| 摘要 |
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). |
