INTEGRATED SENSORS FOR STRUCTURAL HEALTH MONITORING
First Claim
1. A wireless sensor comprising:
- a sensing element adapted to provide an electrical response indicating whether a physical parameter applied to said wireless sensor has exceeded a predetermined threshold;
a signal conditioning element electrically coupled to said sensing element and adapted to detect said electrical response of said sensing element; and
a passive RFID tag electrically coupled to said signal conditioning element, said passive RFID tag being adapted to be powered by an interrogation by an RFID reader, to receive an indication of said electrical response from said signal conditioning element, and to transmit said indication to the RFID reader.
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Accused Products
Abstract
A wireless sensor includes a sensing element, a signal conditioning element, and a passive RFID tag. The sensing element is adapted to provide an electrical response indicating whether a physical parameter applied to the wireless sensor has exceeded a predetermined threshold. The signal conditioning element is electrically coupled to the sensing element and is adapted to detect the electrical response of the sensing element. The passive RFID tag is electrically coupled to the signal conditioning element. The passive RFID tag is adapted to be powered by an interrogation by an RFID reader, to receive an indication of the electrical response from the signal conditioning element, and to transmit the indication to the RFID reader.
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Citations
21 Claims
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1. A wireless sensor comprising:
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a sensing element adapted to provide an electrical response indicating whether a physical parameter applied to said wireless sensor has exceeded a predetermined threshold; a signal conditioning element electrically coupled to said sensing element and adapted to detect said electrical response of said sensing element; and a passive RFID tag electrically coupled to said signal conditioning element, said passive RFID tag being adapted to be powered by an interrogation by an RFID reader, to receive an indication of said electrical response from said signal conditioning element, and to transmit said indication to the RFID reader. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for detecting damage to a structure, comprising the steps of:
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affixing a wireless sensor to a location of the structure, said wireless sensor including a sensing element, a signal conditioning element, and a passive radio-frequency identification tag; operating a radio-frequency identification reader to interrogate said passive radio-frequency identification tag of said wireless sensor, whereby said radio-frequency identification reader powers said passive radio-frequency identification tag; and receiving, by said radio-frequency identification reader from said passive radio-frequency identification tag of said wireless sensor, a sensing response of said sensing element, said sensing response indicating a damage state at the location of the structure. - View Dependent Claims (20, 21)
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Specification