JPS63111110U - - Google Patents
Info
- Publication number
- JPS63111110U JPS63111110U JP319187U JP319187U JPS63111110U JP S63111110 U JPS63111110 U JP S63111110U JP 319187 U JP319187 U JP 319187U JP 319187 U JP319187 U JP 319187U JP S63111110 U JPS63111110 U JP S63111110U
- Authority
- JP
- Japan
- Prior art keywords
- elements
- conductor ring
- ring plates
- series
- mri apparatus
- 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
- 239000004020 conductor Substances 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Magnetic Resonance Imaging Apparatus (AREA)
Description
第１図はこの考案の一実施例の分解斜視図、第
２図は第１図の等価回路図、第３図及び第４図は
それぞれ変形例の分解斜視図、第５図及び第６図
は従来例の模式的な斜視図である。
１，２……外側導体リング板、３，７……導体
平板、４，１０，２１……結合コンデンサ、５，
６……内側導体リング板、８……周波数同調用可
変コンデンサ、９……インピーダンス整合用可変
コンデンサ、１１……信号源、１２，１３……誘
電体リング、２０……鞍型コイル、３１，７１…
…短冊状導体平板。
Figure 1 is an exploded perspective view of one embodiment of this invention, Figure 2 is an equivalent circuit diagram of Figure 1, Figures 3 and 4 are exploded perspective views of modified examples, and Figures 5 and 6. is a schematic perspective view of a conventional example. 1, 2... Outer conductor ring plate, 3, 7... Conductor flat plate, 4, 10, 21... Coupling capacitor, 5,
6... Inner conductor ring plate, 8... Variable capacitor for frequency tuning, 9... Variable capacitor for impedance matching, 11... Signal source, 12, 13... Dielectric ring, 20... Saddle-shaped coil, 31, 71...
...Rectangular conductor flat plate.
Claims (1)
を配置することによつてそれぞれ形成される２つ
の分布容量素子と、一方側の導体リング板同士及
び他方側の導体リング板同士を２つの分布容量素
子の間で連結するそれぞれ第１、第２の直線状ア
ンテナエレメントと、該第１、第２の直線状アン
テナエレメントの一方に直列に挿入された結合コ
ンデンサと他方に直列に挿入された周波数同調用
可変コンデンサとを有するＭＲＩ装置のＲＦアン
テナコイル。 Two distributed capacitance elements are each formed by arranging two conductor ring plates to sandwich a dielectric ring, and two distributed capacitance elements are formed by connecting the conductor ring plates on one side and the conductor ring plates on the other side. first and second linear antenna elements connected between the elements; a coupling capacitor inserted in series with one of the first and second linear antenna elements; and a frequency tuning capacitor inserted in series with the other. An RF antenna coil for an MRI apparatus having a variable capacitor for use in an MRI apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP319187U JPH0446727Y2 (en) | 1987-01-13 | 1987-01-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP319187U JPH0446727Y2 (en) | 1987-01-13 | 1987-01-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63111110U true JPS63111110U (en) | 1988-07-16 |
| JPH0446727Y2 JPH0446727Y2 (en) | 1992-11-04 |
Family
ID=30782723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP319187U Expired JPH0446727Y2 (en) | 1987-01-13 | 1987-01-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0446727Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6048868B2 (en) * | 2012-06-29 | 2016-12-21 | 国立研究開発法人理化学研究所 | RF coil for measuring nuclear magnetic resonance phenomena |
-
1987
- 1987-01-13 JP JP319187U patent/JPH0446727Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0446727Y2 (en) | 1992-11-04 |
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