Electricity: measuring and testing – Particle precession resonance – Spectrometer components
Patent
1991-11-18
1994-01-18
Arana, Louis
Electricity: measuring and testing
Particle precession resonance
Spectrometer components
324318, 1286535, G01V 300
Patent
active
052802469
ABSTRACT:
A nuclear magnetic resonance apparatus receives nuclear magnetic resonance signals from an object under test with an RF probe which is an array of coils, implements down-frequency conversion with frequency converters for the received signals in multiple channels such that the frequency bands of the converted signals do not virtually overlap, filters the converted signals with band pass filters each operating to cut off frequency bands of other channels, hybridizes the filtered signals of multiple channels to form a hybridized signal, and produces an image from the hybridized signal.
REFERENCES:
patent: 4825162 (1989-04-01), Roemer et al.
patent: 5086275 (1992-02-01), Roemer
patent: 5144243 (1992-09-01), Nakabayashi et al.
patent: 5160891 (1992-11-01), Keren
Matsunaga Yoshikuni
Suzuki Ryuichi
Takahashi Tetsuhiko
Yamamoto Etsuji
Arana Louis
Hitachi , Ltd.
Hitachi Medical Corporation
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