Electromechanical lock employing shape memory metal wire

摘要: An electronic lock incorporating one or more shape memory metal wire segment as its electromechanical transducer. control circuit injects electrical current into the wire, causing it to heat up and contract. A gate is positioned by action of wire(s) either allow block movement a locking bolt that affect unlocking. Millions operational cycles are achieved limiting stretching at low temperature small percentages total length. The design lends itself miniaturization, with commensurate reduction in power consumption, useful evolution future locks.