Pulse generating element and a method and an apparatus for manuf

Details Pulse generating element and a method and an apparatus for manuf Pulse generating element and a method and an apparatus for manuf

1995-11-02

1998-01-13

Ryan, Patrick

Stock material or miscellaneous articles

All metal or with adjacent metals

Having magnetic properties, or preformed fiber orientation...

428315, 428379, 428615, 428617, H01F 100

Patent

active

057077533

ABSTRACT:
A pulse generating element formed of a switchable magnetic wire is worked so as to have an arcuate shape such that the ratio R/d between the radius of curvature R and diameter d of the wire in a state free from external force ranges from 65 to 95. This is achieved by subjecting a wire of a ferromagnetic material, such as Fe--Co--V, to drawing-bending work. The pulse generating element, which is obtained by cutting the switchable magnetic wire to a predetermined length, is restricted to a substantially straight state by a retaining member, and undergoes a drastic flux reversal when it is subjected to an alternating field.

REFERENCES:
patent: 4247601 (1981-01-01), Wiegand
patent: 4660025 (1987-04-01), Humphrey
patent: 5204526 (1993-04-01), Yamashita et al.

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