NMR measurement apparatus and method of controlling rotation of sample tube
US11156681B2 · kind B2 · utility
1Cited by
4References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 19, 2019 |
| Grant date | Oct 26, 2021 |
| Priority date | — |
| Expiry date | Jan 16, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/31
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A rotational force is applied to a sample tube by blowing of a drive gas to the sample tube. A spinning frequency of the sample tube is sequentially detected as a detection value. Acceleration control to gradually increase a pressure of the drive gas is executed until the detection value reaches a target value. In a process of the acceleration control, abnormality is determined based on a change with respect to time (difference: ΔF) of the detection value. The determination is executed in a section of interest including a resonance frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.