Apparatus for Sensing Environmental pH Changes
First Claim
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1. A sensor system comprising:
- a pH switchable polymeric element, the polymeric element has at least a first electrical state and a second electrical state and is switchable between the first and second electrical states as a function of predefined environmental pH changes, the sensor comprises a pH sensitive polymeric matrix and a plurality of conductive particles embedded in the polymeric matrix.
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Abstract
A sensor comprises: an electrically comprises a switchable polymeric element. The polymeric element has at least a first electrical state and a second electrical state and is switchable between the first and second electrical states as a function of predefined environmental pH changes.
The sensor comprises a pH sensitive polymeric matrix and a plurality of conductive particles embedded in the polymeric matrix.
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Citations
18 Claims
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1. A sensor system comprising:
- a pH switchable polymeric element, the polymeric element has at least a first electrical state and a second electrical state and is switchable between the first and second electrical states as a function of predefined environmental pH changes, the sensor comprises a pH sensitive polymeric matrix and a plurality of conductive particles embedded in the polymeric matrix.
- View Dependent Claims (2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18)
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7. A sensor system that undergoes a volumetric and electrical state hysteresis associated with exposure to environmental changes of particular pH values, the sensor comprises a pH sensitive polymeric matrix and a plurality of conductive particles embedded in the polymeric matrix.
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13. A sensor comprising a pH sensitive polymeric matrix and a plurality of conductive particles embedded in the polymeric matrix, wherein the sensor comprises a first electrical state associated with a first environmental pH state, a second electrical state associated with a second environmental pH and a first moisture content, and a third electrical state associated with the second environmental pH and a second moisture content.
Specification