Flexible diagnostic patches for structural health monitoring
First Claim
1. A device for monitoring structural health conditions of an object, comprising:
- a bottom substrate layer;
an electrical connection layer including a pair of electrodes disposed beneath a bottom surface of the electrical connection layer;
one or more piezo-ceramic transducers sandwiched between said bottom substrate layer and said electrical connection layer and electrically coupled to said pair of electrodes, each said piezo-ceramic transducer including a piezo-electric ceramic and first and second conductive flakes disposed on a top surface of said ceramic and electrically coupled to said pair of electrodes, said first flake extending to a bottom surface of said ceramic;
a top cover layer disposed on said electrical connection layer; and
means for communicating electrical signals to said piezo-ceramic transducers.
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Accused Products
Abstract
Devices for monitoring structural health conditions of structures. A device includes a bottom substrate layer and an electrical connection layer disposed on the bottom substrate layer. The electrical connection layer includes a middle layer and a pair of generally comb-shaped electrodes disposed beneath the bottom surface of the middle layer. The device also includes one or more piezo-ceramic transducers sandwiched between the bottom substrate layer and the electrical connection layer, wherein the transducers are electrically coupled to the comb-shaped electrodes. The device also includes a top cover layer disposed on the electrical connection layer and means for communicating electrical signals to the piezo-ceramic transducers.
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Citations
23 Claims
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1. A device for monitoring structural health conditions of an object, comprising:
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a bottom substrate layer; an electrical connection layer including a pair of electrodes disposed beneath a bottom surface of the electrical connection layer; one or more piezo-ceramic transducers sandwiched between said bottom substrate layer and said electrical connection layer and electrically coupled to said pair of electrodes, each said piezo-ceramic transducer including a piezo-electric ceramic and first and second conductive flakes disposed on a top surface of said ceramic and electrically coupled to said pair of electrodes, said first flake extending to a bottom surface of said ceramic; a top cover layer disposed on said electrical connection layer; and means for communicating electrical signals to said piezo-ceramic transducers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A device for monitoring structural health conditions of an object, comprising:
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a bottom substrate layer; an electrical connection layer including a pair of electrode arrays disposed beneath a bottom surface of said electrical connection layer; one or more piezo-ceramic transducers sandwiched between said bottom substrate layer and said electrical connection layer and electrically coupled to said pair of electrode arrays, each said piezo-ceramic transducer including a piezo-electric ceramic and first and second conductive flakes disposed on a top surface of said ceramic and electrically coupled to said pair of electrode arrays, said first flake extending to a bottom surface of said ceramic; a top cover layer disposed on said electrical connection layer; and means for communicating electrical signals to said piezo-ceramic transducers. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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Specification