Electric machine signal selecting element
First Claim
Patent Images
1. An electromechanical signal selection device comprising:
- a micro-vibrator which can be excited by an input signal; and
a post for retaining the micro-vibrator,wherein the physical property of the micro-vibrator changes in accordance with a crystal structural change of the micro-vibrator when excited so as to select a signal.
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Abstract
To provide an electromechanical signal selection device which can be miniaturized and highly integrated and which can selectively output only a signal of a predetermined frequency without providing any sensitive vibration sensing mechanism, and electric equipment using the electromechanical signal selection device.
A micro-vibrator serving as a resonator is provided. The micro-vibrator can be excited by an external force to excite vibration of the micro-vibrator. A material whose physical property is changed in accordance with a structural change is used as the micro-vibrator. Thus, a sensitive electromechanical signal selection device is obtained.
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Citations
26 Claims
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1. An electromechanical signal selection device comprising:
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a micro-vibrator which can be excited by an input signal; and a post for retaining the micro-vibrator, wherein the physical property of the micro-vibrator changes in accordance with a crystal structural change of the micro-vibrator when excited so as to select a signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An electromechanical signal selection device comprising:
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a micro-vibrator which can be excited by an input signal; and a post for retaining the microvibrator, wherein the physical property of the micro-vibrator changes when excited so as to select a signal, and wherein the microvibrator is retained by an electrode placed on the post. - View Dependent Claims (19)
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20. An electromechanical signal selection device comprising:
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a micro-vibrator which can be excited by an input signal; and a post for retaining the microvibrator, wherein the physical property of the micro-vibrator changes when excited so as to select a signal, wherein the microvibrator comprises a multilayer structure of at least two layers including a material layer generating the change in physical property and a conductor layer, wherein the conductor is formed to be linear, and wherein the material layer generating the change in physical property is formed around the linear conductor layer.
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21. An electromechanical signal selection device comprising:
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a microvibrator which can be excited by an input signal; and a post for retaining the micro-vibrator, wherein the physical property of the micro-vibrator changes when excited so as to select a signal, wherein the microvibrator comprises a multilayer structure of at least two layers including a material layer generating the change in physical property and a conductor layer, wherein the material layer generating the change in physical property is formed on the side where an electric field of a signal is concentrated, and wherein the material layer generating the change in physical property is formed under the substrate side of the conductor layer.
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22. An electromechanical signal selection device comprising:
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a micro-vibrator which can be excited by an input signal; and a post for retaining the micro-vibrator, wherein the physical property of the microvibrator changes when excited so as to select a signal, wherein the microvibrator comprises a multilayer structure of at least two layers including a material layer generating the change in physical property and a conductor layer, and wherein half the radius of the conductor is not larger than skin depth of a high frequency signal.
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23. An electromechanical signal selection device comprising:
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a micro-vibrator which can be excited by an input signal; and a post for retaining the micro-vibrator, wherein the physical property of the micro-vibrator changes when excited so as to select a signal, and wherein the input signal is supplied through a driving electrode disposed adjacently to the microvibrator. - View Dependent Claims (24)
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25. An electromechanical signal selection device comprising:
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a micro-vibrator which can be excited by an input signal; and a post for retaining the microvibrator, wherein the physical property of the microvibrator changes when excited so as to select a signal, and wherein a mechanism for applying an external magnetic field to the microvibrator is provided to excite the microvibrator due to a Lorentz force.
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26. An electromechanical signal selection device comprising:
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a micro-vibrator which can be excited by an input signal; and a post for retaining the microvibrator, wherein the physical property of the micro-vibrator changes when excited so as to select a signal, and wherein a mechanism for applying an external, magnetic field is provided in a driving electrode or a signal input electrode disposed adjacently to the micro-vibrator so as to excite vibration of the microvibrator in a desired direction.
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Specification