DE2402493A1 - Gasindikator - Google Patents

Gasindikator

Info

Publication number
DE2402493A1
DE2402493A1 DE2402493A DE2402493A DE2402493A1 DE 2402493 A1 DE2402493 A1 DE 2402493A1 DE 2402493 A DE2402493 A DE 2402493A DE 2402493 A DE2402493 A DE 2402493A DE 2402493 A1 DE2402493 A1 DE 2402493A1
Authority
DE
Germany
Prior art keywords
signal
gas
voltage
flip
gate
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.)
Pending
Application number
DE2402493A
Other languages
German (de)
English (en)
Inventor
Robertus Gerardus Visser
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 DE2402493A1 publication Critical patent/DE2402493A1/de
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/117—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means by using a detection device for specific gases, e.g. combustion products, produced by the fire
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Management (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Business, Economics & Management (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Emergency Alarm Devices (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
DE2402493A 1973-10-10 1974-01-19 Gasindikator Pending DE2402493A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7313897A NL7313897A (nl) 1973-10-10 1973-10-10 Gasindicator.

Publications (1)

Publication Number Publication Date
DE2402493A1 true DE2402493A1 (de) 1975-04-30

Family

ID=19819783

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2402493A Pending DE2402493A1 (de) 1973-10-10 1974-01-19 Gasindikator

Country Status (6)

Country Link
US (1) US3895367A (enrdf_load_stackoverflow)
JP (1) JPS5067197A (enrdf_load_stackoverflow)
BE (1) BE808064A (enrdf_load_stackoverflow)
DE (1) DE2402493A1 (enrdf_load_stackoverflow)
FR (1) FR2247773B1 (enrdf_load_stackoverflow)
NL (1) NL7313897A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2631027A1 (de) * 1975-07-10 1977-01-27 Richard Hunziker Vorrichtung zum nachweis unverbrannter brennstoff-komponenten im abgas einer heizanlage und verfahren zum betrieb der vorrichtung
FR2431124A1 (fr) * 1978-07-11 1980-02-08 Silvy Bruno Appareil de detection d'alcoolemie
EP0197257A1 (en) * 1985-02-13 1986-10-15 PROTECTOR SAL S.a.s. di Giovanni Salutati Apparatus for detecting the presence of gases in a closed environment
DE102014019172A1 (de) 2014-12-17 2016-06-23 Elmos Semiconductor Aktiengesellschaft Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mit einem kompensierenden optischen Messsystem
DE102014019773A1 (de) 2014-12-17 2016-06-23 Elmos Semiconductor Aktiengesellschaft Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mittels des Displays eines Mobiltelefons

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007456A (en) * 1975-12-01 1977-02-08 Craftor Inc. Gas detecting and warning system
US4065759A (en) * 1976-01-07 1977-12-27 Handing Theodore E Smoke detector
DE2709487A1 (de) * 1976-03-17 1977-09-22 Nohmi Bosai Kogyo Co Ltd Brandmelder
US4088986A (en) * 1976-10-01 1978-05-09 Boucher Charles E Smoke, fire and gas alarm with remote sensing, back-up emergency power, and system self monitoring
US4096473A (en) * 1976-12-09 1978-06-20 P.R. Mallory & Co. Inc. High output smoke and heat detector alarm system utilizing a piezoelectric transducer and a voltage doubling means
GB1557921A (en) * 1977-01-10 1979-12-19 British Steel Corp Gas monitors
USRE30620E (en) * 1978-07-03 1981-05-19 P. R. Mallory & Co. Inc. High output smoke and heat detector alarm system utilizing a piezoelectric transducer and a voltage doubling means
US4225860A (en) * 1979-01-15 1980-09-30 Pittway Corporation Sensitivity controlled dual input fire detector
JPS55166163A (en) * 1979-06-13 1980-12-25 Citizen Watch Co Ltd Controller for anesthetic gas
US4335379A (en) * 1979-09-13 1982-06-15 Martin John R Method and system for providing an audible alarm responsive to sensed conditions
CN110164066A (zh) * 2017-12-29 2019-08-23 郑州天舜电子技术有限公司 一种安全警戒指示灯

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3733595A (en) * 1971-02-12 1973-05-15 E Benedict Condition responsive switching circuit
JPS5320668Y2 (enrdf_load_stackoverflow) * 1972-06-07 1978-05-31

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2631027A1 (de) * 1975-07-10 1977-01-27 Richard Hunziker Vorrichtung zum nachweis unverbrannter brennstoff-komponenten im abgas einer heizanlage und verfahren zum betrieb der vorrichtung
FR2431124A1 (fr) * 1978-07-11 1980-02-08 Silvy Bruno Appareil de detection d'alcoolemie
EP0197257A1 (en) * 1985-02-13 1986-10-15 PROTECTOR SAL S.a.s. di Giovanni Salutati Apparatus for detecting the presence of gases in a closed environment
DE102014019172A1 (de) 2014-12-17 2016-06-23 Elmos Semiconductor Aktiengesellschaft Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mit einem kompensierenden optischen Messsystem
DE102014019773A1 (de) 2014-12-17 2016-06-23 Elmos Semiconductor Aktiengesellschaft Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mittels des Displays eines Mobiltelefons

Also Published As

Publication number Publication date
FR2247773A1 (enrdf_load_stackoverflow) 1975-05-09
NL7313897A (nl) 1975-04-14
JPS5067197A (enrdf_load_stackoverflow) 1975-06-05
US3895367A (en) 1975-07-15
FR2247773B1 (enrdf_load_stackoverflow) 1977-09-16
BE808064A (nl) 1974-03-15

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