Quartz Crystal Microbalance (QCM)

*Sensor = Quartz Crystal with electodes.

* Tuned oscillator with frequency inversely proportional to mass between electrodes plus mass on them.

* Follows the Sauerbrey Equation:

change in frequency,

deltaf= (-2.26 x 10^-6cm²g^-1s)(initial frequency)²(change in mass)

* Experiment