Drive unit and drive module

A drive unit and drive module which use a shape memory alloy as a drive source to move a driven member, and which can drive at a high speed, independently of the ambient temperature and the position of the driven member. The timing of moving the driven member is controlled based on the position to w...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HARA, YOSHIHIRO, TANIMURA, YASUTAKA, AOI, TAKESHI, SHIOTA, NATSUKO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY MEASURING MEASURING QUANTITY OF HEAT MEASURING TEMPERATURE OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAPHY PHYSICS TESTING THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:	A drive unit and drive module which use a shape memory alloy as a drive source to move a driven member, and which can drive at a high speed, independently of the ambient temperature and the position of the driven member. The timing of moving the driven member is controlled based on the position to which the driven member is moved, and based on the settling time for the driven member moved to that position to settle at that position, thus, the driven section can be moved in the minimum drive time, and this arrangement provides the drive unit and drive module that can drive at a high speed, independently of the ambient temperature and the position of the driven member.