摘要:
L'invention concerne un résonateur électromécanique comportant au moins un élément déformable (20), des moyens (40, 42, 44) d'actionnement de cet élément déformable pour lui appliquer, simultanément, au moins une première force d'actionnement à une première fréquence, et une deuxième force d'actionnement à au moins une deuxième fréquence, la première et la deuxième fréquences créant au moins deux résonances simultanées à une fréquence de résonance égale à la fréquence d'une des forces d'actionnement.
摘要:
The electromechanical transducer (1) has a resonator element (20) and an actuator (30) for inducing an elastic deformation of the resonator element (20) dependent on the electrical input signal. For temperature stabilization, the electromechanical transducer (1) has a sensing element (40) for providing an electrical sensing signal has a function of a temperature of the resonator element (20), and a heating element (50) for heating the resonator element to reduce the temperature dependent frequency deviation to keep the resonance frequency equal to the nominal frequency at operating temperature. The heating element (50) is controlled by an electrical heating signal based on the electrical sensing signal. The resonator element may have the hating element or the sensing element; it may be part of a wheatstone bridge; it may consist of two longitudinally extendable parts (201, 202) extending in opposite directions, being attached in a support area (204) in a deformation free part (203).
摘要:
Oscillators include a resonator having first and second electrodes and configured to resonate at a first frequency at which the first and second electrodes carry in-phase signals and at a second frequency at which the first and second electrodes carry out-of-phase signals. A driver circuit is configured to selectively sustain either the in-phase signals on the first and second electrodes or the out-of-phase signals on the first and second electrodes so that the resonator selectively resonates at either the first frequency or the second frequency, respectively. Related oscillator operating methods are also disclosed.
摘要:
L'invention concerne un résonateur comprenant un élément résonant (20) comportant un corps (21) et des colonnes (24) d'un matériau (66) ayant un module d'Young (E) dont le coefficient de température (TCE) est d'un signe opposé à celui du corps.
摘要:
L'invention concerne un dispositif nano-résonateur comportant: - au moins un élément fixe (2) et au moins un élément mobile (4) par rapport à l'élément fixe, - des premiers moyens électromagnétiques (40), intégrés ou fixés à l'élément fixe, et des deuxièmes moyens électromagnétiques (16), intégrés ou fixés à l'élément mobile, pour générer un mouvement oscillant de l'élément mobile.
摘要:
A micro-resonator wherein the combined impedance of the resonator can be reduced so as to allow the resonator to be applied to a desired device. A communication apparatus having a filter comprising such a micro-resonator. The micro-resonator is configured by electrically parallel connecting a plurality of micro-resonator elements having a beam structure. The communication apparatus uses the micro-resonator as a filter.
摘要:
A micromachine for use in a high-frequency filter having a high Q value and a higher frequency band. A micromachine (20) characterized by comprising an output electrode (7) provided on a substrate (1), an interlayer insulation film consisting of a first insulation film (9) and a second insulation film (11) provided on the substrate so as to cover the output electrode (7), a hole pattern (11a) provided in the second insulation film (11) so as to reach the output electrode (7), and a band-form vibrator electrode (15) provided on the second insulation film (11) so as to cross the upper part of the hole pattern with the interior of the hole pattern (11a) formed as a hollow (A).
摘要:
A torsional resonator for suppressing unnecessary flexural vibration and providing excellent resonance characteristic is provided. A vibrator is a beam structure or a paddle-like projection structure added onto a beam structure and an electrostatic force produced due to the potential difference between an electrode and the vibrator adds a moment with the axis of the beam of the vibrator as the center axis, but does not add a force for producing flexure to the beam. As one method, the same AC signal and DC bias voltages different in polarity are applied to an electrode pair of the electrode brought away from the vibrator and the electrode brought close to the vibrator with torsional vibration of the vibrator, so that only torsional vibration can be excited.