JPS6443240A - High frequency coil apparatus - Google Patents
High frequency coil apparatusInfo
- Publication number
- JPS6443240A JPS6443240A JP62199063A JP19906387A JPS6443240A JP S6443240 A JPS6443240 A JP S6443240A JP 62199063 A JP62199063 A JP 62199063A JP 19906387 A JP19906387 A JP 19906387A JP S6443240 A JPS6443240 A JP S6443240A
- Authority
- JP
- Japan
- Prior art keywords
- high frequency
- phase
- transmitting
- receiving coil
- coil pairs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 abstract 1
Abstract
PURPOSE:To enhance the S/N ratio of a receiving signal, by mounting a phase shifting/matching means for making the phase of a high frequency current different by the phase difference corresponding to the shift of the spatial arrangement of each transmitting and receiving coil pair and performing tuning and impedance conversion. CONSTITUTION:The 90 deg. phase shifter 5, synthesizer 6 and matching circuit 2 of a high frequency coil apparatus form a phase shifting/matching means 7 for making the phases of the high frequency currents induced in transmitting and receiving coil pairs 1, 4 different by the phase corresponding to the shift of the spatial arrangement of the transmitting and receiving coil pairs 1, 4 and allowing the high frequency currents to match with each other. The angle formed by each of coils 1a, 1b, 4a, 4b is almost 90 deg.. The noises generated in the transmitting and receiving coil pairs 1, 4 are set off each other when inputted to and outputted from the synthesizer 6 and the S/N ratio of a signal is improved.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62199063A JPS6443240A (en) | 1987-08-11 | 1987-08-11 | High frequency coil apparatus |
US07/172,885 US4857849A (en) | 1987-03-25 | 1988-03-25 | High frequency magnetic field generator for nuclear magnetic resonance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62199063A JPS6443240A (en) | 1987-08-11 | 1987-08-11 | High frequency coil apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6443240A true JPS6443240A (en) | 1989-02-15 |
Family
ID=16401493
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62199063A Pending JPS6443240A (en) | 1987-03-25 | 1987-08-11 | High frequency coil apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6443240A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05113473A (en) * | 1990-04-24 | 1993-05-07 | General Electric Co <Ge> | Radio frequency magnetic coil for nmr and power splitter |
-
1987
- 1987-08-11 JP JP62199063A patent/JPS6443240A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05113473A (en) * | 1990-04-24 | 1993-05-07 | General Electric Co <Ge> | Radio frequency magnetic coil for nmr and power splitter |
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