Resonator device
AssigneeStc PLC
InventorJohn C. Greenwood
Life of this patent
Estimating the term…
Abstract
A strain or pressure responsive transducer comprises a pair of elongate beam resonators arranged end to end and provided with a flexible coupling therebetween. The arrangement oscillates e.g. in a double see-saw or butterfly mode. The transducer is disposed on a diaphragm whereby strain may be transmitted to the oscillatory system. The frequency of oscillation is a function of this strain.
Claims5
A strain or pressure responsive mechanically resonant sensor device, the device including a rigid frame on which a flexible diaphragm is supported, first and second elongate supports extending from said diaphragm and disposed in a parallel configuration, first and second elongate laminar members disposed in a common plane end to end between the supports and each supported adjacent its transverse axis lying in said plane by filaments extending from the supports, a flexible coupling linking the adjacent ends of the elongate members, and optical means for applying energy to the coupling whereby, in use, the elongate members are driven into oscillation each in a plane perpendicular to said common plane and to its transverse axis and each in an identical oscillatory mode at its natural resonant frequency.
Dependencies are inferred from the claim text.