JPS6296557U - - Google Patents

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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
Application number
JP18811685U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP18811685U priority Critical patent/JPS6296557U/ja
Publication of JPS6296557U publication Critical patent/JPS6296557U/ja
Pending legal-status Critical Current

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  • Magnetic Resonance Imaging Apparatus (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

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)

【実用新案登録請求の範囲】[Scope of utility model registration request] 異なる周波数ｆ１，ｆ２を持つ高周波を試料の
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.
JP18811685U 1985-12-06 1985-12-06 Pending JPS6296557U (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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