JPH0341406U - - Google Patents
Info
- Publication number
- JPH0341406U JPH0341406U JP10062389U JP10062389U JPH0341406U JP H0341406 U JPH0341406 U JP H0341406U JP 10062389 U JP10062389 U JP 10062389U JP 10062389 U JP10062389 U JP 10062389U JP H0341406 U JPH0341406 U JP H0341406U
- Authority
- JP
- Japan
- Prior art keywords
- surf
- coil
- axis
- loops
- coils
- 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 8
- 230000035945 sensitivity Effects 0.000 description 4
- 239000003990 capacitor Substances 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造図、第２図は
本考案の他の実施例の構造図、第３図は本考案の
更に他の実施例の構造図、第４図は本考案の更に
他の実施例の構造図、第５図は本考案の更に又他
の実施例の構造図、第６図は従来の１ループコイ
ルとその感度曲線の図、第７図は従来の８の字サ
ーフエスコイルとその感度曲線の図である。
１……１ループサーフエスコイル、２，５……
感度曲線、３……ＮＭＲ信号、４，１１……８の
字サーフエスコイル、１２，１３，２３，２６，
３２，３４……コンデンサ、１４，１６……周波
数微調整マツチング回路、１５，１７……プリア
ンプ、１８……コンバイナ、２１，２４……方形
サーフエスコイル、２２，２５……短絡辺、３１
，３３……変形８の字サーフエスコイル。
Fig. 1 is a structural diagram of one embodiment of the present invention, Fig. 2 is a structural diagram of another embodiment of the present invention, Fig. 3 is a structural diagram of yet another embodiment of the present invention, and Fig. 4 is a structural diagram of another embodiment of the present invention. Fig. 5 is a structural diagram of yet another embodiment of the invention, Fig. 6 is a diagram of a conventional one-loop coil and its sensitivity curve, and Fig. 7 is a diagram of a conventional one-loop coil and its sensitivity curve. FIG. 8 is a diagram of a figure 8 surf coil and its sensitivity curve. 1...1 Loop Surf S Coil, 2,5...
Sensitivity curve, 3... NMR signal, 4, 11... figure 8 surf coil, 12, 13, 23, 26,
32, 34... Capacitor, 14, 16... Frequency fine adjustment matching circuit, 15, 17... Preamplifier, 18... Combiner, 21, 24... Rectangular surf S coil, 22, 25... Short circuit side, 31
, 33...Modified figure 8 surf S coil.
Claims (1)
標軸の１軸に対称な２個のループに分離されたサ
ーフエスコイル４，２１，３３と、 該サーフエスコイル４，２１，３３に直角な位
置に配置された前記サーフエスコイルと同様に前
記平面直角座標軸のもう１軸に対称な２個のルー
プに分離されたサーフエスコイル１１，２４，３
１とから成ることを特徴とするＭＲＩのサーフエ
スコイル。[Claims for Utility Model Registration] Surf S coils 4, 21, and 33 separated into two loops that are made to flow current in opposite directions and are symmetrical about one axis of a coordinate axis perpendicular to the plane; and the Surf S coil 4. , 21, 33, the surf coils 11, 24, 3 are separated into two loops that are symmetrical about another axis of the plane orthogonal coordinate axis.
An MRI surf coil characterized by comprising: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989100623U JPH0717290Y2 (en) | 1989-08-29 | 1989-08-29 | MRI surface coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989100623U JPH0717290Y2 (en) | 1989-08-29 | 1989-08-29 | MRI surface coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0341406U true JPH0341406U (en) | 1991-04-19 |
| JPH0717290Y2 JPH0717290Y2 (en) | 1995-04-26 |
Family
ID=31649617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989100623U Expired - Fee Related JPH0717290Y2 (en) | 1989-08-29 | 1989-08-29 | MRI surface coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0717290Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02139610U (en) * | 1989-04-28 | 1990-11-21 |
-
1989
- 1989-08-29 JP JP1989100623U patent/JPH0717290Y2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02139610U (en) * | 1989-04-28 | 1990-11-21 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0717290Y2 (en) | 1995-04-26 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |