Welcome to The SHOCK Show #8. In this episode, I talk about why capacitance measurement of piezoelectric devices, namely crystal resonators, are not affected by the sample holder when measuring capacitance.

At the off-resonance frequencies used to measure capacitance, stiffness dominates the mechanical response of the piezo. Because the sample holder stiffness is small in comparison to that of the piezo, there is little effect on the measurement from the sample holder. The same cannot be said about resonance, where both mass and stiffness affect the response.

Read on or watch the episode here: https://youtu.be/zAVU1niDfd0