JPH0325184U - - Google Patents
Info
- Publication number
- JPH0325184U JPH0325184U JP8635489U JP8635489U JPH0325184U JP H0325184 U JPH0325184 U JP H0325184U JP 8635489 U JP8635489 U JP 8635489U JP 8635489 U JP8635489 U JP 8635489U JP H0325184 U JPH0325184 U JP H0325184U
- Authority
- JP
- Japan
- Prior art keywords
- core
- sensor section
- sensor
- proximity
- detection coil
- 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
- 230000010355 oscillation Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Description
第１図は、本考案の実施例を示す近接センサの
センサ部の正面断面図。第２図は、従来の近接セ
ンサのセンサ部の正面断面図。第３図は、近接セ
ンサの回路ブロツク図である。
１，１１…円板コア、２，３…円柱コア、３…
凸状コア、４，１４…検知コイル、５，２１…磁
力線、１２…リングコア、１３…円柱コア、１５
…センサ部、１６…発振回路、１７…ケーブル、
１８…金属物質、１９…弁別回路、２０…出力回
路。
FIG. 1 is a front sectional view of a sensor section of a proximity sensor showing an embodiment of the present invention. FIG. 2 is a front sectional view of a sensor section of a conventional proximity sensor. FIG. 3 is a circuit block diagram of the proximity sensor. 1, 11... Disk core, 2, 3... Cylindrical core, 3 ...
Convex core, 4, 14... Detection coil, 5, 21... Line of magnetic force, 12... Ring core, 13... Cylindrical core, 15
...sensor section, 16...oscillation circuit, 17...cable,
18...Metallic substance, 19...Discrimination circuit, 20...Output circuit.
Claims (1)
センサ部とケーブルを介して接続された発振回路
と、前記センサ部への金属物質の近接により前記
発振回路の発振状態を変化せしめ、信号を出力、
又は停止する出力回路とを有する近接センサにお
いて、前記センサ部の検知コイルに埋設したコア
の形状を、円板コアの一方の面の中心部に円柱コ
アを一体に形成した凸状コアとしたことを特徴と
する近接センサ。 a sensor section having a detection coil embedded in a core; an oscillation circuit connected to the sensor section via a cable; and a signal being output by changing the oscillation state of the oscillation circuit due to the proximity of a metal substance to the sensor section;
Alternatively, in a proximity sensor having an output circuit that stops, the core embedded in the detection coil of the sensor section has a shape of a convex core with a cylindrical core integrally formed at the center of one surface of a disc core. A proximity sensor featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989086354U JPH0754869Y2 (en) | 1989-07-21 | 1989-07-21 | Proximity sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989086354U JPH0754869Y2 (en) | 1989-07-21 | 1989-07-21 | Proximity sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0325184U true JPH0325184U (en) | 1991-03-14 |
| JPH0754869Y2 JPH0754869Y2 (en) | 1995-12-18 |
Family
ID=31635871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989086354U Expired - Lifetime JPH0754869Y2 (en) | 1989-07-21 | 1989-07-21 | Proximity sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0754869Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002125489A (en) * | 2000-10-25 | 2002-05-08 | Enseki Aojiru Kk | Method for culturing young leaf of rice plant and rice |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4924044U (en) * | 1972-06-01 | 1974-03-01 | ||
| JPS63105422A (en) * | 1986-10-22 | 1988-05-10 | 富士電機株式会社 | Proximity switch |
| JPS63221524A (en) * | 1987-03-09 | 1988-09-14 | 三成電気株式会社 | Shielding apparatus for high frequency type proximity sensor |
-
1989
- 1989-07-21 JP JP1989086354U patent/JPH0754869Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4924044U (en) * | 1972-06-01 | 1974-03-01 | ||
| JPS63105422A (en) * | 1986-10-22 | 1988-05-10 | 富士電機株式会社 | Proximity switch |
| JPS63221524A (en) * | 1987-03-09 | 1988-09-14 | 三成電気株式会社 | Shielding apparatus for high frequency type proximity sensor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002125489A (en) * | 2000-10-25 | 2002-05-08 | Enseki Aojiru Kk | Method for culturing young leaf of rice plant and rice |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0754869Y2 (en) | 1995-12-18 |
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