Detection and Measurement of Mass Change Using an Electromechanical Resonator
A change in impedance of a electromechanical resonating sensor is utilized to detect and/or measure a change in mass accumulated on the sensor. The impedance is monitored at a fixed frequency. The fixed frequency may be at or near the resonance frequency of the sensor. In various configurations, the sensor comprises a quartz crystal microbalance sensor or a piezoelectric cantilever sensor.
MUTHARASAN RAJAKKANNU [US]; XU SEN [US]; SHARMA HARSH [US]; JOHNSON BLAKE N [US]; LAKSHMANAN RAMJI S [US]
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