Loop oscillator NMR probe

Details Loop oscillator NMR probe Loop oscillator NMR probe

1994-06-13

1996-06-18

Snow, Walter E.

Electricity: measuring and testing

Particle precession resonance

Using well logging device

324300, 324301, 324302, G01V 300

Patent

active

055281435

ABSTRACT:
A nuclear magnetic resonance probe is provided comprising a high frequency resonator (14, 16) having a resonant frequency, a first coaxial conductor (20) connected to the high frequency resonator, and a high frequency supply which supplies the first coaxial conductor (20) the resonant frequency of the high frequency resonator (14, 16). The high frequency supply includes a conductive sampling loop (40) at least partly placed in the high frequency resonator (14, 16) and a broad band, high frequency, amplifier (56) having an input (E) connected to the sampling loop (40) by a second coaxial conductor (50) and an output (S) connected to the first coaxial conductor (20). The assembly forming a high frequency loop oscillator locked to the resonant frequency of the high frequency resonator (14, 16).

REFERENCES:
patent: 5051700 (1991-09-01), Fox
patent: 5166620 (1992-11-01), Panosh
patent: 5198767 (1993-03-01), Glenat et al.
patent: 5221897 (1993-06-01), Duret et al.
patent: 5414357 (1995-05-01), Kernevez et al.
patent: 5455511 (1995-10-01), Duret

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