Communications – electrical: acoustic wave systems and devices – Signal transducers – Receivers
Reexamination Certificate
2006-04-25
2006-04-25
Lobo, Ian J. (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Signal transducers
Receivers
C367S174000, C367S176000, C367S178000, C181S122000
Reexamination Certificate
active
07035167
ABSTRACT:
A seismic sensor, has a case, a pre-charged, non-conductive membrane located between two plates that form a capacitor and accommodated inside the case, with one of the plates being immovable relative to the case and the other of the plates being movable relative to the one plate under the action of seismic activity of a medium in which the sensor is located, so that the capacitor produces an electrical signal responsive to the seismic activity, and a mass increasing element associated with the movable plate so as to increase mass of the movable plate and therefore enhance oscillations of the movable plate under the action of the seismic activity.
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Goldburt Tim
Pakhomov Alexander
General Phosphorix
Lobo Ian J.
Zborovsky I.
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