GB2175399B - Selective chemical detection by energy modulation of sensors - Google Patents

Selective chemical detection by energy modulation of sensors

Info

Publication number
GB2175399B
GB2175399B GB8611272A GB8611272A GB2175399B GB 2175399 B GB2175399 B GB 2175399B GB 8611272 A GB8611272 A GB 8611272A GB 8611272 A GB8611272 A GB 8611272A GB 2175399 B GB2175399 B GB 2175399B
Authority
GB
United Kingdom
Prior art keywords
sensors
chemical detection
energy modulation
selective chemical
selective
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
Application number
GB8611272A
Other versions
GB2175399A (en
GB8611272D0 (en
Inventor
Joseph Robert Stetter
Takaaki Otagawa
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.)
US Department of Energy
Original Assignee
US Department of Energy
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 US Department of Energy filed Critical US Department of Energy
Publication of GB8611272D0 publication Critical patent/GB8611272D0/en
Publication of GB2175399A publication Critical patent/GB2175399A/en
Application granted granted Critical
Publication of GB2175399B publication Critical patent/GB2175399B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
    • G01N27/122—Circuits particularly adapted therefor, e.g. linearising circuits
    • G01N27/123—Circuits particularly adapted therefor, e.g. linearising circuits for controlling the temperature
    • G01N27/124—Circuits particularly adapted therefor, e.g. linearising circuits for controlling the temperature varying the temperature, e.g. in a cyclic manner

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
GB8611272A 1985-05-20 1986-05-08 Selective chemical detection by energy modulation of sensors Expired GB2175399B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73619685A 1985-05-20 1985-05-20

Publications (3)

Publication Number Publication Date
GB8611272D0 GB8611272D0 (en) 1986-06-18
GB2175399A GB2175399A (en) 1986-11-26
GB2175399B true GB2175399B (en) 1989-10-11

Family

ID=24958902

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8611272A Expired GB2175399B (en) 1985-05-20 1986-05-08 Selective chemical detection by energy modulation of sensors

Country Status (7)

Country Link
JP (1) JPH07122635B2 (en)
CA (1) CA1249334A (en)
DE (1) DE3616860A1 (en)
FR (1) FR2582101B1 (en)
GB (1) GB2175399B (en)
IT (1) IT1213096B (en)
NL (1) NL8601272A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3736200A1 (en) * 1987-10-26 1989-05-03 Siemens Ag Method of operating a semiconductor gas sensor working on the calorimeter principle and having a plurality of sensor elements
DE10309206A1 (en) * 2003-02-28 2004-09-09 Abb Research Ltd. Heat conductivity measuring instrument, for use in micro-analysis of gaseous or liquid media, uses active regulation of modulation signal frequency
GB0508657D0 (en) * 2005-04-29 2005-06-08 Tristel Company The Ltd Flow control

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2015154A (en) * 1978-02-24 1979-09-05 Siemens Ag Compensation for interference component in i.r.gas analysis
GB2053460A (en) * 1979-05-21 1981-02-04 Inco Ltd Detecting metal carbonyls by chemiluminescence
GB2057135A (en) * 1979-08-22 1981-03-25 Southwest Res Inst Gyromagnetic detection method and apparatus
GB2123145A (en) * 1982-07-03 1984-01-25 Horiba Ltd Continuous particulate-measuring apparatus using an optoacoustic effect
GB2140567A (en) * 1980-06-02 1984-11-28 Joslin Diabetes Center Inc Glucose sensor
US4486272A (en) * 1982-04-16 1984-12-04 Hitachi, Ltd. Method of electrochemical measurement utilizing photochemical reaction and apparatus therefor

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2053460A (en) * 1935-09-25 1936-09-08 Jesse J Brown Liquid gauge
US2899282A (en) * 1954-11-19 1959-08-11 Means for measuring the contents of a combustible
DE2313413C3 (en) * 1973-03-17 1978-03-02 Westfaelische Berggewerkschaftskasse, 4630 Bochum Method and measuring device for determining the proportion of one or more gas components in a gas mixture, in particular the CO content and / or the CH4 content in underground operations
US3906473A (en) * 1974-03-08 1975-09-16 Ross Inc Will Method and apparatus for operating a gas sensor
US3938956A (en) * 1974-06-28 1976-02-17 The United States Of America As Represented By The National Aeronautics And Space Administration Office Of General Counsel-Code Gp Modulated hydrogen ion flame detector
US4399684A (en) * 1981-11-27 1983-08-23 Sierra Monitor Corporation Gas measurement method
DE3364035D1 (en) * 1982-04-15 1986-07-17 Cerberus Ag Gas and/or vapour alarm device
EP0135135A3 (en) * 1983-08-15 1987-04-15 Honeywell Inc. Method and apparatus for trace gas detection
CH668648A5 (en) * 1984-04-04 1989-01-13 Cerberus Ag METHOD AND DEVICE FOR DETECTING REDUCING GASES IN A GAS MIXTURE.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2015154A (en) * 1978-02-24 1979-09-05 Siemens Ag Compensation for interference component in i.r.gas analysis
GB2053460A (en) * 1979-05-21 1981-02-04 Inco Ltd Detecting metal carbonyls by chemiluminescence
GB2057135A (en) * 1979-08-22 1981-03-25 Southwest Res Inst Gyromagnetic detection method and apparatus
GB2140567A (en) * 1980-06-02 1984-11-28 Joslin Diabetes Center Inc Glucose sensor
US4486272A (en) * 1982-04-16 1984-12-04 Hitachi, Ltd. Method of electrochemical measurement utilizing photochemical reaction and apparatus therefor
GB2123145A (en) * 1982-07-03 1984-01-25 Horiba Ltd Continuous particulate-measuring apparatus using an optoacoustic effect

Also Published As

Publication number Publication date
FR2582101A1 (en) 1986-11-21
GB2175399A (en) 1986-11-26
IT1213096B (en) 1989-12-07
FR2582101B1 (en) 1992-09-18
CA1249334A (en) 1989-01-24
JPS61270660A (en) 1986-11-29
DE3616860A1 (en) 1986-11-20
NL8601272A (en) 1986-12-16
IT8620494A0 (en) 1986-05-20
GB8611272D0 (en) 1986-06-18
JPH07122635B2 (en) 1995-12-25

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970508