JPS60149263U - Matching circuit for nuclear magnetic resonance equipment - Google Patents
Matching circuit for nuclear magnetic resonance equipmentInfo
- Publication number
- JPS60149263U JPS60149263U JP3687784U JP3687784U JPS60149263U JP S60149263 U JPS60149263 U JP S60149263U JP 3687784 U JP3687784 U JP 3687784U JP 3687784 U JP3687784 U JP 3687784U JP S60149263 U JPS60149263 U JP S60149263U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic resonance
- nuclear magnetic
- matching circuit
- transmitting coil
- impedance
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の核磁気共鳴装置の整合回路を示す回路図
、第２図はこの考案の一実施例による核磁気共鳴装置の
整合回路を示す回路図である。
１・・・送信コイル、２ａ、２ｂ＊ ２ｃ・・・可変
コンデンサ、３・・・平衡・不平衡変換器、５・・・イ
ンピーダンス変換器。なお図中同一符号は同−又は相当
部分を示す。FIG. 1 is a circuit diagram showing a matching circuit of a conventional nuclear magnetic resonance apparatus, and FIG. 2 is a circuit diagram showing a matching circuit of a nuclear magnetic resonance apparatus according to an embodiment of the present invention. 1... Transmission coil, 2a, 2b* 2c... Variable capacitor, 3... Balanced/unbalanced converter, 5... Impedance converter. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Claims (5)
ルに電流を流す高周波電源との整合をとる核磁気共鳴装
置の整合回路において、上記送信コイルのインピーダン
スを調整するための可変コンデンサと、上記送信コイル
と高周波電源の平衡・不平衡性を変換する平衡・不平衡
変換器と、該平衡・不平衡変換器と上記高周波電源との
間に設けられ送信コイル側のインピーダンスと上記高周
波電源の出力インピーダンスとを整合させるためのイン
ピーダンス変換器とを備えたことを特徴とする核磁気共
鳴装置の整合回路。(1) In a matching circuit of a nuclear magnetic resonance apparatus that matches a transmitting coil in a nuclear magnetic resonance apparatus with a high-frequency power supply that supplies current to the transmitting coil, a variable capacitor for adjusting the impedance of the transmitting coil, and a variable capacitor for adjusting the impedance of the transmitting coil; A balanced/unbalanced converter that converts the balance/unbalance between the coil and the high frequency power source, an impedance on the transmitting coil side provided between the balanced/unbalanced converter and the high frequency power source, and an output impedance of the high frequency power source. A matching circuit for a nuclear magnetic resonance apparatus, comprising: an impedance converter for matching.
長さを持つ同軸ケーブルを用いたことを特゛徴とする実
用新案登録請求の範囲第１項記載の核磁気共鳴装置の整
合回路。(2) The nuclear magnetic resonance apparatus according to claim 1, which is characterized in that a coaxial cable having a length of 1/2 wavelength is used as the balanced/unbalanced converter. matching circuit.
の長さを持つ伝送線路を用いたことを特徴とする実用新
案登録請求の範囲第１項又は第２項記載の核磁気共鳴装
置の整合回路。(3) Matching of the nuclear magnetic resonance apparatus according to claim 1 or 2 of the utility model registration claim, characterized in that a transmission line having a length of a quarter wavelength is used as the impedance converter. circuit.
の長さを持つ伝送線路と２分の１波長の整数倍の長さを
持つ伝送線路とを直列接続したものを用いたことを特徴
とする実用新案登録請求の範囲第１項又は第２項記載の
核磁気共鳴装置の整合回路。(4) The impedance converter is characterized by using a transmission line having a length of a quarter wavelength and a transmission line having a length of an integral multiple of a half wavelength connected in series. A matching circuit for a nuclear magnetic resonance apparatus according to claim 1 or 2 of the utility model registration claim.
記高周波電源は不平衡型の高周波電源であることを特徴
とする実用新案登録請求の範囲第１項ないし第４項のい
ずれかに記載の核磁気共鳴装置の整合回路。
゛(5) The above-mentioned transmitting coil is a balanced type transmitting coil, and the above-mentioned high frequency power source is an unbalanced type high frequency power source, as described in any one of claims 1 to 4 of the utility model registration claims. matching circuit for nuclear magnetic resonance equipment.
゛
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3687784U JPS60149263U (en) | 1984-03-13 | 1984-03-13 | Matching circuit for nuclear magnetic resonance equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3687784U JPS60149263U (en) | 1984-03-13 | 1984-03-13 | Matching circuit for nuclear magnetic resonance equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60149263U true JPS60149263U (en) | 1985-10-03 |
Family
ID=30542467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3687784U Pending JPS60149263U (en) | 1984-03-13 | 1984-03-13 | Matching circuit for nuclear magnetic resonance equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60149263U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008180510A (en) * | 2007-01-23 | 2008-08-07 | Yamagata Univ | Resonator and electron spin resonance spectrometer |
-
1984
- 1984-03-13 JP JP3687784U patent/JPS60149263U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008180510A (en) * | 2007-01-23 | 2008-08-07 | Yamagata Univ | Resonator and electron spin resonance spectrometer |
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