Quartz Crystal Microbalance with damping

Technology Background in Applications

As the QCM-D applications grow everyday, the technology brings users new experience and insights to their experiments. A crucial part of applying QCM-D is the interpretation of signals. It's important to understand the correlation between frequency/damping and the interaction on the sensor surface. We present here some examples to help you learn the technology background in various applications.

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Principle of QCM-D

The measuring principle of quartz sensor technique is based on the precise oscillation of the quartz sensors at their resonant frequency when an alternating voltage is applied. Depositions at the sur­face or wetting of the surface result in a frequency shift and – depending on the material properties – additionally in a damping of the oscillation. Both, the frequency shift and the damping (dissipation) of the oscillation are cap­tured with the qCell / qCell T instrument with high resolu­tion and in real time.

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