FR1601211A - - Google Patents

Info

Publication number
FR1601211A
FR1601211A FR182836A FR1601211DA FR1601211A FR 1601211 A FR1601211 A FR 1601211A FR 182836 A FR182836 A FR 182836A FR 1601211D A FR1601211D A FR 1601211DA FR 1601211 A FR1601211 A FR 1601211A
Authority
FR
France
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
FR182836A
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 filed Critical
Application granted granted Critical
Publication of FR1601211A publication Critical patent/FR1601211A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L21/00—Vacuum gauges
    • G01L21/10—Vacuum gauges by measuring variations in the heat conductivity of the medium, the pressure of which is to be measured
    • G01L21/12—Vacuum gauges by measuring variations in the heat conductivity of the medium, the pressure of which is to be measured measuring changes in electric resistance of measuring members, e.g. of filaments; Vacuum gauges of the Pirani type
    • 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
    • G01N27/002—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the work function voltage
    • 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
    • G01N27/002—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the work function voltage
    • G01N27/005—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the work function voltage by determining the work function in vacuum

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
  • Measuring Fluid Pressure (AREA)
FR182836A 1968-12-31 1968-12-31 Expired FR1601211A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR182836 1968-12-31

Publications (1)

Publication Number Publication Date
FR1601211A true FR1601211A (fr) 1970-08-10

Family

ID=8659791

Family Applications (1)

Application Number Title Priority Date Filing Date
FR182836A Expired FR1601211A (fr) 1968-12-31 1968-12-31

Country Status (3)

Country Link
US (1) US3676771A (fr)
DE (1) DE1965462A1 (fr)
FR (1) FR1601211A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6131113B2 (ja) * 2013-06-13 2017-05-17 キヤノンアネルバ株式会社 冷陰極電離真空計及び内壁保護部材
DE102013014144B4 (de) * 2013-08-23 2021-01-21 Thermo Electron Led Gmbh Wärmeleitfähigkeitsdetektor mit geschlossener Referenzkavität

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3449660A (en) * 1966-08-10 1969-06-10 Wisconsin Alumni Res Found Orbitron electronic vacuum gauge having second anode for collecting scattered electrons

Also Published As

Publication number Publication date
DE1965462A1 (de) 1970-07-16
US3676771A (en) 1972-07-11

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Legal Events

Date Code Title Description
ST Notification of lapse