| 摘要 |
PROBLEM TO BE SOLVED: To provide a nuclear magnetic resonance apparatus, capable of fully demonstrating original performance of a vibration-free mechanism, even in an environment of a strong magnetic field, for suppressed vibration, resulting in precise measurement. SOLUTION: The nuclear magnetic resonance apparatus 1A comprises a nuclear magnetic resonance means 2 which reveals atomic arrangements and molecular structure of a material, based on the damping signal of an induced electromotive force that follows the resonance precession of magnetic moment of a nucleus, which is caused by the irradiation of electromagnetic wave pulses in the RF region, and a vibration-free mechanism 3 for suppressing vibration. The vibration-free mechanism 3 is connected to a pressurizing air source 34 via an electropneumatic converter 25, and an air spring 11, that acts as a force for vibration free is provided to the nuclear magnetic resonance means 2 as an actuator, for active vibration free. The electropneumatic converter 25 is arranged at a distance away from the nuclear magnetic resonance means 2 such that malfunctions or defective operations do not occur due to the effect of magnetic field generated by the nuclear magnetic resonance means 2. COPYRIGHT: (C)2005,JPO&NCIPI
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