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Post by SeaRat on Jan 3, 2013 22:48:00 GMT -8
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Post by nikeajax on Jan 4, 2013 17:48:00 GMT -8
I wish I understood the jargon and acronyms better! I often wondered how they test them: glad they use a machine! I'd hate to be the guy testing them at depth if they didn't have a gizmo for it, "OH-MAN, this thing is a piece of expletive-deleted... I can't wait to get back to the surface..."
Jaybird
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Post by luis on Jan 5, 2013 5:51:55 GMT -8
Thanks for the link to the NEDU in Wikipedia. Some of those pictures look old, but some of those facilities haven’t changed much.
Last summer I visited the NEDU, the dive Depot, and the dive School in the base in Panama City. It was interesting. I also spend some time talking with some of the engineers and researchers in the facilities and at the Dive Lab.
We talked a lot about “work of breathing” and what I call “perceived work of breathing”. Lets just say that the pressure probes on the breathing simulation test dummies is not located on the lungs (as you would think from that old diagram showing a double hose regulator versus a single hose).
They do a lot of work (testing and development) on re-breathers. Actually, equipment development is not done at NEDU, it is mostly done at the Dive Depot across the street inside the base.Actually, equipment development is not done at NEDU, it is mostly done at the Dive Depot across the street inside the base. At NEDU they mostly do testing and certification of equipment (plus a lot of other research). A lot of the research is related to environmental human physiology.
Some of the research is very applicable to the work of breathing on double hose regulators. The location of the counter lungs and location of a DH regulator demand valve have a lot in common when measuring performance.
The people I met where great and I have stayed in touch with some, but there was one particular researcher (PhD/ MD type) that I wanted to talk more to, but they were in the middle of some critical testing when I was there.
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