ROTATING MOTION SENSOR
First Claim
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1. A rotating motion sensor comprising:
- at least one electroacoustic resonator to stimulate a surface acoustic wave;
wherein the at least one electroacoustic resonator is configured so that rotation of the at least one electroacoustic resonator about an axis of rotation causes a change in resonance frequency of the at least one electroacoustic resonator.
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Abstract
A rotating motion sensor includes at least one electroacoustic resonator to stimulate a surface acoustic wave. The at least one electroacoustic resonator is configured so that rotation of the at least one electroacoustic resonator about an axis of rotation causes a change in resonance frequency of the at least one electroacoustic resonator. The at least one electroacoustic resonator includes oscillating structures configured to oscillate in a first direction that is a direction of propagation of the surface acoustic wave and/or a second direction that is transverse to the direction of propagation of the surface acoustic wave.
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Citations
20 Claims
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1. A rotating motion sensor comprising:
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at least one electroacoustic resonator to stimulate a surface acoustic wave; wherein the at least one electroacoustic resonator is configured so that rotation of the at least one electroacoustic resonator about an axis of rotation causes a change in resonance frequency of the at least one electroacoustic resonator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A rotating motion sensor comprising:
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at least one electroacoustic resonator to stimulate a surface acoustic wave, the at least one electroacoustic resonator comprising; oscillating structures configured to oscillate in a first direction that is a direction of propagation of the surface acoustic wave and/or a second direction that is transverse to the direction of propagation of the surface acoustic wave; wherein the at least one electroacoustic resonator is configured so that rotation affects operation of the at least one electroacoustic resonator; wherein at least two of the oscillating structures have different geometries; wherein at least two of the oscillating structures comprise different layer structures; and wherein the at least one electroacoustic resonator comprises different regions, the different regions comprising different densities of oscillating structures.
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Specification