|
Hi Ian, Dan, Paul, Al and everyone. Bill
here.
I mean't to say ultra sound underwater
communications instead of microwave underwater communications. I got the terms
mixed up..
There ARE microwave underwater communications
systems but they use lines that travel up to buoys that then send out in
microwave.
Here are many links to wireless underwater
communications. Most using ultra sound and some using microwave with
buoys.
I made a mistake in terms between WIRED microwave
and WIRELESS ultrasound, but that isn't what is important.
What IS important is that
ultrasound is WIRELESS and if you can get a signal through to a sub from a wireless
underwater (or boat base station unit for it) ultrasound communication
unit,
then that signal can operate other things and
should be able to operate or be modified to operate remote control equipment on
a sub.
Something as simple as the Ocean Reef neptune II
full face diver's mask has the communications equipment built into it
that
could transmit to a sub and thereby operate remote
control equipment in that sub. Do you think that might be safer than having
the sub manned for its dangerous depth
testing?
Here's the links. Its a few of them, but if
you read them all like I did, you will get a rough overview and understanding of
how what I am
proposing just might work to remote operate a sub
for depth testing.
Both the two links below are specifically for
equipment for sale for communicating wireless from the surface to a sub
underwater. The beauty of these two links is
they are already specifically designed to
communicate from the surface to the submarine or from submarine to submarine.
Think about it fellows,
if you can send a wireless signal, you can send a
signal to remote control equipment on the sub. Then you could even monitor
whether the remote function was
done and if it worked by having the sub send you
back a signal YOU receive from it. After depth testing is over, you can use the
equipment to communicate with a
support ship or divers outside the sub! Every
1 atm sub with enough room should have it anyway.
This three links below is the Aquarius
habitat and it has pics and text on its microwave communications
system.
This below link is from Divelink a company that
sells to private and military for wireless underwater ultrasound
communications.
The below link is from Ocean Technology Systems.
Another company selling ultrasound wireless underwater communications
equipment.
This below links are articles about and equipment
for sale by Ocean Reef underwater communications equipment.
This below link show various different ultrasound
wireless underwater communications equipment for sale from various
manufacturers.
This last link below is a page with a whole HOST of
links to underwater communication articles and sites.
----- Original Message -----
Sent: Wednesday, October 26, 2005 10:11
PM
Subject: Re: [PSUBS-MAILIST] hull
test
Hi Bill,
I'm not familar with the microwave based
underwater communications
equipment you're refering to. Do you have
any pointers or links
you could read up on this?
It has been my
understanding that radio waves don't travel very far
underwater. The
water absorbs the energy from the microwaves within
a few wave lengths,
which wouldn't be very far given the short wave
length of
microwaves.
Somebody else on this list a while back claimed that it is
possible
for underwater radio wave transmission as a communication
method.
If I remember correctly they where building something based
around
this method.
Cheers,
Ian.
On Wed, 26 Oct 2005
13:29:46 -0400
"Akins" <lakins1@tampabay.rr.com>
wrote:
> Your below post got me to wondering Dan.
>
>
Since we use microwave transmissions for underwater communications,
>
why couldn't microwave transmissions be used to activate a remote
>
control in a sub the size of Carsten's so that a test line would
> only
be there for making sure the sub did not drift away and for a
>
secondary backup. Would the microwave transmissions go thru the hull
and
> the remote could be rigged to activate the ballast pumps so the
sub
> could surface after the test depth and time were reached?
>
> Would this be feasible or practical?
>
> Bill.
>
>
> ----- Original Message -----
> From: Dan H.
> To: personal_submersibles@psubs.org
> Sent: Wednesday, October 26, 2005 8:12
AM
> Subject: Re: [PSUBS-MAILIST] hull test
>
>
> Silky,
>
> A sub hull is a lot
of money and work to loose if you lower it to the bottom
>
for a test on a line, with no person in it, but it's the safest way to test
> a personal sub. Of course testing in a pressure
chamber would be even
> better but most small sub builders
don't have or can't afford this luxury.
> Even with the
risk of loosing the sub because of a simple line malfunction,
> a deep water test of the hull should be done
unmanned. After all, it's a
> test to see if you'll
be safe diving in it.
>
> A sub the size of Carsten's
is not in this category. I can only imagine the
>
feeling in Carstan's gut when he does his tests, manning it himself. I
have
> a lot of faith is the calculating skills of a man
that can design and build
> such a project and I'm sure
he's pretty confident he will have no problems
> he can't
solve as he goes, but we all know there is considerable risk
> involved.
>
> P-subs should only
be test proven unmanned!
> Dan H.
> -----
Original Message -----
>
************************************************************************
************************************************************************
************************************************************************
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 311
Weare, NH
03281
603-529-1100
************************************************************************
************************************************************************
************************************************************************
|