Invention Grant
- Patent Title: Device for highly precise synchronization of the NMR transmission frequency to the resonance frequency of an NMR line while taking into consideration a non-constant RF phase
- Patent Title (中): 用于在考虑非恒定RF相位时将NMR传输频率与NMR谱线的谐振频率进行高精度同步的装置
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Application No.: US12662388Application Date: 2010-04-14
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Publication No.: US08456165B2Publication Date: 2013-06-04
- Inventor: Arthur Schwilch , Michael Schenkel
- Applicant: Arthur Schwilch , Michael Schenkel
- Applicant Address: CH Faellanden
- Assignee: Bruker BioSpin AG
- Current Assignee: Bruker BioSpin AG
- Current Assignee Address: CH Faellanden
- Agent Paul Vincent
- Priority: DE102009002676 20090427
- Main IPC: G01R33/48
- IPC: G01R33/48 ; G01V3/00
Abstract:
A device has a first control loop (28) with which a frequency RF of an RF generator is synchronized with a resonance frequency F0 of an NMR line. A phase shifter (22) is provided to rotate the radio frequency phase of the NMR receiver system in the first control loop. The phase shifter is controlled by a second control loop (27) whose input signal comes from a signal extraction stage.
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