JPS6296557U - - Google Patents
Info
- Publication number
- JPS6296557U JPS6296557U JP18811685U JP18811685U JPS6296557U JP S6296557 U JPS6296557 U JP S6296557U JP 18811685 U JP18811685 U JP 18811685U JP 18811685 U JP18811685 U JP 18811685U JP S6296557 U JPS6296557 U JP S6296557U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- detection means
- difference
- ratio
- level
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 238000005481 NMR spectroscopy Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
Landscapes
- Magnetic Resonance Imaging Apparatus (AREA)
Description
第1図は本考案の一実施例の構成を示すブロツ
ク図、第2図はNMRスペクトルを示す図である
。
1:磁石、2:照射コイル、3:試料管、4,
5:高周波発振器、6,7:可変減衰器、8:合
成回路、10,11:レベル検出回路、12:レ
ベル比較回路、13:制御回路。
FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, and FIG. 2 is a diagram showing an NMR spectrum. 1: Magnet, 2: Irradiation coil, 3: Sample tube, 4,
5: High frequency oscillator, 6, 7: Variable attenuator, 8: Synthesizing circuit, 10, 11: Level detection circuit, 12: Level comparison circuit, 13: Control circuit.
Claims (1)
回りに巻回した照射コイルへ供給し、高周波磁場
として試料に照射する核磁気共鳴装置における高
周波照射装置において、前記2種の高周波の信号
レベルを検出するレベル検出手段と、該検出手段
により検出された2つの信号レベルの差又は比を
求める差又は比検出手段と、該差又は比検出手段
から得られる信号と予め設定された差又は比信号
に基づいて前記2種の高周波信号の内の一方のレ
ベルを可変するレベル可変手段とを設けたことを
特徴とする高周波照射装置。 In a high-frequency irradiation device in a nuclear magnetic resonance apparatus that supplies high-frequency waves with different frequencies f 1 and f 2 to an irradiation coil wound around a sample and irradiates the sample as a high-frequency magnetic field, the signal levels of the two types of high-frequency waves are A level detection means for detecting, a difference or ratio detection means for determining the difference or ratio between two signal levels detected by the detection means, and a preset difference or ratio signal between the signal obtained from the difference or ratio detection means. A high-frequency irradiation device comprising: a level variable means for varying the level of one of the two types of high-frequency signals based on.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18811685U JPS6296557U (en) | 1985-12-06 | 1985-12-06 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18811685U JPS6296557U (en) | 1985-12-06 | 1985-12-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6296557U true JPS6296557U (en) | 1987-06-19 |
Family
ID=31139183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18811685U Pending JPS6296557U (en) | 1985-12-06 | 1985-12-06 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6296557U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005261831A (en) * | 2004-03-22 | 2005-09-29 | Hitachi Ltd | Radio wave transmitting circuit using arbitrary waveform generator and nuclear magnetic resonance apparatus using it |
-
1985
- 1985-12-06 JP JP18811685U patent/JPS6296557U/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005261831A (en) * | 2004-03-22 | 2005-09-29 | Hitachi Ltd | Radio wave transmitting circuit using arbitrary waveform generator and nuclear magnetic resonance apparatus using it |
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