RE: [PSUBS-MAILIST] Blue-green laser (was: Empress of Ireland)

[Tim Reilly <TimR@cclengineering.com>]

The system used the three inputs, blue-green laser, high-freq active sonar,
and passive sonar to create a virtual image of the enviroment around the
pilot of the craft.  Sounds pretty cool.  My sub, once constructed, is going
to be a test platform for different types of technology and for mapping
bottom areas to its operational depth.  Currently I want it to have an
operational depth of about 500 feet.  I will expand from there.

Tim R.

-----Original Message-----
From: Michael B Holt [mailto:tlohm@juno.com]
Sent: Friday, March 21, 2003 11:15 AM
To: personal_submersibles@psubs.org
Subject: [PSUBS-MAILIST] Blue-green laser (was: Empress of Ireland)


On Fri, 21 Mar 2003 10:19:16 -0800 Tim Reilly writes:
>Speaking of dreaming, I was just reading a book called Stingray by 
>Bill Keith, and I was wondering, if there are any electronics engineers
out
>there, if a system using a blue-green laser and active and passive 
sonar
>would be practical. 

In Busby, there's a chart showing the attentuation of various
colors.    Well, I remember seeing one somewhere.   Blue-green
penetrates deeper than any other color, I think.

What did that system do with the combination of laser and
sonar? 

> This is my primary concern with a sub, is being  able to
>see for an extended distance under water.

That's one thing that holds me back from getting really
serious: around here, visibility is about a meter at noon
at a depth of a meter!


Mike H.


________________________________________________________________
Sign Up for Juno Platinum Internet Access Today
Only $9.95 per month!
Visit www.juno.com