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edpav8r(at)yahoo.com
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 Posted: Sun Feb 09, 2014 2:51 pm Post subject: Voltage/Current Measurement & Logging |
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Bob & Listers,
There's been some talk on here in recent weeks about measuring and logging voltage and current in aircraft buses for diagnostic purposes. I came across a crowd-funding campaign for an interesting device that looks like it might be just the ticket for this kind of measurement, so I thought I'd pass it along:
https://www.dragoninnovation.com/projects/34-mooshimeter
Eric
[quote][b]
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FatBoy
Joined: 21 Oct 2012
Posts: 19
Location: Nashville, TN
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| Posted: Sun Feb 09, 2014 4:10 pm Post subject: Voltage/Current Measurement & Logging |
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very cool
On Feb 9, 2014, at 4:50 PM, Eric Page wrote:
[quote]Bob & Listers,
There's been some talk on here in recent weeks about measuring and logging voltage and current in aircraft buses for diagnostic purposes. I came across a crowd-funding campaign for an interesting device that looks like it might be just the ticket for this kind of measurement, so I thought I'd pass it along:
https://www.dragoninnovation.com/projects/34-mooshimeter
Eric
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href="x-msg://2197/3D%22http://www.matronics.com/Navigator?AeroElectric-List%22">http://www.matronics.com/Navigator?AeroElectric-List
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nuckolls.bob(at)aeroelect
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| Posted: Mon Feb 10, 2014 3:29 pm Post subject: Voltage/Current Measurement & Logging |
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At 06:08 PM 2/9/2014, you wrote:
| Quote: | very cool
On Feb 9, 2014, at 4:50 PM, Eric Page wrote:
| Quote: | Bob & Listers,
There's been some talk on here in recent weeks about measuring and logging voltage and current in aircraft buses for diagnostic purposes. I came across a crowd-funding campaign for an interesting device that looks like it might be just the ticket for this kind of measurement, so I thought I'd pass it along:
https://www.dragoninnovation.com/projects/34-mooshimeter
Eric
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There's been an explosion in recent years for
low cost data acquisition products. I bought
my first computer driven measuring tool back
in '99 and used it to gather 8, 12-bit
channels of data at 1000 samples per second.
The thing ran off the parallel printer port
of my laptop. It cost me about $100 and
I used it substitute for a multi-killobuck
instrumentation package on a jog I was
doing at Beech.
The thing had NO graphical user interface,
I had to plot data with autocad and analyze
data with programs I wrote.
You can see the critter hanging off the back
of my laptop in this article . . .
http://tinyurl.com/kjuhl67
The price of hardware has continued to fall
while the utility of user interfaces has
grown. I ordered two of these guys a couple
weeks ago.
http://tinyurl.com/m68rbdl
The hardware is simple and easily adapted to
the task of characterizing current draw of
strobes that like to burn switches. But the
major driver for buying this was the GUI that
appears to be quite capable.
We're all going to learn more about this
product with some hands-on gathering of
data off List-member airplanes.
Bob . . .
[quote][b]
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Eric M. Jones
Joined: 10 Jan 2006
Posts: 565
Location: Massachusetts
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| Posted: Tue Feb 11, 2014 6:04 am Post subject: Re: Voltage/Current Measurement & Logging |
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That Mooshimeter is sweet.
My own two cents:
You could get just about the same thing with a tiny digital camera set to record video, and the actual meter. This has an additional advantage of being able to put yourself in odd places to see non-electrical events as well.
Let's say you want to figure out where a fuel leak is that only occurs at certain times or flight attitudes, etc., or you want to look under the cowling in flight, or you want a totally visual fuel gauge. Video and data recording that used to take big bux is now available to everyone for cheap money.
Black box? An over-the shoulder camera watching the panel (and windscreen), might be a great investment...Hell, you might even sell the video.
Every pilot remember things he would have loved a video of.
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_________________
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
emjones(at)charter.net |
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