Hi, all:
I need your advice on current measurement. My problem is that I need to
measure the current VERY VERY precisely. This is AC current whose magnitude
will be between 50-100A. I thought that a clip-on ammeter would be
sufficient but its accuracy is about +-20% due to poor calibration. I have
well calibrated shunt resistor but its rating is only 5A. But I need to
have at least 50 Amps in the circuit. I do not have the means to
recalibrate the clip-on ammeter and frankly speaking an not sure how since
I do not have a well-calibrated current source. At this point of time, I am
running out ideas and was wondering if anybody can steer me in the right
direction or inform me of a usual techniques that may be employed in the
cases such as mine.
Thank you,
Edgar Lobachevskiy
Physics Dept
University of Hawaii
PH: 808-956-2949
FAX: 808-956-7107
- posted
17 years ago