DE1498580A1 - Vorrichtung zur Feststellung von anomalen Umgebungsbedingungen in einer Atmosphaere - Google Patents

Vorrichtung zur Feststellung von anomalen Umgebungsbedingungen in einer Atmosphaere

Info

Publication number
DE1498580A1
DE1498580A1 DE19631498580 DE1498580A DE1498580A1 DE 1498580 A1 DE1498580 A1 DE 1498580A1 DE 19631498580 DE19631498580 DE 19631498580 DE 1498580 A DE1498580 A DE 1498580A DE 1498580 A1 DE1498580 A1 DE 1498580A1
Authority
DE
Germany
Prior art keywords
impedance
electrodes
electrode
output
atmosphere
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
DE19631498580
Other languages
German (de)
English (en)
Inventor
Blevins Lewis G
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.)
B R K ELECTRONICS Inc
Original Assignee
B R K ELECTRONICS Inc
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 B R K ELECTRONICS Inc filed Critical B R K ELECTRONICS Inc
Publication of DE1498580A1 publication Critical patent/DE1498580A1/de
Pending 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
    • G01N27/048—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance for determining moisture content of the material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
    • G01N33/0063—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display using a threshold to release an alarm or displaying means
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/08—Actuation involving the use of explosive means
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
    • G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
    • G08B17/113—Constructional details

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Emergency Management (AREA)
  • Business, Economics & Management (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Immunology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
DE19631498580 1962-06-22 1963-06-21 Vorrichtung zur Feststellung von anomalen Umgebungsbedingungen in einer Atmosphaere Pending DE1498580A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20454562A 1962-06-22 1962-06-22

Publications (1)

Publication Number Publication Date
DE1498580A1 true DE1498580A1 (de) 1970-06-18

Family

ID=22758360

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19631498580 Pending DE1498580A1 (de) 1962-06-22 1963-06-21 Vorrichtung zur Feststellung von anomalen Umgebungsbedingungen in einer Atmosphaere

Country Status (4)

Country Link
JP (1) JPS5037999B1 (enExample)
CH (1) CH437056A (enExample)
DE (1) DE1498580A1 (enExample)
GB (1) GB1043727A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0016351B1 (de) * 1979-03-16 1983-05-04 Cerberus Ag Gasmelder zum Einsatz in explosionsgefährdeter Umgebung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52170642U (enExample) * 1976-06-19 1977-12-24

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0016351B1 (de) * 1979-03-16 1983-05-04 Cerberus Ag Gasmelder zum Einsatz in explosionsgefährdeter Umgebung

Also Published As

Publication number Publication date
CH437056A (de) 1967-05-31
JPS5037999B1 (enExample) 1975-12-06
GB1043727A (en) 1966-09-28

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