Dual mode measurement system with quartz crystal microbalance

Details Dual mode measurement system with quartz crystal microbalance Dual mode measurement system with quartz crystal microbalance

2008-04-23

2010-10-19

Saint Surin, J M (Department: 2856)

Measuring and testing

Vibration

Resonance, frequency, or amplitude study

C073S054240, C073S054410, C073S579000

Reexamination Certificate

active

07814795

ABSTRACT:
A dual mode measurement system with quartz crystal microbalance (QCM) is provided, which includes a quartz sensing component, a first measurement circuit, a second measurement circuit and a switch unit. When the first measurement circuit is selected through the switch unit, the first measurement circuit and the quartz sensing component form an oscillation circuit and output a resonance signal. When the second measurement circuit is selected through the switch unit, the second measurement circuit outputs a frequency scanning signal to scan the quartz sensing component, so as to output an impedance sensing signal.

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