voltage measurement

  1. cyrilseban098

    My digital multimeter starts fluctuating while I bring it near to my started bike

    My digital multimeter starts fluctuating while I bring it near to my started bike even if the probes are not connected to any where .I can't read any value during that time.Therefore I cannot check my bike electrical circuit.My multimeter shows correct values when I connect to home ac supply...
  2. roadey_carl

    ZMPT101B Voltage measurement

    Hello, Has anyone ever used one of these ZMPT101B current transformers for measuring AC voltage with a microcontroller? I’m struggling to get any linearity with it at all and I can’t understand why. Here is what I’m doing: I’m using a Variac which can produce voltages from 1vac – 330vac If I...
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