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A comment on Show HN: Hacking an ultrasound probe with a Raspberry Pi and low-cost hardware. Parent comment

Re:Show HN: Hacking an ultrasound probe with a Raspberry Pi ... by tyingq on Thursday July 27, 2017 @08:05PM (#14870902)
Yep. Array is the keyword that makes it easier to Google...phased arrays, curved arrays, etc. And of course, with a bunch of piezos, your signal processing problem is larger.
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Re:Show HN: Hacking an ultrasound probe with a Raspberry Pi ... by kelu124 on Friday July 28, 2017 @03:32AM (#14872619)
The point being that on these experiments, the sensor isn't an array of piezos, rather a single-element piezo. Cuts the costs (a fab invoices around 100-200e for such a sensor), but lowers the overall image quality.
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Re:Show HN: Hacking an ultrasound probe with a Raspberry Pi ... by amelius on Friday July 28, 2017 @05:17AM (#14872988)
I wonder if two sensors placed at a distance can make a huge difference, and how/if the image quality converges as you increase sensors.
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Re:Show HN: Hacking an ultrasound probe with a Raspberry Pi ... by kelu124 on Friday July 28, 2017 @08:25AM (#14873699)
One of the next experiment is to try with 8 small elements ;)
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