The Quartz Crystal Operating in Contact with a Liquid

The Quartz Crystal Operating in Contact with a Liquid 

When a quartz crystal resonator operates in contact with a liquid, the shear motion of the surface generates motion in the liquid near the interface. The 

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The response of the QCM at the solid/liquid interface can be found by matching the stress and the velocity fields in the media in contact. It is usually assumed that the relative velocity at the boundary between the liquid and the solid is zero. This corresponds to the nonslip boundary condition. Strong experimental evidence supports this assumption on the macroscopic scales [56,57]. In this case the frequency shift. A/, and the width of the resonance, F/, can be written as follows [10,11]  

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C. The Quartz Crystal Operating in Contact with a Liquid 16... 

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