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At 03:23 PM 9/21/99 +0800, Stephen Kamarudin wrote:

>The reason I am emailing is that I have an old mechanical decompression meter
>(circa 1960's I think?) and would appreciate any information that anyone out
>there in the techdiving world might have on this piece of equipment.

I think that thing uses a fixed orifice in a sealed chamber connected
to a small air-filled bladder.  Compression of the bladder moves air
into the chamber and decompression moves air back to the bladder.  The
size of the bladder is indicated on the meter with calibration to
indicate decompression information.  It's certainly not a good
approximation of actual tissue gas-loading.  The device is
commonly referred to as a 'bend-o-matic'.  :)

-Mike Rodriguez
<mikey@ma*.co*>

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