JPS6444548U - - Google Patents
Info
- Publication number
- JPS6444548U JPS6444548U JP14014787U JP14014787U JPS6444548U JP S6444548 U JPS6444548 U JP S6444548U JP 14014787 U JP14014787 U JP 14014787U JP 14014787 U JP14014787 U JP 14014787U JP S6444548 U JPS6444548 U JP S6444548U
- Authority
- JP
- Japan
- Prior art keywords
- frequency oscillation
- oscillation type
- proximity switch
- type proximity
- cover body
- 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
- 230000010355 oscillation Effects 0.000 claims description 9
- 230000005291 magnetic effect Effects 0.000 claims description 3
- 230000004907 flux Effects 0.000 claims description 2
- 230000005294 ferromagnetic effect Effects 0.000 claims 2
- 239000002184 metal Substances 0.000 claims 2
- 229910000889 permalloy Inorganic materials 0.000 claims 1
- 230000035699 permeability Effects 0.000 claims 1
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
Landscapes
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Description
第１図は、この考案の一実施例に係る高周波発
振形近接スイツチの縦断面図、第２図は、同高周
波発振形近接スイツチの変型を示す縦断面図、第
３図は、同高周波発振形近接スイツチの他の変型
を示す縦断面図、第４図ａは、同高周波発振形近
接スイツチにおける磁束の拡がりを示す図、第４
図ｂは、従来の高周波発振形近接スイツチにおけ
る磁束の拡がりを示す図、第５図は、実施例高周
波発振形近接スイツチと従来の高周波発振形近接
スイツチの、それぞれのコンダクタンス距離変化
率を比較して示す図である。
２：ケース、３：センサ部、４：センサコイル
、５：コア、１２ｃ：ケース前半部、２６：カバ
ー体。
FIG. 1 is a vertical cross-sectional view of a high-frequency oscillation type proximity switch according to an embodiment of the invention, FIG. 2 is a vertical cross-sectional view showing a modification of the high-frequency oscillation type proximity switch, and FIG. Fig. 4a is a vertical cross-sectional view showing another modification of the high-frequency oscillation type proximity switch;
Figure b shows the spread of magnetic flux in a conventional high-frequency oscillation type proximity switch, and Figure 5 compares the rate of change in conductance distance between the example high-frequency oscillation type proximity switch and the conventional high-frequency oscillation type proximity switch. FIG. 2: case, 3: sensor section, 4: sensor coil, 5: core, 12c: front half of case, 26: cover body.
Claims (1)
するコアとを有するセンサ部と、このセンサ部を
覆い、漏洩磁束をシールドするカバー体とを備え
てなる高周波発振形近接スイツチにおいて、 前記カバー体を、初透磁率が高く、導電率が低
い強磁性金属としたことを特徴とする高周波発振
形近接スイツチ。 (2) 前記強磁性金属は、パーマロイである実用
新案登録請求の範囲第１項記載の高周波発振形近
接スイツチ。[Claims for Utility Model Registration] (1) A high-frequency oscillation type comprising a sensor part having a sensor coil and a core in which the sensor coil is disposed, and a cover body that covers the sensor part and shields leakage magnetic flux. A high frequency oscillation type proximity switch, characterized in that the cover body is made of a ferromagnetic metal with high initial magnetic permeability and low electrical conductivity. (2) The high frequency oscillation type proximity switch according to claim 1, wherein the ferromagnetic metal is permalloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14014787U JPS6444548U (en) | 1987-09-14 | 1987-09-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14014787U JPS6444548U (en) | 1987-09-14 | 1987-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6444548U true JPS6444548U (en) | 1989-03-16 |
Family
ID=31404053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14014787U Pending JPS6444548U (en) | 1987-09-14 | 1987-09-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6444548U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007074519A (en) * | 2005-09-08 | 2007-03-22 | Yamatake Corp | High frequency oscillating proximity sensor |
| JP2011216256A (en) * | 2010-03-31 | 2011-10-27 | Yamatake Corp | Proximity switch |
-
1987
- 1987-09-14 JP JP14014787U patent/JPS6444548U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007074519A (en) * | 2005-09-08 | 2007-03-22 | Yamatake Corp | High frequency oscillating proximity sensor |
| JP4596471B2 (en) * | 2005-09-08 | 2010-12-08 | 株式会社山武 | High-frequency oscillation type proximity sensor |
| JP2011216256A (en) * | 2010-03-31 | 2011-10-27 | Yamatake Corp | Proximity switch |
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