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Thread: Measuring 0.001 ohms with a low cost DVM and a "Resistance Amplifier"

  1. Feb 13, 2013, 09:25 PM #1
    rgsparber
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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

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

    Jon (Feb 14, 2013), kbalch (Feb 14, 2013)
  3. Feb 14, 2013, 02:34 PM #2
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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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