FR1446363A - Method and device for triggering and alarm with measuring bridge - Google Patents

Method and device for triggering and alarm with measuring bridge

Info

Publication number
FR1446363A
FR1446363A FR19720A FR19720A FR1446363A FR 1446363 A FR1446363 A FR 1446363A FR 19720 A FR19720 A FR 19720A FR 19720 A FR19720 A FR 19720A FR 1446363 A FR1446363 A FR 1446363A
Authority
FR
France
Prior art keywords
triggering
alarm
measuring bridge
bridge
measuring
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
FR19720A
Other languages
French (fr)
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.)
Charbonnages de France CDF
Original Assignee
Charbonnages de France CDF
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 Charbonnages de France CDF filed Critical Charbonnages de France CDF
Priority to FR19720A priority Critical patent/FR1446363A/en
Priority to DE19661548611 priority patent/DE1548611B2/en
Priority to GB2491666A priority patent/GB1155481A/en
Application granted granted Critical
Publication of FR1446363A publication Critical patent/FR1446363A/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
    • G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
    • G01N27/16—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by burning or catalytic oxidation of surrounding material to be tested, e.g. of gas

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)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Emergency Alarm Devices (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
FR19720A 1965-06-04 1965-06-04 Method and device for triggering and alarm with measuring bridge Expired FR1446363A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR19720A FR1446363A (en) 1965-06-04 1965-06-04 Method and device for triggering and alarm with measuring bridge
DE19661548611 DE1548611B2 (en) 1965-06-04 1966-06-02 METHOD AND DEVICE FOR ACTIVATING A SWITCHING DEVICE BY MEANS OF A DC-SUPPLIED MEASURING BRIDGE
GB2491666A GB1155481A (en) 1965-06-04 1966-06-03 A Supervisory System including a Measuring Bridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR19720A FR1446363A (en) 1965-06-04 1965-06-04 Method and device for triggering and alarm with measuring bridge

Publications (1)

Publication Number Publication Date
FR1446363A true FR1446363A (en) 1966-07-22

Family

ID=8581024

Family Applications (1)

Application Number Title Priority Date Filing Date
FR19720A Expired FR1446363A (en) 1965-06-04 1965-06-04 Method and device for triggering and alarm with measuring bridge

Country Status (3)

Country Link
DE (1) DE1548611B2 (en)
FR (1) FR1446363A (en)
GB (1) GB1155481A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2434389A1 (en) * 1978-08-25 1980-03-21 Charbonnages De France APPARATUS FOR MEASURING A CONSTITUENT OF AN ATMOSPHERE
FR2517062A1 (en) * 1981-11-20 1983-05-27 Charbonnages De France METHOD FOR QUERYING A COMBUSTIBLE GAS CONTENT DETECTOR, DEVICE FOR IMPLEMENTING THE SAME, AND APPLICATION FOR DETECTING METHANE CONTENT

Also Published As

Publication number Publication date
DE1548611A1 (en) 1970-09-24
DE1548611C3 (en) 1973-12-13
DE1548611B2 (en) 1973-05-24
GB1155481A (en) 1969-06-18

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