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Re: [PSUBS-MAILIST] Re: pressure sensors
I'd be happy to design a pic processor based display to drive a digital readout. It should be fairly trivial (for me ;-)). I'll get a rough price estimate for the parts in the next few days...I did notice in the specs though that the "window" to the transducer should be cleaned if used in salt water to prevent salt crystals from forming.
Jon...re:the 30 bar rating...I don't think too many of us are planning to build subs with a depth rating exceeding 1000 ft :-)
Al
----- Original Message -----
From: andy goldstein <andy.goldstein@videoray.com>
To: personal submersibles <personal_submersibles@psubs.org>
Sent: Tue, 3 Nov 2009 19:56:15 +0000 (UTC)
Subject: Re: [PSUBS-MAILIST] Re: pressure sensors
VideoRay uses the intersema part.
We mount the sensor into a fitting and pot it for the wet end.
There is then a ribbon cable coming out that would have to go to some
sort of computer for a display. For those that care, it is an SPI signal.
I think we may be selling the potted units at some point. I'll let you
know when and if we get pricing. I'd guess ~$100 or so, but not sure.
If someone wanted to just use that sensor and hook it up to something
else I'd be happy to help however I could.
-a
vbra676539@aol.com wrote:
> Looking at the current prices, I'd say we (psubs, or maybe an interested
> group) ought to finance a white paper on manufacturing our own, and then
> produce a box full and put them on the market thru our own web page.
> Vance
>
>
> -----Original Message-----
> From: andy goldstein <andy.goldstein@videoray.com>
> To: personal_submersibles@psubs.org
> Sent: Tue, Nov 3, 2009 1:24 pm
> Subject: Re: [PSUBS-MAILIST] Re: Stiffiners on Heads
>
> Tritech have nice altimeters:
> http://www.tritech.co.uk/products/products-micron-echosounder.htm
>
> Desert Star has a very accurate pressure sensor:
> http://www.desertstar.com/Products_category.aspx?intProductCategoryID=6
>
> Paroscientific also has very nice ones:
> http://www.paroscientific.com/Depthsensors.htm
>
> If you want to build your own depth sensor,
> http://www.intersema.ch/products/guide/calibrated/ms5535-30c/
> are a good start.
>
> -a
>
>
> landnseawelding wrote:
> > I am looking for a digital depth sounder and depth gauge that
> register > up to 600 feet at least for my K-350. I have found some depth
> gauges > that read PSI but would prefer feet if possible.
> > > Rick P.
> > ----- Original Message ----- From: "Jon Wallace" <jonw@psubs.org
> <mailto:jonw@psubs.org>>
> > To: <personal_submersibles@psubs.org
> <mailto:personal_submersibles@psubs.org>>
> > Sent: Tuesday, November 03, 2009 3:53 AM
> > Subject: Re: [PSUBS-MAILIST] Re: Stiffiners on Heads
> > > >>
> >> Jens,
> >>
> >> Thanks for the links. I will work on adding these tonight.
> >>
> >> Jon
> >>
> >>
> >> Jens Laland wrote:
> >>> Jon
> >>>
> >>> ** I have added various links to the web site for ABS and ASME
> including
> >>>
> >>> Here are some links to the Germanischer Lloyd AG (Rules &
> Guidelines >>> 2008)
> >>> that may be of some interests, also.
> >>>
> >>> The main gate to the documentation (in english)
> >>>
> >>> http://www.gl-group.com/infoServices/rules/pdfs/english/glrp-e.pdf
> >>>
> >>> Or, if you want to jump straight to
> >>>
> >>> Section I - Ship Technology
> >>> Part 5 - Underwater Technology
> >>> Chapter 2 - Manned Submersibles
> >>>
> >>> then use this link
> >>>
> >>>
> http://www.gl-group.com/infoServices/rules/pdfs/english/schiffst/teil-5/kap-2/englisch/inhalt.pdf
> >>>
> >>>
> >>> In addition, I also find this part of great use
> >>>
> >>> Section III - Naval Ship Technology
> >>> Part 2 - Sub-Surface Ships
> >>> Chapter 1 - Submarines
> >>>
> >>>
> http://www.gl-group.com/infoServices/rules/pdfs/english/marine/teil-2/kap-1/englisch/inhalt.pdf
> >>>
> >>>
> >>> And finally, here is two vital short cuts:
> >>>
> >>> Annex A : Design of the Pressure Hull
> >>>
> >>>
> http://www.gl-group.com/infoServices/rules/pdfs/english/marine/teil-2/kap-1/englisch/anhanga.pdf
> >>>
> >>>
> >>> Annex B : Fabrication Tolerances for the Pressure Hull
> >>>
> >>>
> http://www.gl-group.com/infoServices/rules/pdfs/english/marine/teil-2/kap-1/englisch/anhangb.pdf
> >>>
> >>>
> >>> Best regards,
> >>> Jens Laland
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
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> >>>
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> >>>
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> > > > > >
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> > The personal submersibles mailing list complies with the US Federal
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> -- Andy Goldstein
> Director Software Engineering
> VideoRay LLC
> 580 Wall Street
> Phoenixville PA 19460
> Tel: 610.458.3000 ext 3020
> Cell: 401-490-1707
> Skype: videoray.ag
> http://www.videoray.com <http://www.videoray.com/>
>
>
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--
Andy Goldstein
Director Software Engineering
VideoRay LLC
580 Wall Street
Phoenixville PA 19460
Tel: 610.458.3000 ext 3020
Cell: 401-490-1707
Skype: videoray.ag
http://www.videoray.com
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--
Al Secor
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