An ultrasonic 3D scanner

Overview

pic of a room 3d scanned with ultrasounds

An Ultrasonic 3D Scanner

Detailed build log and infos on my website

If you're looking for instructions detailed enough to build it for yourself, just add an Issue and I'll do it. I also haven't had the time to make the code human-readable. Though, it's still understandable.

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Comments
  • Wider FOV with motorized mount?

    Wider FOV with motorized mount?

    Hi! First of all, this is amazing, well done!

    You mentioned in your blog that it's limited to about a 45° FOV in two axes. Could you mount it on a stepper motor to rotate the transducers in one or both axes and then "stitch" your captured plots together, in the way that a phone camera stitches panoramic shots? It might not be useful in an environment with moving objects - or if the scanner is moving itself - but it would probably provide a cheap and easy way to extend the capabilities without necessarily building more arrays.

    (The motor itself might produce noise, of course, but that could probably be compensated for.)

    Dunno, just a thought. But keep up the good work! If you get to the point of producing a kit or commercial product, I'd love to get one and try it out!

    opened by jzellis 1
  • There *is* an existing application of 3D ultrasound

    There *is* an existing application of 3D ultrasound

    First of all, amazing work and great write-up too! In case you weren't aware, someone linked the article on Hacker News

    Anyway, you mentioned that you were trying to figure out why this (apparently) wasn't done before and being open to other suggestions. Well, 3D ultrasounds are a thing, but they're used for a very different purpose, namely medical imaging:

    https://en.wikipedia.org/wiki/3D_ultrasound

    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5385255/

    https://www.ob-ultrasound.net/brown3d.html

    http://www.engineeringhalloffame.org/profile-brown.html

    http://ardms.org/get-certified/Pages/SPI.aspx

    Apparently Tom Brown, one of the pioneers of ultrasound imaging, already made strides into 3D ultrasound imaging in 1975!

    This is the first thing I found when searching for "3D ultrasound" (on DuckDuckGo) so I'm kind of wondering how this slipped through. It's not quite the same application but it still counts, no?

    Anyway, I'm not saying this to discourage you - if anything it hopefully gives some ideas for refining your approach, no?

    Keep up the good work!

    (also, off-topic, but please consider adding an RSS feed to your blog so I can subscribe to it)

    opened by JobLeonard 5
Owner
Alex Toussaint
Alex Toussaint
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