Method and system for performance enhancement of resonant sensors
First Claim
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1. An inductor-capacitor-resistor (LCR) assembly for simultaneous sensing of two or more environmental parameters of a sample comprising:
- an LCR resonator sensor wherein the sensor comprises;
an antenna said antenna comprising a sensing region;
a sensing film deposited onto the sensing region;
an attachment point for mechanically attaching the LCR resonator sensor to the assembly;
a pick up coil in operative association with the LCR resonator sensor; and
wherein said antenna and said pick up coil are coupled by mutual inductance and connected to a reader; and
wherein viscoelastic changes in the sensing film cause displacement of the antenna relative to the pick up coil;
wherein said mutual inductance improves selectivity of the LCR resonator sensor and quantifies said two or more environmental parameters.
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Abstract
The present invention related to methods and systems for simultaneously sensing two or more environmental parameters of a sample. Included is an inductor-capacitor-resistor (LCR) resonator sensor and a pick up coil in operative association with the LCR resonator sensor wherein viscoelastic changes in the sensing film cause displacement of the antenna relative to the pick up coil.
37 Citations
22 Claims
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1. An inductor-capacitor-resistor (LCR) assembly for simultaneous sensing of two or more environmental parameters of a sample comprising:
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an LCR resonator sensor wherein the sensor comprises; an antenna said antenna comprising a sensing region; a sensing film deposited onto the sensing region; an attachment point for mechanically attaching the LCR resonator sensor to the assembly; a pick up coil in operative association with the LCR resonator sensor; and wherein said antenna and said pick up coil are coupled by mutual inductance and connected to a reader; and
wherein viscoelastic changes in the sensing film cause displacement of the antenna relative to the pick up coil;
wherein said mutual inductance improves selectivity of the LCR resonator sensor and quantifies said two or more environmental parameters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for measuring two or more conditions of an environment comprising of a sample:
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providing an LCR assembly wherein the LCR assembly comprises; an LCR resonator sensor wherein the sensor comprises; an antenna said antenna comprising a sensing region; a sensing film deposited onto the sensing region; and an IC memory chip attached to the antenna; and a pick up coil in operative association with the LCR resonator sensor such that displacement of the antenna relative to the pick up coil is coupled by mutual inductance to improve selectivity of the LCR resonator; applying different input power levels to the IC memory chip; and measuring complex impedance spectrum of the sensing antenna at the different input power levels wherein changes in the complex impedance spectrum at the different power levels relate to different physical or biological properties of the sample. - View Dependent Claims (18)
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19. A method of correcting for at least one noise parameter of an LCR resonant sensor response comprising the steps of:
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providing an LCR assembly wherein the LCR assembly comprises; an LCR resonator sensor wherein the sensor comprises; an antenna said antenna comprising a sensing region; a sensing film deposited onto the sensing region; and a pick up coil in operative association with the LCR resonator sensor such that displacement of the antenna relative to the pick up coil is coupled by mutual inductance to improve selectivity of the LCR resonator; measuring the complex impedance of the LCR resonator sensor upon exposure to an environmental condition; and correcting for the noise parameters using inputs of the LCR sensor. - View Dependent Claims (20, 21, 22)
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Specification