Don't know if any of you can read this powerpoint attachment...it's
something I played with over the past couple of years to determine the
performance of rubber motors on a "load/torque/winds/etc" versus time.
My thinking was to avoid flight testing every motor to optimize prop
performace. Then again, it would be parametric over time and rubber batches.
It's not too polished and complete, but very preliminary.
Any thoughts?
Rick Pangell
Editor of "The Max-Out" Newsletter of
The Magnificent Mountain Men FF Club of Colorado
In a message dated 4/21/2010 6:02:26 P.M. Mountain Daylight Time,
tim.haywardbrown_at_gmail.com writes:
> If I just would find a load sensor,
> that I could attach to a handheld computer;
Hi Tapio
maybe you could adapt / pull apart a cheapie digi-gem scale like this one:
Digital Jewelry Diamond Pocket Gem Scale
http://cgi.ebay.com.au/0-001g-20g-ct-Digital-Jewelry-Diamond-Pocket-Mini-Sca
le_W0QQitemZ250589631004QQcmdZViewItemQQptZAU_Business_Industrial_Medical_Sc
ientific_Equipment2?hash=item3a584e521c
I have one which cost about $22 Australian including postage. It reads
0.001g - 20g (or about 0.7oz max) which may not be enough. It switches
easily between Oz/grams. There are heaps of others if you look around. I'm
sure calibration is not accurate as the better ones of course - but might be
worth experimenting with. I read the info on the digital torque meter with
interest also and will definately give it a go myself! Would be very
interested in how you link to a computer to create torque graphs...
Tim
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Received on Wed Apr 21 2010 - 17:12:02 CEST