Detection and measurement of mass change using an electromechanical resonator
US8809065B2 · kind B2 · utility
3Cited by
1References
12Claims
0Family size
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Key dates
| Filing date | May 19, 2010 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Nov 17, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/487
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.