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A thought just accurred to me (this happens every now and then) If I plan on operating a small dry ambient submarine... Even though I do not intend to get any electronics wet dirrectly, what effects can I ecpect from a standard crt? What alternative displays would be best? An imploding crt would add some exitment to a dive but I would prefer to avoid this...would these do well at shallower depths or should I stear clear of using one? David Bartsch > Date: Mon, 8 Feb 2010 09:13:49 -0500 > From: jonw@psubs.org > To: personal_submersibles@psubs.org > Subject: Re: [PSUBS-MAILIST] my optronic mast idea with sketch > > > Jens, > > Comments are inline below > > Jens Laland wrote: > > Would this mean that my own breathing (producing damp air) would not be > > held up by the air (in a cold environment), but rather condense itself > > asap on the nearest surface that is colder than itself, is that it? > > > > If this is correct, then the inside of a personal submarine operating in > > Norwegian waters would be a rather cold experience combined with a > > constant condensation problem. What have I got myself involved in here? > > > > > > Yes. I'm sure you've "seen your breath" on really cold days when you > walked outside. This is the moisture in your breath immediately > condensing as it mixes with the air. A surface for condensation isn't > absolutely necessary since water vapor can attach to molecules of air > directly, under certain conditions of temperature and dew-point. This > happens all the time in the form of clouds and fog. To rest your fears > regarding cold Norwegian waters, even that water is warmer than the > conditions necessary to produce immediate condensation of the water > vapor in your breath. The inside of your submarine will never be colder > than the temperature of the water it is immersed in. > > > > > There is a possibility that I might have misunderstood what you've just > > said when I did built my CRT enclosure. > > > No, it was I who misunderstood your test. Thanks for the detailed > explanation and you can disregard what I said about the environmental > conditions. I thought you were going to test the survival of an > unprotected monitor in humid conditions. Since you are isolating the > monitor in an air-tight container and flushing the container with dry > air, my previous comments do not apply. > > > Jon > > > > > ************************************************************************ > ************************************************************************ > ************************************************************************ > The personal submersibles mailing list complies with the US Federal > CAN-SPAM Act of 2003. Your email address appears in our database > because either you, or someone you know, requested you receive messages > from our organization. > > If you want to be removed from this mailing list simply click on the > link below or send a blank email message to: > removeme-personal_submersibles@psubs.org > > Removal of your email address from this mailing list occurs by an > automated process and should be complete within five minutes of > our server receiving your request. > > PSUBS.ORG > PO Box 53 > Weare, NH 03281 > 603-529-1100 > ************************************************************************ > ************************************************************************ > ************************************************************************ > Hotmail: Trusted email with powerful SPAM protection. Sign up now. |