Magneto-mechanical resonator sensor with pre-disposed mass
First Claim
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1. A sensing device, comprising:
- a magnetic bias layer having a first magnetic surface and an opposing second magnetic surface, the magnetic layer comprising a first electromagnetic material,a resonator having a first resonator major surface and an opposing second resonator major surface, the resonator comprising a second magnetic material, the second resonator major surface facing toward the first magnetic surface,a spacer disposed between the magnetic bias layer and the resonator, andan environmental change receptor disposed on the first resonator major surface,wherein the environmental change receptor is disposed proximate to an end of the resonator,wherein the mass of the environmental change receptor is changed in response to a change in environment,wherein resonant frequency of the sensing device shifts in response to the mass change of the environmental change receptor.
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Abstract
Some aspects of the present disclosure feature a sensing device comprising a magnetic bias layer, a resonator, a spacer, and an environmental change receptor. The environmental change receptor is disposed on a surface of the resonator. The mass of the environmental change receptor is changed in response to a change in environment. The resonant frequency of the sensing device shifts in response to the mass change of the environmental change receptor.
25 Citations
18 Claims
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1. A sensing device, comprising:
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a magnetic bias layer having a first magnetic surface and an opposing second magnetic surface, the magnetic layer comprising a first electromagnetic material, a resonator having a first resonator major surface and an opposing second resonator major surface, the resonator comprising a second magnetic material, the second resonator major surface facing toward the first magnetic surface, a spacer disposed between the magnetic bias layer and the resonator, and an environmental change receptor disposed on the first resonator major surface, wherein the environmental change receptor is disposed proximate to an end of the resonator, wherein the mass of the environmental change receptor is changed in response to a change in environment, wherein resonant frequency of the sensing device shifts in response to the mass change of the environmental change receptor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A sensing device, comprising:
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a magnetic bias layer having a first magnetic surface and an opposing second magnetic surface, the magnetic layer comprising a first magnetic material, a resonator having a first resonator major surface and an opposing second resonator major surface, the resonator comprising a second magnetic material, the second resonator major surface facing toward the first magnetic surface, a spacer disposed between the magnetic bias layer and the resonator, an environmental change receptor disposed on the first resonator surface, and a housing with one or more openings, wherein the magnetic bias layer, the resonator, and the spacer are disposed in the housing, wherein the environmental change receptor is disposed proximate to an end of the resonator. - View Dependent Claims (15, 16)
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17. A sensing device, comprising:
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a magnetic bias layer having a first magnetic surface and an opposing second magnetic surface, the magnetic layer comprising a first magnetic material, a resonator having a first resonator major surface and an opposing second resonator major surface, the resonator comprising a second magnetic material, the second resonator major surface facing toward the first magnetic surface, an environmental change receptor disposed on the first magnetic surface, and a housing comprising a supporting structure to support the resonator, wherein the magnetic bias layer and the resonator are disposed in the housing wherein the environmental change receptor is disposed proximate to an end of the resonator. - View Dependent Claims (18)
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Specification