Multiple detector apparatus and method for monitoring an environment
First Claim
1. A monitoring device for detecting a particular condition, comprising:
- a first carrier;
a processor disposed on the first carrier;
a first sensor disposed on the first carrier, wherein the first sensor is coupled to the processor and configured to detect when the monitoring device is subjected to at least a first magnitude of a first condition;
a second sensor disposed on the first carrier, wherein the second sensor is coupled to the processor and configured to detect when the monitoring device is subjected to at least a second magnitude of a second condition;
a second carrier disposed over at least a portion of one or more of the processor, the first sensor, and the second sensor,wherein the processor is configured to generate a signal in response to detection of the first sensor being subjected to at least the first magnitude of the first condition and the second sensor being subjected to less than the second magnitude of the second condition; and
wherein the second sensor comprises a bilayer construction of a top layer and a bottom layer, the top layer comprising a selectively permeable polymer configured to provide a barrier to certain molecules and allow other molecules to pass through, the bottom layer comprising a conductive polymer.
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Accused Products
Abstract
According to one aspect, a monitoring device for detecting when an object may be subjected to a condition includes a processor, a first sensor, a second sensor, and a configuration circuit. A first sensor is polymer monolayer adapted to detect if the object is subjected to a magnitude of a first condition. A second sensor is a polymer bilayer adapted to detect if the object is subjected to a magnitude of a second condition. The resistance across the first sensor and second sensor are compared to determine whether an ambient/environmental condition has been detected. Indication of detection of an ambient/environmental condition, magnitude of the condition, and the time may be stored.
93 Citations
19 Claims
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1. A monitoring device for detecting a particular condition, comprising:
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a first carrier; a processor disposed on the first carrier; a first sensor disposed on the first carrier, wherein the first sensor is coupled to the processor and configured to detect when the monitoring device is subjected to at least a first magnitude of a first condition; a second sensor disposed on the first carrier, wherein the second sensor is coupled to the processor and configured to detect when the monitoring device is subjected to at least a second magnitude of a second condition; a second carrier disposed over at least a portion of one or more of the processor, the first sensor, and the second sensor, wherein the processor is configured to generate a signal in response to detection of the first sensor being subjected to at least the first magnitude of the first condition and the second sensor being subjected to less than the second magnitude of the second condition; and wherein the second sensor comprises a bilayer construction of a top layer and a bottom layer, the top layer comprising a selectively permeable polymer configured to provide a barrier to certain molecules and allow other molecules to pass through, the bottom layer comprising a conductive polymer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of detecting that a device has been subjected to an environmental condition, comprising:
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providing a device comprising a first sensor, a second sensor and a processor, wherein the second sensor comprises a bilayer construction of a top layer and a bottom layer, the top layer comprising a selectively permeable polymer configured to provide a barrier to certain molecules and allow other molecules to pass through, the bottom layer comprising a conductive polymer; detecting when the first sensor is subjected to at least a first magnitude of a first condition by measuring resistance across the first sensor; detecting when the second sensor is subjected to less than a second magnitude of a second condition by measuring resistance across the second sensor; and generating a signal in response to detection of the first sensor being subjected to at least the first magnitude of the first condition and the second sensor being subjected to less than the second magnitude of the second condition. - View Dependent Claims (16, 17, 18, 19)
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Specification