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What about something like this then?
These guys make pressure transducers/transmitters for
boilers, which operate in a nastier environment than you plan on putting your
ROV in.
Assuming your ROV is operated on a cable you could get the
matching gauge mounted on your instrument panel and again mark up the face to
read in depth instead of PSI. A call to a gauge manufacturer wouldn't be a waste
of time here.
Todd
From:
owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of George
Slaterpryce
Sent: Thursday, February 23, 2006 10:25 AM
To:
personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Preasure
Gauge
I need the gauge to report back electronicly so an
analog gauge would be good only if I had a video camera that looked at it
constantly.
George Slaterpryce
----- Original Message -----
Sent: Thursday, February 23, 2006 10:20
AM
Subject: RE: [PSUBS-MAILIST] Preasure
Gauge
I'm sure this a subject that has come up many times
however I'm new at this. Could you not simply use a mechanical pressure gauge
and recalibrate the dial to read in feet instead of PSI? I have a mechanical
pressure gauge on my old Jeep that uses a small tube to the oil pump to read
the pressure. The tube is always full of oil and it doesn't foul the gauge so
I can't imagine that water would either. Obviously an oil pressure gauge from
an automobile wouldn't work because it only reads uo to about 80 PSI but with
some research I'm sure you can find a gauge that reads up to whatever PSI you
expect to encounter and beyond.
I'm looking to make myself some sort of preasure
gauge so I can calculate depth, but the best Idea I can come up with is to
embed a Preasure sensor in a ball of silicon and mount it to the outside of my
preasure hull, I'm thinking that the silicon will transfer preasure to the
sensor evenly as well as protect it from water damage. The biggest problem
with that would be the wires coming out of the silicon ball causing rippage if
any stress was put on them, thus allowing water in however minute amount to
get to the sensor, so I'd have to make some sort of cradle for it so it can't
move... maybe epoxy it onto a machine brass craddle that can be mounted
to the preasure hull which I can then run the wires through so I can connect
the Preasure sensor to the MC this way I can avoid loose wires. Another
problem is would the silicon transfer the preasure so I could get an accurate
reading.
Am I over thinking this, is there some simple
solution I'm over looking?
Thanks
George H. Slaterpryce III
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