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Re: Recent s.s.t.c work



Original poster: Terry Fritz <vardin@xxxxxxxxxxxxxxxxxxxxxxx>

Hi Ken,

At 12:12 PM 10/16/2005, you wrote:
...........
2.  Terry:  "I just tested mine like this:

<http://hot-streamer.com/temp/CurrentShunt-test.jpg>http://hot-streamer.com/temp/CurrentShunt-test.jpg":

Your shunt looks exactly like mine. There probably is some skin effect but I'd not think that would be inductive, so it would merely cause an apparent increase in the indicated current. That the shape of the wave in my "5" image is essentially the same as that in the 5A simulation image seems indicative to me that it is reasonably acurate. (And in that 5A image, I rather wish I'd thought to change the scale of one of the curves so that they did not overlap.)
...

I checked my shunt at DC and it was dead on!! I suspect it has nickel or some other high frequency "not" friendly metal in the resistive part. I thought there might be micro cracks or something since it is very "used"... The resistor does not attract a magnet at all...

Apparently, you got a "good one" :-)))

Cheers,

Terry