Embeddable DC power supply for smart structure sensors
First Claim
1. A smart structure comprising a sensor integrated with the structure, a DC power supply integrated with the structure for providing energy to the sensor, an external exciter circuit, and a resonant detector circuit integrated with the structure for detecting a sensor output and transmitting a corresponding signal to said exciter circuit;
- said power supply being disposed on a substrate embedded in the structure;
said power supply having an inductive coil and ac to dc converter components disposed on the substrate;
said inductive coil being disposed in a high frequency magnetic field produced by said exciter circuit.
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Abstract
A smart structure comprising a rotatable shaft, and a sensor integrated with the shaft, a resonant detector circuit integrated with the structure for detecting a sensor output, and an external exciter circuit; the detector circuit having first coil means and the exciter circuit having second coil means magnetically coupled to the first coil means when aligned across a gap; and control means exterior the shaft for producing an output that corresponds to the sensor output compensated for the gap.
92 Citations
18 Claims
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1. A smart structure comprising a sensor integrated with the structure, a DC power supply integrated with the structure for providing energy to the sensor, an external exciter circuit, and a resonant detector circuit integrated with the structure for detecting a sensor output and transmitting a corresponding signal to said exciter circuit;
- said power supply being disposed on a substrate embedded in the structure;
said power supply having an inductive coil and ac to dc converter components disposed on the substrate;
said inductive coil being disposed in a high frequency magnetic field produced by said exciter circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7)
- said power supply being disposed on a substrate embedded in the structure;
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8. A DC power supply for a sensor embedded in a composite smart structure comprising:
- a substrate embeddable in the structure, a circuit pattern disposed on said substrate for interconnecting a plurality of components, said components comprising an inductive coil and an ac to dc converter, said coil being disposed on said substrate, said circuit pattern including terminals for disposing said components on said substrate and connection to the sensor, said coil being disposed in a high frequency magnetic field.
- View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
Specification