RESONATOR, UNIT AND OSCILLATOR

A resonator comprising a base portion, first and second vibrational arms, and a frame having first, second, third and fourth frame portions, the first and second frame portions extending in a common direction with the vibrational arms, third frame portion being connected to the base portion, the fir...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	KAWASHIMA, Hirofumi
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY ELECTRICITY GENERATION OF NOISE BY SUCH CIRCUITS GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING,BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN ANON-SWITCHING MANNER IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS RESONATORS
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Beschreibung
Zusammenfassung:	A resonator comprising a base portion, first and second vibrational arms, and a frame having first, second, third and fourth frame portions, the first and second frame portions extending in a common direction with the vibrational arms, third frame portion being connected to the base portion, the first frame portion being connected to the second frame portion through the third and fourth frame portions, each of the vibrational arms having a first vibrational portion including a first width and a first length, and a second vibrational portion including a second width greater the first width and a second length less than the first length, a groove being formed in at least one of main surfaces of each vibrational arm, and a spaced-apart distance between the second vibrational portions being less than a spaced-apart distance between the first frame portion and the first vibrational portion of the first vibrational arm.