JPS55149874A - Level detector - Google Patents
Level detectorInfo
- Publication number
- JPS55149874A JPS55149874A JP13320378A JP13320378A JPS55149874A JP S55149874 A JPS55149874 A JP S55149874A JP 13320378 A JP13320378 A JP 13320378A JP 13320378 A JP13320378 A JP 13320378A JP S55149874 A JPS55149874 A JP S55149874A
- Authority
- JP
- Japan
- Prior art keywords
- float
- light
- reflection
- optical fiber
- free substance
- 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
- Level Indicators Using A Float (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
PURPOSE: To improve the safety in operation by using an optical method.
CONSTITUTION: The float 1 in which the light reflecting face 3, powdered reflection-free substance 4 and optical fiber 2 that consists of two circuits are provided is fixed to the inside of the water tank with the chain holder 5, one end of the optical fiber 2 is connected to both the light emission and reception parts 7, 8 of the detector 6. By this, when the liquid level 12 is low, the float 1 is in a vertical state, the reflection-free substance 4 is accumulated on the bottom of the float, which is the reflecting face, by its own weight, the light ray 9 that is applied from the light emission part 7 to the inside of the float through the optical fiber 2 is not sensed by the light reception part 8. On the other hand, when the liquid level becomes higher, the float 1 is floated, the reflection-free substance 4 is moved and the reflecting face is exposed, the light ray 9 is reflected from the bottom face 3 and is sensed by the light reception part 8, and consequently the output 10 is obtained. Accordingly a detection signal is converted into an electric signal at a distance from the water tank, electric leakage and calorification in the tank can be prevented.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13320378A JPS6025724B2 (en) | 1978-10-31 | 1978-10-31 | level detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13320378A JPS6025724B2 (en) | 1978-10-31 | 1978-10-31 | level detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55149874A true JPS55149874A (en) | 1980-11-21 |
| JPS6025724B2 JPS6025724B2 (en) | 1985-06-20 |
Family
ID=15099132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13320378A Expired JPS6025724B2 (en) | 1978-10-31 | 1978-10-31 | level detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6025724B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5960519U (en) * | 1982-10-14 | 1984-04-20 | 株式会社鶴見製作所 | Float type water level detector |
| JPS5960520U (en) * | 1982-10-14 | 1984-04-20 | 株式会社鶴見製作所 | Float type water level detector |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01102116U (en) * | 1987-12-25 | 1989-07-10 | ||
| JPH0661110U (en) * | 1992-05-19 | 1994-08-30 | 正男 沖本 | A play bag with a watch leather band and Velcro (registered trademark) attached. Removal of buckle leather. |
-
1978
- 1978-10-31 JP JP13320378A patent/JPS6025724B2/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5960519U (en) * | 1982-10-14 | 1984-04-20 | 株式会社鶴見製作所 | Float type water level detector |
| JPS5960520U (en) * | 1982-10-14 | 1984-04-20 | 株式会社鶴見製作所 | Float type water level detector |
| JPH0233144Y2 (en) * | 1982-10-14 | 1990-09-06 | ||
| JPH0233143Y2 (en) * | 1982-10-14 | 1990-09-06 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6025724B2 (en) | 1985-06-20 |
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