JPH0230020U - - Google Patents
Info
- Publication number
- JPH0230020U JPH0230020U JP10870288U JP10870288U JPH0230020U JP H0230020 U JPH0230020 U JP H0230020U JP 10870288 U JP10870288 U JP 10870288U JP 10870288 U JP10870288 U JP 10870288U JP H0230020 U JPH0230020 U JP H0230020U
- Authority
- JP
- Japan
- Prior art keywords
- prism
- light
- liquid
- emitting element
- receiving element
- 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
- 239000007788 liquid Substances 0.000 claims description 6
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Description
第１図は第１実施例の斜視図、第２図はその断
面図、第３図は第２実施例の斜視図、第４図はそ
の断面図である。
１：ホルダ、３：フオトリフレクタ、４：発光
素子、５：受光素子、８：プリズム、９：導液部
。
FIG. 1 is a perspective view of the first embodiment, FIG. 2 is a sectional view thereof, FIG. 3 is a perspective view of the second embodiment, and FIG. 4 is a sectional view thereof. 1: Holder, 3: Photoreflector, 4: Light emitting element, 5: Light receiving element, 8: Prism, 9: Liquid guiding part.
Claims (1)
し、前記プリズムの外面が空気に触れているとき
は前記発光素子から発せられた光が前記プリズム
の他の２面に反射して受光素子で受光され、前記
プリズムの外面が液体に触れているときは前記発
光素子から発せられた光が前記プリズムの外へ屈
折して出ていつて前記受光素子で受光されないこ
とにより、液面がプリズムの外面に達したか否か
を検出するようにした液面センサにおいて、前記
プリズムの尖端を下向きに配置し、該尖端に小幅
の導液部を突成したことを特徴とする液面センサ
。 A light emitting element and a light receiving element are arranged side by side on the back surface of the prism, and when the outer surface of the prism is in contact with air, the light emitted from the light emitting element is reflected on the other two surfaces of the prism and is received by the light receiving element. When the outer surface of the prism is in contact with the liquid, the light emitted from the light-emitting element is refracted out of the prism and is not received by the light-receiving element, causing the liquid surface to touch the outer surface of the prism. A liquid level sensor configured to detect whether or not a liquid level has been reached, characterized in that the tip of the prism is disposed downward, and a narrow liquid guide portion is formed at the tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10870288U JPH0230020U (en) | 1988-08-18 | 1988-08-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10870288U JPH0230020U (en) | 1988-08-18 | 1988-08-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0230020U true JPH0230020U (en) | 1990-02-26 |
Family
ID=31344285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10870288U Pending JPH0230020U (en) | 1988-08-18 | 1988-08-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0230020U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5826226A (en) * | 1981-08-07 | 1983-02-16 | Fuji Electric Corp Res & Dev Ltd | Detector for liquid level |
-
1988
- 1988-08-18 JP JP10870288U patent/JPH0230020U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5826226A (en) * | 1981-08-07 | 1983-02-16 | Fuji Electric Corp Res & Dev Ltd | Detector for liquid level |