Electromagnetic transducers and method of making them

Details Electromagnetic transducers and method of making them Electromagnetic transducers and method of making them

1988-12-28

1992-01-28

Robinson, Ellis P.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 369, 428209, 428901, 174 77R, 336200, 427123, B29D 2200

Patent

active

050843117

ABSTRACT:
A technique for fabricating a patterned conductor on the inner surface of a transparent tube comprises providing a source of conductive material inside a hollow tube and directing actinic radiation onto the tube wall where the deposition of a conductive pattern is desired to deposit conductive material thereon. That conductive deposit may be thickened by subsequent electroless or electroplating. The result is an improved magnetic resonance sensor comprising a hollow tube having "flat" conductor coils disposed on its interior surface.

REFERENCES:
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patent: 4340617 (1982-07-01), Duetsch et al.
patent: 4543270 (1985-09-01), Oprysko et al.
patent: 4574095 (1986-03-01), Baum et al.
patent: 4606932 (1986-08-01), Oprysko et al.
patent: 4639708 (1987-01-01), Weatherly
patent: 4727234 (1988-02-01), Oprysko et al.
J. Bargon et al., "Manufacturing Coils and Shields", IBM Technical Disclosure Bulletin, vol. 17, No. 7, Dec. 1974, p. 2113.

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