PIEZOELECTRIC RESONANT SHUNT DAMPING FOR PHASE NOISE REDUCTION

The system and method for phase noise reduction and/or vibration reduction in assemblies using piezoelectric passive resonant shunt damping or active vibration cancellation/compensation techniques. In some cases a circuit card or similar structure comprises an embedded piezoelectric device to reduce...

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Bibliographische Detailangaben
Hauptverfasser:	Sharp, Shawn P, Pena, Mike, Moulton, Allison, Affleck, Maxwell L
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ELECTRICITY ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING SHOCK-ABSORBERS SPRINGS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The system and method for phase noise reduction and/or vibration reduction in assemblies using piezoelectric passive resonant shunt damping or active vibration cancellation/compensation techniques. In some cases a circuit card or similar structure comprises an embedded piezoelectric device to reduce the effects of vibration on any sensitive device or component thereon. The system has a resonant shunt circuit or other control circuit to provide electrical loading to the piezoelectric device and may be single frequency mode or multimodal. The system may also be adaptively controlled by a microprocessor or the like, so that the vibration sensitive devices are monitored and controlled over time to extend the life of the device.