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Re: [PSUBS-MAILIST] Pressure compensation



Yeah, the latter would be better too because then you could probably forget
the oil as the field would be imbedded in some kind of epoxy resin.
Big Dave
-----Original Message-----
From: Jon Hylands <hylands@ibm.net>
To: personal_submersibles@psubs.org <personal_submersibles@psubs.org>
Date: Sunday, August 13, 2000 10:04 PM
Subject: Re: [PSUBS-MAILIST] Pressure compensation


>On Sun, 13 Aug 2000 18:46:45 -0500, David Buchner <buchner@wcta.net> wrote:
>
>> Seriously, how does this magnetic coupling work? Is the whole motor
inside, and then there's a magnet on the end of the shaft which turns a
magnet outside the housing attached to the propellor? Or does it work like
an aquarium pump I used to have -- which had the staionary magnetic coil
part of the motor sealed in epoxy inside the case, with the case "donut"
shaped so that it wrapped around the shaft on the out/water-side of the
case?
>
>Either way works. I suspect that the latter is the way most do it, as it
>would make the thruster easier to streamline.
>
>Later,
>Jon
>
>--------------------------------------------------------------
>   Jon Hylands      Jon@huv.com      http://www.huv.com/jon
>
>  Project: Micro Seeker (Micro Autonomous Underwater Vehicle)
>           http://www.huv.com
>