GB2248929B - Sensor - Google Patents

Sensor

Info

Publication number
GB2248929B
GB2248929B GB9118549A GB9118549A GB2248929B GB 2248929 B GB2248929 B GB 2248929B GB 9118549 A GB9118549 A GB 9118549A GB 9118549 A GB9118549 A GB 9118549A GB 2248929 B GB2248929 B GB 2248929B
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 - Fee Related
Application number
GB9118549A
Other versions
GB2248929A (en
GB9118549D0 (en
Inventor
Susumu Sato
Yoshihiro Togashi
Norio Ito
Koichi Ishii
Shinji Yasuda
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of GB9118549D0 publication Critical patent/GB9118549D0/en
Publication of GB2248929A publication Critical patent/GB2248929A/en
Application granted granted Critical
Publication of GB2248929B publication Critical patent/GB2248929B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H02B13/055—Features relating to the gas
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • G01N21/783—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour for analysing gases
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
    • H01H33/56—Gas reservoirs
    • H01H2033/567—Detection of decomposition products of the gas

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Power Engineering (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB9118549A 1990-08-29 1991-08-29 Sensor Expired - Fee Related GB2248929B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22761190A JPH04109151A (en) 1990-08-29 1990-08-29 Sensor

Publications (3)

Publication Number Publication Date
GB9118549D0 GB9118549D0 (en) 1991-10-16
GB2248929A GB2248929A (en) 1992-04-22
GB2248929B true GB2248929B (en) 1994-10-05

Family

ID=16863652

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9118549A Expired - Fee Related GB2248929B (en) 1990-08-29 1991-08-29 Sensor

Country Status (3)

Country Link
JP (1) JPH04109151A (en)
GB (1) GB2248929B (en)
HK (1) HK39895A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113670988B (en) * 2021-08-11 2024-09-03 山东智微检测科技有限公司 Dual-mode gas sensing device with color and conductivity and preparation and use methods thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3998591A (en) * 1975-09-26 1976-12-21 Leeds & Northrup Company Spectrochemical analyzer using surface-bound color reagents
US4200110A (en) * 1977-11-28 1980-04-29 United States Of America Fiber optic pH probe
GB2054844A (en) * 1979-07-10 1981-02-18 Hellige Gmbh Transcutaneous photometric measurement of blood component
WO1986005589A1 (en) * 1985-03-20 1986-09-25 Monash University Fibre optic chemical sensor
EP0434893A2 (en) * 1989-11-24 1991-07-03 Mitsubishi Denki Kabushiki Kaisha Abnormality detecting device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5724844A (en) * 1980-07-21 1982-02-09 Mitsubishi Electric Corp Detecting device for abnormality of gas
JPS6228418A (en) * 1985-07-23 1987-02-06 Nippon Spindle Mfg Co Ltd Spinning ring
JPS62123401A (en) * 1985-11-22 1987-06-04 Nippon Kogaku Kk <Nikon> Optical thin film for far ultraviolet rays
JPS6415703A (en) * 1987-07-09 1989-01-19 Nikon Corp Optical thin film for infra red ray

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3998591A (en) * 1975-09-26 1976-12-21 Leeds & Northrup Company Spectrochemical analyzer using surface-bound color reagents
US4200110A (en) * 1977-11-28 1980-04-29 United States Of America Fiber optic pH probe
GB2054844A (en) * 1979-07-10 1981-02-18 Hellige Gmbh Transcutaneous photometric measurement of blood component
WO1986005589A1 (en) * 1985-03-20 1986-09-25 Monash University Fibre optic chemical sensor
EP0434893A2 (en) * 1989-11-24 1991-07-03 Mitsubishi Denki Kabushiki Kaisha Abnormality detecting device

Also Published As

Publication number Publication date
HK39895A (en) 1995-03-31
JPH04109151A (en) 1992-04-10
GB2248929A (en) 1992-04-22
GB9118549D0 (en) 1991-10-16

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19950810

PCNP Patent ceased through non-payment of renewal fee

Effective date: 19990829