Acoustic resonating devices and assemblies
AssigneeUniversity of Pittsburgh—Of the Commonwealth System of Higher Education
InventorsSung Kwon Cho, Wenbo Li
Life of this patent
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Abstract
A device includes a body. The body includes a cavity therein. A diaphragm separates the cavity from an environment surrounding the device to enclose a gas within the cavity. One or more extending members are attached to and extend outwardly from a surface of the diaphragm. The cavity resonates upon application of ultrasound energy thereto to cause movement in the diaphragm and the one or more extending members.
Claims21
A device, comprising a body, the body having a cavity therein, a diaphragm separating the cavity from an environment surrounding the device to enclose a gas within the cavity, and one or more extending members attached to and extending outwardly from a surface of the diaphragm, the cavity resonating upon application of ultrasound energy thereto to cause movement in the diaphragm and in the one or more extending members.
An assembly, comprising:
- a plurality of devices which are attached, each of the devices, comprising a body, the body having a cavity therein, a diaphragm separating the cavity from an environment surrounding the device to enclose a gas within the cavity, and one or more extending members attached to and extending outwardly from a surface of the diaphragm, the cavity resonating upon application of ultrasound energy thereto to cause movement in the diaphragm and in the one or more extending members, each of two or more of the plurality of devices being attached in different orientations and having different resonance frequencies to achieve controlled steered motion via streaming flow and propulsion in a liquid in which the assembly is immersed via control of applied ultrasound energy.
A method of generating streaming, comprising:
- providing one or more devices, each of the one or more devices comprising a body, the body having a cavity therein, a diaphragm separating the cavity from an environment surrounding the device to enclose a gas within the cavity, and one or more extending members attached to and extending outwardly from a surface of the diaphragm, the cavity resonating upon application of ultrasound energy thereto to cause movement in the diaphragm and in the one or more extending members,
- immersing the one or more devices in a liquid, and
- applying ultrasound energy to cause resonance in the cavity of the one or more devices.
Dependencies are inferred from the claim text.