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Old 07-03-2009, 10:52 PM
pneuphysics pneuphysics is offline
Join Date: Jun 2009
Posts: 44
Xpskid -

1vdcx10 probe so you are seeing 10vdc between squares. More later

Ok Here is the RPM test I promised. I used a hall effect sensor to pick up revolutions and ran the output through a nand gate to clean it up then measured it on my scope which has an integrated freq meter. Running at 1800 rpm no load. When the coils are shorted it picks up 48 rpm. I expected more but I believe for my proof of concept 1st. unit build it tells me to keep trying with a more accurately machined unit, maybe slightly different geometry. I am very pleased and excited to move forward. Hope this helps someone.

Take care,
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