Cultural treasures anti-metal closing audible and visual alarm circuit

Published:2012/9/20 21:25:00 Author:Ecco | Keyword: Cultural treasures , anti-metal closing , audible and visual alarm | From:SeekIC

As shown in the figure, the circuit consists of electromagnetic inductive proximity switch, relay control circuit, whistle analog voice circuit and AC buck rectifier circuit. This circuit can be used for prevention of burglary in museum, artifacts or treasures Collection Room. When someone uses metal artifacts to open the cabinet, the circuit will automatically send alarm whistles and start relay control circuit to turn on the light or camera equipment.



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