GB2210454B - Sensor - Google Patents
SensorInfo
- Publication number
- GB2210454B GB2210454B GB8821992A GB8821992A GB2210454B GB 2210454 B GB2210454 B GB 2210454B GB 8821992 A GB8821992 A GB 8821992A GB 8821992 A GB8821992 A GB 8821992A GB 2210454 B GB2210454 B GB 2210454B
- Authority
- GB
- United Kingdom
- Prior art keywords
- sensor
- 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.)
- Expired - Lifetime
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
- G01F23/68—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using electrically actuated indicating means
- G01F23/70—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using electrically actuated indicating means for sensing changes in level only at discrete points
- G01F23/706—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using electrically actuated indicating means for sensing changes in level only at discrete points using opto-electrically actuated indicating means
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB878722693A GB8722693D0 (en) | 1987-09-26 | 1987-09-26 | Sensor |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8821992D0 GB8821992D0 (en) | 1988-10-19 |
GB2210454A GB2210454A (en) | 1989-06-07 |
GB2210454B true GB2210454B (en) | 1992-01-02 |
Family
ID=10624443
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB878722693A Pending GB8722693D0 (en) | 1987-09-26 | 1987-09-26 | Sensor |
GB8821992A Expired - Lifetime GB2210454B (en) | 1987-09-26 | 1988-09-19 | Sensor |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB878722693A Pending GB8722693D0 (en) | 1987-09-26 | 1987-09-26 | Sensor |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB8722693D0 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3388110B2 (en) * | 1995-10-26 | 2003-03-17 | ノーリツ鋼機株式会社 | Float sensor system and replenishing device, and development processing device equipped with the system and replenishing device |
CN103017869B (en) * | 2012-11-28 | 2015-07-29 | 华南农业大学 | A kind of water stage measurement system and method based on Digital Image Processing |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0040648A1 (en) * | 1980-05-22 | 1981-12-02 | ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI (ACEC) Société Anonyme | Method and apparatus for detecting misalignment of mechanical shafts |
GB2087070A (en) * | 1980-11-05 | 1982-05-19 | Standgrove Ltd | Safety device |
-
1987
- 1987-09-26 GB GB878722693A patent/GB8722693D0/en active Pending
-
1988
- 1988-09-19 GB GB8821992A patent/GB2210454B/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0040648A1 (en) * | 1980-05-22 | 1981-12-02 | ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI (ACEC) Société Anonyme | Method and apparatus for detecting misalignment of mechanical shafts |
GB2087070A (en) * | 1980-11-05 | 1982-05-19 | Standgrove Ltd | Safety device |
Also Published As
Publication number | Publication date |
---|---|
GB8821992D0 (en) | 1988-10-19 |
GB8722693D0 (en) | 1987-11-04 |
GB2210454A (en) | 1989-06-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19950919 |