Re: [PSUBS-MAILIST] Waterproof controls

["Mad Pirate Shin" <psub_only_temporary@hotmail.com>]

I had also wondered how a fishfinder display might withstand the flooding of 
the pressure hull.  I aim for the simplest design possible, so I worry more 
about the mechanical strength of the components and less about the 
reliability of the electrical components.  Along that line of thought I read 
in the Aquarius habitat's online "user manual" that the LCD screens on 
laptops were permitted but that monitors using Cathode Ray Tubes were not 
allowed in the habitat.  I had never thought of CRTs as being dangerous, but 
I am reminded of the time I threw a brick though one; the weight and range 
of the chunks of glass that came flying back at me sure gave me a surprise.  
Whether the risk of imploding the monitor is the reason for the ban on CRTs 
or there is some other reason, I wonder.
  I would enjoy reading anyone's thoughts on the subject of 
pressure/water-proofing interior components both for pressure hull flooding 
and for use in lock-out chambers(or ambient wet submersibles).  The Aquarius 
instructional 'primer' can be found here if yer interested.

http://www.uncwil.edu/nurc/aquarius/aum/ums0.htm




    regards,
     Shin




"And further more, be advised that although this is actually a live 
broadcast and is being sent out at this very moment, it is quite possible 
that it may arrive tomorrow, right now, or perhaps even yesterday." -Serial 
Experiments Lain ep#8







 > >----- Original Message -----
 > >From: <mckellar@earthlink.net>
 > >Sent: Thursday, April 17, 2003 8:43 PM
 > >Subject: [PSUBS-MAILIST] Waterproof controls
 > >
 > >
 > > > Hi All,
 > > >
 > > > I had wanted to provide emergency escape from a sub i design to
include
 > > > flooding the cabin.
 > > >
 > > > this leads to concern about the electronics etc inside.  My son tells
me
 > >he
 > > > has a friend with a thin film keyboard that he can roll up, rinse
under
 > >a
 > > > tap etc.  this would probably be the trick for the keyboard, but what
do
 > >i
 > > > do about joystick and thruster controls?  i guess the screen could be
 > > > behind glass, in a separate 1atm compartment.....
 > > >
 > > > any suggestions?
 > > >
 > > > peter


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