Method of and apparatus for selective localized differential hyp

Details Method of and apparatus for selective localized differential hyp Method of and apparatus for selective localized differential hyp

1982-09-16

1985-05-28

Leung, Philip H.

Electric heating

Metal heating

Of cylinders

219 1057, 219 1075, 219 1043, H05B 610

Patent

active

045202494

ABSTRACT:
Apparatus generates a pulsed, alternating magnetic field which is coupled to magnetizable particles of submicron size dispersed in colloidal suspension in a medium. The frequency of the applied magnetic field is related to the size of the particles in such a manner as to maximize dissipative heat coupling to the medium. The differential temperature rise in the area of the medium surrounding the particles may be controlled by the concentration of the particles. Thus, defined temperature rises may be selectively produced in highly localized areas.

REFERENCES:
patent: 3718804 (1973-02-01), Ando
patent: 4003840 (1977-01-01), Ishino et al.
patent: 4035547 (1977-07-01), Heller, Jr. et al.
patent: 4136683 (1979-01-01), Gordon
patent: 4190053 (1980-02-01), Sterzer
Callen, "Thermodynamics", Section 14.6, The Magnetocaloric Effect, published 1960.

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