Turbine having a rotor forming a nutation and precession movemen

Details Turbine having a rotor forming a nutation and precession movemen Turbine having a rotor forming a nutation and precession movemen

1990-07-24

1992-10-27

Arana, Louis

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

324318, G01V 300

Patent

active

051592711

ABSTRACT:
Turbine for the analysis of samples by nuclear magnetic resonance. It comprises a rotor (7) having a spherical central core (8), whereof a cavity (9) contains the solid sample to be analyzed. Two conical surfaces are provided on either side of the central core (8) for rolling on two conical surfaces (13) of the stator. Blades are driven by a flow of compressed gas. This arrangement makes it possible to move the rotor (7) very rapidly, while respecting a constant ratio of the nutation and precession rotation speeds.

REFERENCES:
patent: 3588677, Kleiman et al.
patent: 4510450 (1985-04-01), Brown
patent: 4899111 (1990-02-01), Pines et al.
Molecular Physics, 1988, vol. 65, No. 4, pp. 1013-1018.
"Double Rotor for solid-state NMR" by A. Samoson et al. Rev. Sci. Instrum. 60(10) Oct. 1989 pp. 3239-3241.

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