Resonant frequency pressure sensor
First Claim
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1. A pressure sensor comprising:
- an antenna member adapted to be resonantly responsive to a desired frequency of electromagnetic radiation;
a compressible dielectric material having an effective dielectric constant positioned in proximity to the antenna member and operably connected with the antenna member for effecting a resonant frequency shift in the antenna member responsive to changes in the effective dielectric constant of the compressible dielectric material; and
,a housing member for housing the antenna member in a desired proximity to the compressible dielectric material.
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Abstract
A pressure sensor (S) includes an antenna member (10) that is adapted to be resonantly responsive to a desired frequency of electromagnetic radiation (12). An inductance changing body formed from a compressible dielectric material (14) is positioned in proximity to the antenna member (10). A housing member (16) houses the antenna member (10) in a desired proximity to the compressible dielectric material (14). The compression of the dielectric material (14) changes the effective dielectric constant of the antenna (10).
51 Citations
4 Claims
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1. A pressure sensor comprising:
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an antenna member adapted to be resonantly responsive to a desired frequency of electromagnetic radiation; a compressible dielectric material having an effective dielectric constant positioned in proximity to the antenna member and operably connected with the antenna member for effecting a resonant frequency shift in the antenna member responsive to changes in the effective dielectric constant of the compressible dielectric material; and
,a housing member for housing the antenna member in a desired proximity to the compressible dielectric material. - View Dependent Claims (2, 3, 4)
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Specification
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Current AssigneeNorthrop Grumman Systems Corporation (Northrop Grumman Corporation)
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Original AssigneeNorthrop Grumman Systems Corporation (Northrop Grumman Corporation)
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InventorsPepples, David R.
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Primary Examiner(s)Allen; Andre J
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Application NumberUS11/554,116Publication NumberTime in Patent Office736 DaysField of Search737/22, 737/28, 340/447US Class Current73/722CPC Class CodesG01L 19/086 for remote indicationG01L 9/007 using variations in inductance
