Electricity: measuring and testing – Particle precession resonance – Spectrometer components
Patent
1990-12-03
1993-04-20
Arana, Louis
Electricity: measuring and testing
Particle precession resonance
Spectrometer components
324322, 1286535, G01V 300
Patent
active
052046290
ABSTRACT:
An automatic aligning mechanism is used for a nuclear magnetic resonance imaging apparatus, the imaging apparatus producing an image of a section of an inspected portion of a subject at a predetermined inspecting position in a central space of a main coil supported by a gantry, by means of the principles of nuclear magnetic resonance. The mechanism includes a base having a table top, on which the subject is placed and which is movable to move the subject into and out from on opening of the gantry corresponding to the inner space of the main coil, a position measuring unit, having an indicating member which is movable on the top to indicate an inspected portion of the subject and measuring a relative position of the inspected portion to the top by the moving distance of the indicating member, and a detecting unit, which detects a distance between the subject's inspected portion and a predetermined inspecting position in the central space of the main coil on the basis of the measured result by the position measuring unit and moves the plate for the detected distance toward the gantry's opening.
REFERENCES:
patent: 4629989 (1986-12-01), Riehl et al.
patent: 4727328 (1988-02-01), Carper et al.
patent: 4771785 (1988-09-01), Duer
patent: 5066915 (1991-11-01), Omori et al.
Arana Louis
Kabushiki Kaisha Toshiba
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