摘要:
An electromechanical switch includes a first beam, a second beam arranged in parallel with the first beam and connected to the first beam through a connecting portion, a first electrode formed so as to have a first gap with respect to the first beam, a voltage applying portion which applies a voltage between the first beam and the first electrode, and a second electrode formed so as to have a second gap with respect to the second beam. The second gap is greater than the first gap. The first beam is displaced when the voltage applying portion applies the voltage between the first beam and the first electrode, so that switching between the second beam and the second electrode is performed in a state that the first beam is not electrically connected to the first electrode.
摘要:
A piezoelectric element of the present invention includes a substrate, a lower electrode layer, a piezoelectric layer, an upper electrode layer, a cavity portion formed below a piezoelectric vibrating portion, and at least two bridging portions. The at least two bridging portions are formed so as not to be line-symmetric with respect to any line segment traversing the piezoelectric vibrating portion and/or so as not to be point-symmetric with respect to any point in the piezoelectric vibrating portion in a projection of the piezoelectric vibrating portion in the laminating direction.
摘要:
A vibration power generator includes a first substrate, a first electrode on the first substrate, a second substrate spaced from and opposite the first substrate, and a second electrode on the second substrate. The first electrode vibrates with respect to the second substrate, and the first electrode and the second electrode include a film retaining electric charges. The vibration generator includes a third electrode with a film retaining electric charges on the first substrate, and a fourth electrode with a film retaining electric charges on the second substrate. The third electrode and the fourth electrode are arranged so that the first substrate is retained in a predetermined position when an external force does not act on the first substrate, while an electrostatic force for returning the first substrate to a predetermined position acts on the first substrate and the first substrate moves with respect to the second substrate.
摘要:
A vibration power generator includes a first substrate, a first electrode disposed on a lower surface of the first substrate and including a film retaining electric charges, a second substrate opposing the lower surface of the first substrate, a second electrode disposed on an upper surface of the second substrate, a third electrode disposed on the upper surface of the first substrate and including a film retaining the electric charges, a third substrate opposing the upper surface of the first substrate, and a fourth electrode disposed on a lower surface of the third substrate and opposing the third electrode. The film of the first electrode has a polarity different from a polarity of the film of the third electrode, and the vibration power generator includes a restoring force generation member giving a restoring force when an external force is not exerted to the first substrate.
摘要:
A power generator comprises a first substrate 102, a second substrate 103 opposed to the first substrate, first electrodes 104L and 104R and a first electrode 106 which are formed on the first substrate, second electrodes 105L and 105R and a second electrode 107 which are formed on the second substrate, wherein electric charge of the same polarity is held by the first electrode and the second electrode, and the first substrate vibrates such that an angle formed between a segment connecting a centroid of the first electrode 104L (104R) and a centroid of the second electrode 105L (105R), and a half line extending from the centroid of the second electrode 105L (105R) toward the first electrode 104L (104R) in a stationary state in parallel to the main surface of the second substrate does not exceed 55 degrees while the first substrate 102 is stationary and vibrates.
摘要:
An electromechanical switch includes a first beam, a second beam arranged in parallel with the first beam and connected to the first beam through a connecting portion, a first electrode formed so as to have a first gap with respect to the first beam, a voltage applying portion which applies a voltage between the first beam and the first electrode, and a second electrode formed so as to have a second gap with respect to the second beam. The second gap is greater than the first gap. The first beam is displaced when the voltage applying portion applies the voltage between the first beam and the first electrode, so that switching between the second beam and the second electrode is performed in a state that the first beam is not electrically connected to the first electrode.
摘要:
Electricity generated by a vibration power generator 200 can be extracted efficiently by providing the vibration power generator 200, a rectifier circuit bridge 205, an output controlling circuit 201, a load detecting circuit 202 and a frequency detecting circuit 204 and detecting a frequency of the vibration power generator 200 and then controlling an impedance of an output controlling circuit 101 depending on the frequency.
摘要:
The present invention is directed to a piezoelectric resonator filter for allowing a high-frequency signal in a desired frequency band to pass therethrough, including: two or more reactance elements in serial connection between input and output terminals; at least three or more piezoelectric resonators in parallel connection between the input and output terminals; and an inductor having a grounded end. Among the three or more piezoelectric resonators, only those piezoelectric resonators which do not adjoin each other in the equivalent circuit are connected in common to the inductor.
摘要:
A piezoelectric element of the present invention includes a substrate, a lower electrode layer, a piezoelectric layer, an upper electrode layer, a cavity portion formed below a piezoelectric vibrating portion, and at least two bridging portions. The at least two bridging portions are formed so as not to be line-symmetric with respect to any line segment traversing the piezoelectric vibrating portion and/or so as not to be point-symmetric with respect to any point in the piezoelectric vibrating portion in a projection of the piezoelectric vibrating portion in the laminating direction.
摘要:
Electricity generated by a vibration power generator 200 can be extracted efficiently by providing the vibration power generator 200, a rectifier circuit bridge 205, an output controlling circuit 201, a load detecting circuit 202 and a frequency detecting circuit 204 and detecting a frequency of the vibration power generator 200 and then controlling an impedance of an output controlling circuit 101 depending on the frequency.