JPH0381613U - - Google Patents
Info
- Publication number
- JPH0381613U JPH0381613U JP14288189U JP14288189U JPH0381613U JP H0381613 U JPH0381613 U JP H0381613U JP 14288189 U JP14288189 U JP 14288189U JP 14288189 U JP14288189 U JP 14288189U JP H0381613 U JPH0381613 U JP H0381613U
- Authority
- JP
- Japan
- Prior art keywords
- central axis
- ring
- holes
- permanent magnets
- cylindrical permanent
- 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
Landscapes
- Magnetic Resonance Imaging Apparatus (AREA)
Description
第１図は本考案に係るリング状ヨークの断面図
、第２図は本考案に係る装置の概略側面図である
。
図中、１０，２２，２４，２６，２８……夫々
リング状ヨーク、１４……リング状ヨークに設け
た貫通孔、１６，３２，３４，３６，３８……夫
々円筒状永久磁石を示す。
FIG. 1 is a sectional view of a ring-shaped yoke according to the present invention, and FIG. 2 is a schematic side view of the device according to the present invention. In the figure, 10, 22, 24, 26, 28... each show a ring-shaped yoke, 14... a through hole provided in the ring-shaped yoke, and 16, 32, 34, 36, 38... each show a cylindrical permanent magnet.
Claims (1)
れた複数の貫通孔を中心軸の周囲に夫々有する第
１及び第２のリング状ヨークと、 中心軸方向に延び且つ略々等間隔に配置された
複数の貫通孔を中心軸の周囲に夫々有する複数の
第３のリング状ヨークと、 予め所定方向に磁化され、上記第１，第２及び
上記複数の第３の貫通孔の夫々に挿入された複数
の円筒状永久磁石と、 を備え、 上記第１、第２及び上記複数の第３のリング状
ヨークは、夫々の中心軸が略々一直線状になるよ
うに配置され、且つ、上記複数の第３のリング状
ヨークが上記第１及び第２のリング状ヨークの間
に位置にするように互いに隣接して配置したこと
を特徴とする磁場発生装置。 (2) 上記第１、第２及び第３の円筒状永久磁石
の夫々は、挿入された貫通孔内で回転によつて位
置調整が可能である実用新案登録請求の範囲第１
項に記載の装置。 (3) 中心軸方向に延び且つ略々等間隔に配置さ
れた複数の貫通孔を中心軸の周囲に有する少なく
とも１個の第４のリング状ヨークと、 予め所定方向に磁化され、上記第４の貫通孔の
夫々に挿入された複数の円筒状永久磁石と、 を更に備えた、 実用新案登録請求の範囲第１項に記載の装置。 (4) 上記第４の円筒状永久磁石の夫々は、挿入
された貫通孔内で回転によつて位置調整が可能で
ある実用新案登録請求の範囲第３項に記載の装置
。[Claims for Utility Model Registration] (1) First and second ring-shaped yokes each having a plurality of through holes extending in the direction of the central axis and arranged at approximately equal intervals around the central axis; and a central axis. a plurality of third ring-shaped yokes each having a plurality of through holes extending in the direction and arranged at approximately equal intervals around the central axis; a plurality of cylindrical permanent magnets inserted into each of the third through holes, the first, second, and plurality of third ring-shaped yokes each have a central axis that is substantially in a straight line. and the plurality of third ring-shaped yokes are arranged adjacent to each other so as to be located between the first and second ring-shaped yokes. Device. (2) Each of the first, second and third cylindrical permanent magnets can be adjusted in position by rotation within the inserted through hole.
The equipment described in section. (3) at least one fourth ring-shaped yoke extending in the direction of the central axis and having a plurality of through holes arranged at approximately equal intervals around the central axis; The device according to claim 1, further comprising: a plurality of cylindrical permanent magnets inserted into each of the through holes of the device. (4) The device according to claim 3, wherein the position of each of the fourth cylindrical permanent magnets can be adjusted by rotation within the inserted through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14288189U JPH0517845Y2 (en) | 1989-12-11 | 1989-12-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14288189U JPH0517845Y2 (en) | 1989-12-11 | 1989-12-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0381613U true JPH0381613U (en) | 1991-08-21 |
| JPH0517845Y2 JPH0517845Y2 (en) | 1993-05-13 |
Family
ID=31689689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14288189U Expired - Lifetime JPH0517845Y2 (en) | 1989-12-11 | 1989-12-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0517845Y2 (en) |
-
1989
- 1989-12-11 JP JP14288189U patent/JPH0517845Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0517845Y2 (en) | 1993-05-13 |