency the more the thickness of PZT and vice versa. In that example 2 transducers one with 12MHz, and the other is 10MHz Then the 12 should have less thickness material compared with 10MHz one !!
If the propagation speeds were the same, I'd agree. But the PZT element relies on propagation speed too, not just frequency. The example shows 2 different propagation speeds and 2 different frequencies.
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Thank you so much for this video!!! 🙏🏽🙏🏽
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Thanks alot.
Does the button of frequency in the ultrasound machine change the frequency of the probe?
No
Hi! where can we get your workbook to follow on the units?
Really appreciate it
19:55 is so confusing. According to law the the lower the frequency the more the thickness of PZT and vice versa.
In that example 2 transducers one with 12MHz, and the other is 10MHz
Then the 12 should have less thickness material compared with 10MHz one !!
If the propagation speeds were the same, I'd agree. But the PZT element relies on propagation speed too, not just frequency. The example shows 2 different propagation speeds and 2 different frequencies.
@@SononerdsHi, the propagation speed for A is higher than B. Isn’t that an indication that transducer B will have a thicker PZT crystal?
As far as I understand, Z stands for Zirconium, Zr, not Zink
Hm. That makes way more sense. I had heard it as Zinc and never gave it another thought.