Measurement of the resin content of a composite material by nucl

Details Measurement of the resin content of a composite material by nucl Measurement of the resin content of a composite material by nucl

1997-04-28

1998-10-06

Arana, Louis M.

Electricity: measuring and testing

Particle precession resonance

324307, G01V 300

Patent

active

058182284

ABSTRACT:
The resin content of an organic resin-matrix composite material is measured nondestructively by nuclear magnetic resonance. A specimen of the composite material is placed into a constant magnetic field and subjected to a radio-frequency magnetic field pulse. The response of the material is indicative of the amount of organic resin that is present. The response may be used as a feedback signal to control the operation of a manufacturing machine.

REFERENCES:
patent: 4532218 (1985-07-01), Strom
patent: 4769601 (1988-09-01), Herrick
patent: 5198766 (1993-03-01), Spraul et al.
patent: 5302897 (1994-04-01), Tache et al.
patent: 5321358 (1994-06-01), Mohr et al.

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