SHAPE MEMORY ACTUATOR

SHAPE MEMORY ACTUATOR

PURPOSE:To heat a shape memory actuator with higher efficiency than a conventional method of conducting the shape memory material directly and carry out driving with low voltage by forming a resistance heating element at the surface of a shape memory material, and conducting the resistance heating e...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: MATSUI TERUYUKI, MITSUISHI SETSUYA, OKAMOTO HIROSHI, TAKUSAGAWA TOMOYASU
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
HEATING
LIGHTING
MACHINES OR ENGINES FOR LIQUIDS
MECHANICAL ENGINEERING
MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOTOTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISEPROVIDED FOR
OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
PRODUCING MECHANICAL POWER
SPRING, WEIGHT, INERTIA OR LIKE MOTORS
WEAPONS
WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:PURPOSE:To heat a shape memory actuator with higher efficiency than a conventional method of conducting the shape memory material directly and carry out driving with low voltage by forming a resistance heating element at the surface of a shape memory material, and conducting the resistance heating element. CONSTITUTION:For this shape memory actuator 3, an insulating thin film 5 consisting of silicon nitrified film or the like is formed at the surface of shape memory alloy 4 by high-frequency magnetron sputtering or the like. At this time, a resistance heating element 6 consisting of a nickel chrome alloy thin film or the like is formed at the surface of the insulating thin film 5 by vacuum deposition or the like. Since conduction and heating are carried out with the resistance heating element formed on the shape memory alloy surface, resistance value is larger than bulk metal, which permits low power driving. The time of reaching a prescribed temperature is short, thus permitting high-speed operation.