JPS62103211U - - Google Patents
Info
- Publication number
- JPS62103211U JPS62103211U JP19421585U JP19421585U JPS62103211U JP S62103211 U JPS62103211 U JP S62103211U JP 19421585 U JP19421585 U JP 19421585U JP 19421585 U JP19421585 U JP 19421585U JP S62103211 U JPS62103211 U JP S62103211U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic circuit
- permanent magnets
- magnetic
- long axis
- model registration
- 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
- 230000005415 magnetization Effects 0.000 claims 2
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Magnetic Resonance Imaging Apparatus (AREA)
Description
第１図は本考案の磁気回路の実施例における外
観斜視図、第２図は第１図における磁気回路の１
／４部分における磁化方向を示す正面図、第３図
は第１図における磁気回路の永久磁石内および小
判形状内における磁力線の流れのパタンを示す正
面磁力線図、第４図は本考案による他の実施例で
小判形状内に一組のコイルが配設された外正面図
、第５図は従来一般に使用されている核磁気共鳴
装置のブロツク図である。
なお図において１：永久磁石、２：コイル、１
３：磁力線、１４：直線部、１５：円弧部。
Fig. 1 is an external perspective view of an embodiment of the magnetic circuit of the present invention, and Fig. 2 is an example of the magnetic circuit in Fig. 1.
3 is a front view showing the flow pattern of magnetic lines of force within the permanent magnet and the oval shape of the magnetic circuit in FIG. FIG. 5 is an external front view showing a set of coils arranged in an oval shape according to the embodiment, and is a block diagram of a conventional nuclear magnetic resonance apparatus commonly used. In the figure, 1: permanent magnet, 2: coil, 1
3: Line of magnetic force, 14: Straight section, 15: Arc section.
Claims (1)
端面を小判形状に形成してなる磁気回路において
、長軸と平行な上、下の直線部１４の位置の前記
永久磁石を長軸と垂直方向に磁化し、左、右の円
弧部１５の位置の永久磁石１を平行で上、下方向
と逆方向に磁化するとともに、前記直線部１４お
よび円弧部１５間においては前記永久磁石１を順
次磁化方向の角度を変えそれぞれ前記直線部１４
と円弧部１５の方向に合致させてなる磁気回路。 ２ 前記小判形状磁気回路の内側に前記直線部の
磁化によつて生ずる磁力線１３の方向に磁場を発
生させる微調整用コイル２を配設してなる前記実
用新案登録請求の範囲第１項記載の磁気回路。[Claims for Utility Model Registration] 1. In a magnetic circuit formed by bonding a plurality of segment-shaped permanent magnets 1 and forming the end faces into an oval shape, the above-mentioned magnetic circuit at the upper and lower straight portions 14 parallel to the long axis. The permanent magnets are magnetized in a direction perpendicular to the long axis, and the permanent magnets 1 at the left and right arcuate portions 15 are magnetized parallel to each other in the upper and lower directions, and between the straight portion 14 and the arcuate portion 15. The angle of the magnetization direction of the permanent magnet 1 is sequentially changed and the linear portion 14 is
and a magnetic circuit made to coincide with the direction of the arc portion 15. 2. The utility model registration claim 1, wherein a fine adjustment coil 2 is disposed inside the oval-shaped magnetic circuit to generate a magnetic field in the direction of magnetic lines of force 13 generated by magnetization of the straight portion. magnetic circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19421585U JPS62103211U (en) | 1985-12-19 | 1985-12-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19421585U JPS62103211U (en) | 1985-12-19 | 1985-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62103211U true JPS62103211U (en) | 1987-07-01 |
Family
ID=31150979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19421585U Pending JPS62103211U (en) | 1985-12-19 | 1985-12-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62103211U (en) |
-
1985
- 1985-12-19 JP JP19421585U patent/JPS62103211U/ja active Pending
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