Transcription of uCurrent - A professional precision current adapter …
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uCurrent - A professional precision current adapter …
The current a professional precision current adapter for Multimeters By David L. Jones (Copyright 2010 David L. Jones Freely distributable in the original unaltered PDF format ONLY) A current adapter for multimeters? But don t most multimeters already have current measurement ranges? I hear you ask. Well, yes, they do of course. But most multimeters, be they a no-name $10 hardware store throw-away model, or a $1000 highly accurate brand name meter, all suffer from two rather annoying issues with their current measurement ranges - burden voltage and reduced accuracy. Burden voltage The biggest problem with current measurement ranges is called burden voltage .
At small displayed currents the burden voltage is usually not an issue, but at larger displayed currents (relative to Full-Scale) the burden voltage can be very high, even in the order of several volts!
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