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Inductance/capacitance meter off on the measurements

Discussion in 'General Electronics Discussion' started by aidan, Apr 2, 2012.

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  1. aidan

    aidan

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    Jul 15, 2011
  2. jackorocko

    jackorocko

    1,284
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    Apr 4, 2010
    what is the tolerance of the inductor? 10% is 68

    They do come in 20% tolerances as well
     
    Last edited: Apr 3, 2012
  3. aidan

    aidan

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    0
    Jul 15, 2011
    Im not sure of the tolerance but I never thought of that....
    thanks for the suggestion! much appreciated!
    I feel better about the meter already.
     
  4. aidan

    aidan

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    Jul 15, 2011
    Uh oh... never mind, I measured three more and they were all at least 80 micro henries below what they should be... one was 560.... damn.
     
  5. jackorocko

    jackorocko

    1,284
    1
    Apr 4, 2010
    20% of 680 still leaves you at 544, so that is still within 20% tolerance. Would be better to know for a fact what the specs of the part is you are measuring before calling it crap.

    but the ebay listing says they will make it right, prove to him it is junk and he will probably hook you up. Wish you better luck on the next one
     
  6. jackorocko

    jackorocko

    1,284
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    Apr 4, 2010
    Since it is made in china and they claim 1% tolerance, I wonder how many 1% tolerant components they use on the device itself?
     
  7. aidan

    aidan

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    Jul 15, 2011
    yeah, they are 10%, just looked on my ebay purchase history.
     
  8. aidan

    aidan

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    Jul 15, 2011
    also they are all measuring consistently under 600 microHenries
     
  9. aidan

    aidan

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    0
    Jul 15, 2011
    Last edited: Apr 3, 2012
  10. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,359
    2,755
    Jan 21, 2010
    It's also not beyond the realms of possibility that your measuring device is inaccurate, or that it measures the impedance at an inappropriate frequency, or that stray capacitance is wielding an effect.

    Also Joseph would not like you to spell is surname with an initial lower-case letter.
     
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