The patent relates to a small reed switch having a glass tubularly shaped envelope containing a pair of reed contacts which is modified to ensure its being biased to either an open or a closed position. A donut-shaped piece of a rubber-bonded, barium-ferrite, magnetic material is circumferentially mounted on the reed switch at a position where its magnetic field influences the contacts to an open position or a closed position. Thusly arranged, an actuating magnet, having a sufficient field at a single pre-established distance from the contacts, actuates the switch from all radial directions from the switch. Potting the modified switch in an epoxy resin further ensures a greater reliability and makes it ideal for implantations in laboratory animals.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Coated Magnetically Biased Reed Switch


    Contributors:

    Publication date :

    1975


    Size :

    4 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Coated Magnetically Biased Reed Switch

    R. L. Seeley | NTIS | 1975


    Reed-Switch Position Indicator

    Winner, F. E. | NTRS | 1985


    Dry reed switches and switch modules

    Dumbauld, L.D. | Engineering Index Backfile | 1963


    Magnetically biased shape memory actuator for clogging indicators

    Tertre, D. / Stöckel, D. | Tema Archive | 1992


    Reed switch wins brake - warning job

    Automotive engineering | 1985