nuckolls.bob(at)aeroelect
Guest
|
 Posted: Sun Oct 09, 2022 5:44 pm Post subject: Current instrumentation for flight testing. |
 |
|
Dan,
Don't recall if I've sent you this suggestion yet so just
in case . . .
There'a a dirt-cheap line of hall effect current sensors
you might consider for AC measurements on the
alternator study.
https://tinyurl.com/2gvhny4z
These can be used for either AC or DC measurements. They
feature a VCC/2 output for zero current. Hence, DC currents
are resolved by subtracting 2.5V from output. For AC, you
capacitively couple an AC voltmeter to the output. Use
a TRUE RMS reading voltmeter . . . waveform of the AC current
under light loads will be really wonky so an averaging
meter would suffer considerable error.
You can run a 'scope on the output along with the voltmeter.
The output waveform will be a good representation of
the signal in question.
I used to have a few of these laying around but can't
put my hands on 'em at the moment. May have left them
on the last job. I like to keep some around 'cause they're
so easy to use and the price is certainly right!
Bob . . .
Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
