Patent ID: 11914009
Assignee: JEOL LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An NMR apparatus, comprising:
an NMR probe configured to hold a sample therein, the NMR probe being configured to be used under low temperature;
a depressurizing device configured to depressurize the NMR probe;
a gas supply device configured to supply gas into the NMR probe to thereby pressurize the NMR probe; and
a control device configured to control depressurization using the depressurizing device and pressurization using the gas supply device,
wherein
the control device alternately repeats depressurization of the NMR probe using the depressurizing device, and pressurization of the NMR probe using the gas supply device before blowing a cooling gas into the NMR probe and until a percentage of an amount of air remaining in the NMR probe after replacement with the gas from the gas supply device becomes equal to a target value.