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hammockman / breather

Ventilators for the Masses
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homebrew ultrasonic O2 &| flow sensor #11

Open hammockman opened 4 years ago

hammockman commented 4 years ago

https://apps.dtic.mil/dtic/tr/fulltext/u2/a189723.pdf

racleave commented 4 years ago

Cool, but doesn't strike me as overly homebrew. Or am I missing something?

hammockman commented 4 years ago

the homebrew bit is replicating the USAF device using $0.4 ultrasonic sensors to yield the equivalent of this.