Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Patent
1987-09-22
1989-04-18
Noland, Tom
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
G01R 3320
Patent
active
048230847
ABSTRACT:
The invention relates to a method of determining the spectral distribution of the nuclear magnetization in a limited volume range. For this purposes, a sequence is used, which comprises a first 90.degree. high-frequency pulse and three succeeding 180.degree. high-frequency pulse, whose relative time spacing is equal and smaller than the time spacing of the first high-frequency pulse from the first of the 180.degree. high-frequency pulses. The spectral distribution then obtained is strongly independent of the influence of eddy currents.
REFERENCES:
patent: 4318043 (1982-03-01), Crooks et al.
patent: 4558277 (1985-12-01), Post et al.
Haken Jack E.
Noland Tom
O'Shea Kevin D.
Slobod Jack D.
U.S. Philips Corporation
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