I want to make an LC meter using Microcontroller

Discussion in 'The Projects Forum' started by thannara123, Jan 10, 2015.

  1. thannara123

    Thread Starter New Member

    Jan 9, 2011
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    May i get The basic ideas for it
    And may i get some useful Links
     
  2. urb-nurd

    Member

    Jul 9, 2014
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  3. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,546
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    thannara123 likes this.
  4. DickCappels

    Moderator

    Aug 21, 2008
    2,653
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    Hey! Give me a chance to plug one of my web pages... :)

    This one does not require a precision inductor and needs no relay. A stable 1,000 pf capacitor is needed, preferably with a 1% tolerance, the capacitance is used to calibrate the inductor.

    Not believing PIC or AVR is superior overall, I point out that this project uses an AVR controller.

    http://www.cappels.org/dproj/EvenBetterLCMeter/Even_Better_LC_Meter.html

    One thing that many people discover about the oscillators of the kind used in the links that MaxHeadRoom provided and in my meter, some after making the PC boards, is that if the inductor has too high of a resistance, the accuracy will suffer when measuring large value capacitors. Whichever of the versions you make, get the lowest resistance you can.
     
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