reed switch

Definitions

Construction

• Two or more highly conductive reeds inside a glass container. The reeds open or close together in response to a magnetic field.

Electronics

• A switch whose contacts are mounted on magnetic reeds, and which is hermetically sealed in a glass tube. Such a switch is designed to be actuated by an external magnetic field. The contacts are not wetted by a pool of mercury, as is the case with a mercury-wetted reed switch. Also called dry-reed switch, or magnetic reed switch.

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Contexts for “reed switch”

2 definitions in context
• Construction
• Electronics