At 07:45 PM 7/18/2010 +0300, you wrote:
>in the worst of the cases
>
>if some water passes inside the jacks, would that cause any serious damage=
>to the hydrophones ??
That would depend on how the hydrophone is made. A properly made
hydrophone is made using what is called "Water Blocked" cable, if the cable=
gets a cut through u\its outer layer, or a connector leaks, the water can
not wick up the cable. If the hydrophone is cabled with standard microphone=
cable or coax as is used in some cases, yes, it most likely will have to go=
back to the manufacturer to be dried out and repaired...
>On 18 =C3=8E=C2=99=C3=8E=C2=BF=C3=8F=C2=85=C3=8E=C2=BB 2010, at 7:34 =C3=
=8E=C2=BC.=C3=8E=C2=BC., Marinos Koutsomichalis wrote:
>
> > that seems really interesting !!
> > thx !
> >
> > @Richard
> >
> > I have the dolphin ear pros, and want to experiment in various depths
> >
> > the thing is that having something like 50m cable or more in a
> hydrophone is not aways handy.. actually it is rarely handy, as I' ll
> have to carry 50m or so of cable (in each hydrophone) anytime I want to
> record in a a small lake or pod..
> >
> > cutting cables is out of the question,
> >
> > so I was thinking to have an extension cable and use some kind of
> substance (like the Scotch Fill) to insult the connection on the fly !
> >
> > let aside extension cables are expensive and having a dedicated set
> only for my hydrophones might be a little too much..
> >
> > thx !
> >
> > On 18 =C3=8E=C2=99=C3=8E=C2=BF=C3=8F=C2=85=C3=8E=C2=BB 2010, at 6:40 =
=C3=8E=C2=BC.=C3=8E=C2=BC., Mitch Hill wrote:
> >
> > > At 11:59 AM 7/18/2010 +0300, you wrote:
> > > >speaking of hydrophones,
> > > >
> > > >I want to make extension cables for my hydrophones, so I can dip the=
m
> > > >further down,
> > > >
> > > >the obvious solution would be to completely coat the joints with som=
e
> > > >waterproof substance, maybe slicon or rubber,
> > > >
> > > >but I' m wondering is there is any other way to ensure a waterproof
> > > >connection while remaining flexible on the same time.. Maybe there
> is some
> > > >kind of waterproof XLR plug out there ? or maybe some kind of vaccum=
> case
> > > >that could be handy ?
> > > >
> > > >anybody tried sth similar ??
> > >
> > > When I was working in oceanography, a common method of waterproofing =
a
> > > connection as you describe was to wrap it using a 3M product called
> > > "ScotchFil" and then overwrap it with Scotch 33 electrical tape to
> protect
> > > the ScotchFill which is a very soft self vulcanizing rubber type
> > > material. Scotchfil is actually a putty in tape form, it comes in a 5=
> foot
> > > long roll, 1 1/2" wide, about 1/8" thick... It is made and sold as a=
> high
> > > voltage insulation material...
> > >
> > > The neat thing about Scotchfil, its easy to remove when you want to
> > > separate the joint again, slit it with a knife and peel it off like
> > > removing the skin from a banana...
> > >
> > > I did high pressure testing in water to determine the reliability of =
a
> > > Scotchfil sealed joint at 15,000 lbs/sq in. for a project that requir=
ed
> > > going to maximum ocean depth and found the Scotchfil method was 100%
> > > reliable. For these depths we used Alpha FIT300 heat shrink tube over=
> the
> > > joint for mechanical strength...
> > >
> > > Its an incredibly simple way to make a foolproof underwater connectio=
n...
> > >
> > > --
> > >
> > > Thanks,
> > > Mitch & Shadow...
> > >
> > > http://www.4shared.com/dir/UTASxktL/wildlife.html
> > >
> > > Shadow's area: http://www.4shared.com/dir/ecfWjyZb/Shadow.html
> > >
> > >
> > >
> >
> >
> >
>
>
>
>
>
>
>------------------------------------
>
>"While a picture is worth a thousand words, a
>sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause
>Yahoo! Groups Links
>
>
>
--
Mitch
http://www.4shared.com/dir/UTASxktL/wildlife.html
Shadow's area: http://www.4shared.com/dir/ecfWjyZb/Shadow.html
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