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US 2012/0069708 A1Published application
Apparatus and method for generating broad bandwidth acoustic energy
AssigneeBaker Hughes Incorporated
InventorDwight W. Swett
Life of this patent
Estimating the term…
Abstract
An acoustic transmitter includes: an acoustic diaphragm configured to transmit acoustic waves into a medium; a piezoelectric actuator assembly configured to deform in an axial direction in response to an applied electrical signal; and a highly incompressible elastic material disposed between the piezoelectric actuator and the acoustic diaphragm and configured to transmit pressure waves to the acoustic diaphragm in response to motion of the piezoelectric actuator.
Claims20
An acoustic transmitter comprising:
- an acoustic diaphragm configured to transmit acoustic waves into a medium;
- a piezoelectric actuator assembly configured to deform in an axial direction in response to an applied electrical signal;
- and
- a highly incompressible elastic material disposed between the piezoelectric actuator and the acoustic diaphragm and configured to transmit pressure waves to the acoustic diaphragm in response to motion of the piezoelectric actuator.
1 more element
A method for estimating a property in a borehole penetrating an earth formation, the method comprising:
- conveying a carrier through the borehole, the carrier comprising at least one acoustic transmitter, the acoustic transmitter including:
- an acoustic diaphragm configured to transmit acoustic waves into a medium;
- a piezoelectric actuator assembly configured to deform in an axial direction in response to an applied electrical signal;
- and
- a highly incompressible elastic material disposed between the piezoelectric actuator and the acoustic diaphragm and configured to transmit pressure waves to the acoustic diaphragm in response to motion of the piezoelectric actuator.
- transmitting an acoustic wave into at least one of the borehole and the formation via the acoustic transmitter;
- and
- receiving the acoustic wave using an acoustic detector to estimate the property.
5 more elements
Dependencies are inferred from the claim text.