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Unread 14-12-2013, 11:16
yash101 yash101 is offline
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Re: MicroControllers at competitions

Quote:
Originally Posted by Ether View Post
It's not practical. .025 ohms will have a significant effect on motor torque.

25mOhm is .025 ohms.


A clamp-on DC ammeter uses a Hall Effect device to sense the static magnetic field created by the DC current.


Sorry. I confused mOhms with uOhms!

I think it would be better to skip the resistor and bring along a foot of gauge 8 wire. That aught to do it without over-dropping the voltage.

Using a hall-effect sensor is a different way of thinking about it! I was thinking about measuring current by creating a transformer, with the second winding as a coil around the main wire!
 


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