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    rgsparber's Avatar
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    Measuring 0.001 ohms with a low cost DVM and a "Resistance Amplifier"

    This circuit turns any low cost Digital Volt Meter into a milli ohm meter. The DVM reads 1 mV for each milli ohm seens by the circuit. Normally this would take a 1 amp test current but the Resistance Amplifier does it with only 10 mA. If you are interested, please see

    http://rick.sparber.org/electronics/ramp.pdf

  2. The Following 2 Users Say Thank You to rgsparber For This Useful Post:

    Jon (02-14-2013), kbalch (02-14-2013)

  3. #2
    Jon
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    Thanks rgsparber! This one's been added to our Electrical category, and of course to your homemade tools page: Rick Sparber's Homemade Tools. Your receipt:



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