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Machine translation
1. (WO1981000455) NUCLEAR MAGNETIC RESONANCE GYRO
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/000455    International Application No.:    PCT/US1980/000972
Publication Date: 19.02.1981 International Filing Date: 31.07.1980
IPC:
G01C 19/60 (2006.01)
Applicants:
Inventors:
Priority Data:
62662 01.08.1979 US
Title (EN) NUCLEAR MAGNETIC RESONANCE GYRO
(FR) GYROSCOPE A RESONANCE MAGNETIQUE NUCLEAIRE
Abstract: front page image
(EN)Nuclear magnetic resonance gyro including an enclosure (20) having a first region (23), a second region (24) and a connecting region (25), the enclosure (20) confining a quantity of an inert gas with two odd mass numbered isotopes capable of undergoing nuclear magnetic resonance. A magnetic field (32) is applied to the enclosure (20), and the gas in the first region (23) is pumped to an excited state to provide both polarized ground state atoms and discharge products therein, the atoms then being diffused through the connecting region (25), acting as a filter with respect to undesired discharge products, to the second region (24) where only polarized ground state atoms, which have retained their polarization, are able to propagate. Nuclear magnetic resonance transitions occur in the second region (24), and the frequency changes and the precession of the polarized atoms about the applied magnetic field (32) due to the rotational motion of the enclosure (20) are sensed by sensing circuitry (26, 21, 34).
(FR)Gyroscope a resonance magnetique nucleaire comprenant une enceinte (20) composee d"une premiere region (23), d"une deuxieme region (24) et une region de connexion (25), cette enceinte (20) renfermant une certaine quantite de gaz inerte avec deux isotopes de masse atomique impaire capables de subir une resonance magnetique nucleaire. Un champ magnetique (32) est applique a l"enceinte (20), et le gaz dans la premiere region (23) est pompe jusqu"a un etat d"excitation pour produire des atomes polarises a l"etat fondamental et des produits de decharge a l"interieur, les atomes etant ensuite diffuses a travers la region de connexion (25), faisant office de filtre par rapport aux produits de decharge non desires, vers la deuxieme region (24) ou seulement des atomes polarises a l"etat fondamental, qui ont garde leur polarisation, peuvent se propager. Des transitions dans la resonance magnetique nucleaire ont lieu dans la deuxieme region 824) et les changements de frequence et la precession des atomes polarises autour du champ magnetique applique (32) dus au mouvement de rotation de l"enceinte (20) sont detectes par des circuits de detection (26, 21, 34).
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)