Piezoelektrischer Aktor und Vorrichtung zur Informationsspeicherung

Piezoelektrischer Aktor und Vorrichtung zur Informationsspeicherung

A piezoelectric actuator (200) includes a center body (200a) and two spiral arms (200b), the two arms (200b) being entirely in rotation symmetry and nonlinear symmetry. Such a piezoelectric actuator (200) can obtain large displacement at low voltage, be small-sized and lightweight, and be low in man...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HIDA, MASAHARU, UMEMIYA, SHIGEYOSHI, MITA, TSUYOSHI, KURIHARA, KAZUAKI, KUTAMI, MICHINORI
Format: Patent
Sprache:ger
Schlagworte:
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
GENERATION
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Beschreibung
Zusammenfassung:A piezoelectric actuator (200) includes a center body (200a) and two spiral arms (200b), the two arms (200b) being entirely in rotation symmetry and nonlinear symmetry. Such a piezoelectric actuator (200) can obtain large displacement at low voltage, be small-sized and lightweight, and be low in manufacture cost and accordingly an information storage apparatus in which such a piezoelectric actuator is incorporated can be small sized, lightweight, and have a small inertia moment during head driving and a high recording density.