Magnetoelastic, remanent, hysteretic devices

Details Magnetoelastic, remanent, hysteretic devices Magnetoelastic, remanent, hysteretic devices

1974-07-12

1976-01-13

Favors, Edward G.

Combustion

Electrical or mechanical igniter correlated with burner feed

Having electric current producer

335215, 431264, F23Q 300

Patent

active

039321126

ABSTRACT:
Devices relying on the Inverse Wiedemann Effect. In all instances, magnetostrictive rods are circularly magnetized and exhibit hysteresis when plotting axial induction vs. twist. Hysteresis, especially when rectangular, yields high d.phi./dt upon twisting to result in large output voltage across terminals of coil wound about the rod. In other embodiments, rectangular hysteresis gives rise to one-shot electric push button or sequential switch. Hysteretic magnetostrictive circularly magnetized rods also serve as recording devices to detect mechanical movement or shock.

REFERENCES:
patent: 3083353 (1963-03-01), Bobeck

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