Thank you Jay. You and George have saved me a lot of grief. --Doug
In a message dated 10/18/2006 10:32:17 PM Central Daylight Time, bottomgun@mindspring.com writes:
Harbor Branch ran pressure tests on IC chips in various formats in the early 80’s. They were looking to use an oil-filled electronics compartment for their ROV to compensate for pressure exposure. Some performed satisfactorily, some displayed erratic functionality, and some out right failed with packaging cracking, exploded chips upon surfacing, etc. Potting was also tested.
R/Jay
Respectfully,
Jay K. Jeffries
Andros Is., Bahamas
It is the mark of an educated mind to be able to entertain a thought without accepting it.
- Aristotle
From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of DJACKSON99@aol.com
Sent: Wednesday, October 18, 2006 10:31 PM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Pressure Compensation of Electronics
Absolutely right, failure does breed knowledge, it's best when it's someone else do the experimenting so that you for that. Did you ever try potting the circuits in resin? Based on your knowledge, do you think it would do much good? Really, I need it to do a LOT of good, because my goal is 60 atm :) --Doug
In a message dated 10/18/2006 5:46:28 PM Central Daylight Time, gslaterp@hotmail.com writes:
The electronics may or may not survive depending on your equipment. Most CCD cameras will survive, the board may survive (I don't know about that specific board) BUT I wouldn't bet on it. Most off the shelf uncompensated small ICs will crush at about 2atm in my experience, Especially reed switches and some capacitors.
This is all been found out by the many failures of BugEye I (Yeah, that project just did wonders didn't it. But hey, failure breeds knowledge)
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