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Parallel or Serial Resonance Frequency


I'm just writing some theory about QCM in my thesis. Now I wonder if the openQCM is actually driven at the parallel or at the serial resonance frequency.



  • Hi schurli111 ,
    openQCM use a quartz driver (SN74LVC1GX04) that can nominally operate between few KHz up to 28 MHZ. With external component it is a true pierce scheme circuit that "link" to the parallel resonance of every quartz in the described frequency range.
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