GB2210454B - Sensor - Google Patents

Sensor

Info

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
Application number
GB8821992A
Other versions
GB8821992D0 (en
GB2210454A (en
Inventor
Alexander Taylor
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB8821992D0 publication Critical patent/GB8821992D0/en
Publication of GB2210454A publication Critical patent/GB2210454A/en
Application granted granted Critical
Publication of GB2210454B publication Critical patent/GB2210454B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)
GB8821992A 1987-09-26 1988-09-19 Sensor Expired - Lifetime GB2210454B (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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