FR1352857A - Method and device for triggering or alarm with measuring bridge - Google Patents

Method and device for triggering or alarm with measuring bridge

Info

Publication number
FR1352857A
FR1352857A FR915407A FR915407A FR1352857A FR 1352857 A FR1352857 A FR 1352857A FR 915407 A FR915407 A FR 915407A FR 915407 A FR915407 A FR 915407A FR 1352857 A FR1352857 A FR 1352857A
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
FR915407A
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 FR915407A priority Critical patent/FR1352857A/en
Priority to GB4468763A priority patent/GB1007508A/en
Application granted granted Critical
Publication of FR1352857A publication Critical patent/FR1352857A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B23/00—Alarms responsive to unspecified undesired or abnormal conditions
    • 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

  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Electrochemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Alarm Devices (AREA)
FR915407A 1962-11-14 1962-11-14 Method and device for triggering or alarm with measuring bridge Expired FR1352857A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR915407A FR1352857A (en) 1962-11-14 1962-11-14 Method and device for triggering or alarm with measuring bridge
GB4468763A GB1007508A (en) 1962-11-14 1963-11-12 Measuring bridge apparatus for tripping or alarm purposes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR915407A FR1352857A (en) 1962-11-14 1962-11-14 Method and device for triggering or alarm with measuring bridge

Publications (1)

Publication Number Publication Date
FR1352857A true FR1352857A (en) 1964-02-21

Family

ID=8790788

Family Applications (1)

Application Number Title Priority Date Filing Date
FR915407A Expired FR1352857A (en) 1962-11-14 1962-11-14 Method and device for triggering or alarm with measuring bridge

Country Status (2)

Country Link
FR (1) FR1352857A (en)
GB (1) GB1007508A (en)

Also Published As

Publication number Publication date
GB1007508A (en) 1965-10-13

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