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US 2007/0167764 A1Published application
Impedance matching for ultrasound phased array elements
AssigneeThe Brigham and Women's Hospital, Inc.
InventorKullervo Hynynen
Life of this patent
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Abstract
A system includes a transducer configured to emit ultrasound in response to receiving an electrical signal from a driving circuit. The transducer includes a first dimension that determines a frequency of the ultrasound and a second dimension that determines an impedance of the transducer. The frequency is independent of the second dimension
Claims20
A system comprising:
- a transducer configured to emit ultrasound in response to receiving an electrical signal from a driving circuit, the transducer having:
- a first dimension that determines a frequency of the ultrasound;
- and
- a second dimension that determines an impedance of the transducer, wherein the frequency is independent of the second dimension.
1 more element
A method for manufacturing a transducer component that emits ultrasound at a selected frequency, the method comprising:
- adjusting a first dimension of a piezoelectric component to cause the piezoelectric component to emit sound at the selected frequency;
- and
- adjusting a second dimension of the piezoelectric component to affect an impedance of the piezoelectric component.
An ultrasound array comprising:
- a plurality of transducers each configured to emit ultrasound in response to receiving an electrical signal from a driving circuit, each of the plurality of transducers having:
- a first dimension that determines a frequency of the ultrasound;
- and
- a second dimension that determines an impedance of the transducer,
- wherein the frequency is independent of the second dimension;
- and
- a substrate attached to the plurality of transducers.
4 more elements
Dependencies are inferred from the claim text.