Carl,
I'm sure there are better methods, but this $30 unit, battery and shipping
included, works fine. Why use five lasers in place of a $30 box, $10 worth
of Radio Shack stuff and a few wires. I have one box and it monitors all
five pods.
Lasers sounds like overkill, don't you think?
Thanks,
Dan H.
----- Original Message -----
From: "Coalbunny" <coalbunny@vcn.com>
To: <personal_submersibles@psubs.org>
Sent: Friday, March 05, 2004 4:15 PM
Subject: Re: [PSUBS-MAILIST] Leak Alarm
There are laser sensors that could help. When water leaks in, it
disrupts the laser beam and sets off an alarm. Water can be crystal
clear, and it'll still change the laser beam (diffraction).
Carl
Dan H. wrote:
Here's little unit I thought might be of interest to anyone building.
I wanted to install something to detect any water leaking in to my
K-350's battery pods and the three thruster pods before it creates
a problem with operations.
I fooled around with a few circuits but they were either to sensitive or
not sensitive enough. I came across this little unit on the net and
ordered it. It sells for around $30 including a nine volt battery and
shipping.
http://www.floodbusteronline.com/index.html
I made my own sensors, which are no more then a piece of copper in each
pod, and ran wires to the unit in the hull where I can switch to "All
pods" or select each pod separately to determine where the leak is. The
only things I needed to add to the unit were a on/off switch, a selector
switch and a diode in the line from each pod.
Cheap and it works well,
Dan H.
--
Spotted Owl...it's what's for dinner.