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Re: [PSUBS-MAILIST] Sonar Transparent
Hi George, I encourage you to contact Gary even if you get some ideas
from the board. He did a sonar presentation at psub convention one
year, it was very good. Maybe there is a DVD avaliable for that year.
My thoughts are find out what type of plastic (or metal) is used on
the fish finder and use that. I'd guess it would be nylon or bass.
Cheers,
Ian.
On Tue, 1 Aug 2006 11:36:24 -0400
"George Slaterpryce" <gslaterp@hotmail.com> wrote:
> I feel kind of odd cold-emailing someone... I'll see what pans out here before I do so. But I'll Definatley contact him if the boards are dry. Thank you VERY much for the refernce.
>
>
> George H. Slaterpryce III
> ----- Original Message -----
> From: Cliff Redus
> To: personal_submersibles@psubs.org
> Cc: Gary Boucher
> Sent: Tuesday, August 01, 2006 11:30 AM
> Subject: Re: [PSUBS-MAILIST] Sonar Transparent
>
>
> George,
>
> Contact Dr. Gary Boucher (engineer@sport.rr.com). Gary designed and built his on Psub about 10 years back. He checks in with psubs now and then but does not follow message board on a regular basis. Gary did his doctorial dissertation on sonar for his psub. I am sure he would be able to guide you in this issue.
>
> Cliff
>
>
>
> ----- Original Message -----
> From: George Slaterpryce
> To: personal_submersibles@psubs.org
> Sent: Tuesday, August 01, 2006 7:41 AM
> Subject: [PSUBS-MAILIST] Sonar Transparent
>
>
> I'm looking for some sort of sonar/radio transparent material I can use for my transducer housing. At the moment I'm fooling around with some cheap hobby-store rsonar appMods for educational robotics, and pretty much every single thing I try completley negates the sonar.
>
> I've even tried mounting it on a piece of teflon sheeting and it still seemed to "muffle" it.
>
> The option of canabalizing a fish finder as a sonar system like was done for Archimedes is unfortunatley not an option. This system is far too small to support the weight.
>
> As for an update, now that I've gotten back into things since my work schedule cooled down some.
> 1. BugEye is at the bottom of the pond, I got the tether tangled in something and was stupid enought to pull until I got only the tether back. Much Colorful language ensued.
> 2. Archimedes is slowly shaping up... but everything is so expensive for that scale that I do one thing at a time.
> 3. BugEye II is in the works, I'm hoping to make it smaller and add two new sensors 1. A sonar system (Not severely powerful, but good enough for 2 meter view ahead in zero visibility conditions) 2. an extendable probe w/ one of those "screw picker upper" gripping hands at the tip. BugEye II is designed to be smaller than the original BugEye, I thought of outfitting BugEye II with some sort of radio control... like maybe WiFi control (I saw a neat little appmod that can be used for this) or some other type of radio control, but I'm uncertain about the reliabilty of transmitting through water at anything beyond the most minor of depths.
>
> Design Flaws Found With BugEye (For anyone else that wants to learn from its demise)
> 1. Teflon is a wonderful building material, but it's not good for mounting things onto, you need to find things to anchor to. It's kind of like putting a screw in drywall without hitting a stud.
> 2. I didn't take into account the length of my tether, if you're tether is over 100` you need to design for the reduced power you'll get through the lines.. ESPECIALLY when your working with such low power equipment that goes into robotics to begin with.
> 3. I just screwed my teather into the coax plug and the power cord was snapped in, next time I'll put an eye hook on or something so I can hook it up to that before I plug it in.
>
> And that is my question and progress update for the day.
>
>
> George H. Slaterpryce III
>
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