Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Utilizing magnetostrictive elements
Patent
1974-07-12
1976-06-01
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Utilizing magnetostrictive elements
335215, 317143, H01H 5500
Patent
active
039612970
ABSTRACT:
Devices relying on the Inverse Wiedman Effect. Devices include a current conductive, magnetically anisotropic rod, through which an AC current flows. Wound about the rod is a conductive coil having output terminals. By varying the AC current, the anisotropy, or both, variations in the output across coil terminals can be obtained. Devices may be for current sensing, pressure sensing, fluid flow sensing or an electric push button.
REFERENCES:
patent: 3015708 (1962-01-01), Mason
patent: 3504282 (1970-03-01), Opsahl
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