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    This is the technique overview to obtain differential conductance. Now for the question:

    I am using the reference ac signal from the lock in amplifier and dc from a dc source meter; how do I combine the ac and dc together???
    Is a coupling capacitor the answer??

    Please help!!!
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  • r6rammy

    Member • Dec 17, 2008

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  • sauravgoswami

    Member • Dec 17, 2008

    If you combine AC and DC together there is possibility your current and volatge might lag or lead and also frequency plays an important factor....u can use a coupling capacitor...i have to check out if there are any other methods!!!
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