NL7212942A - - Google Patents

Info

Publication number
NL7212942A
NL7212942A NL7212942A NL7212942A NL7212942A NL 7212942 A NL7212942 A NL 7212942A NL 7212942 A NL7212942 A NL 7212942A NL 7212942 A NL7212942 A NL 7212942A NL 7212942 A NL7212942 A NL 7212942A
Authority
NL
Netherlands
Application number
NL7212942A
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
Publication of NL7212942A publication Critical patent/NL7212942A/xx

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/14—Housings
    • 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
    • G01N27/02—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
    • G01N27/18—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 changes in the thermal conductivity of a surrounding material to be tested

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measuring Fluid Pressure (AREA)
NL7212942A 1971-10-08 1972-09-25 NL7212942A (enrdf_load_stackoverflow)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE7138210 1971-10-08
DE7138878 1971-10-14
DE7142951 1971-11-15

Publications (1)

Publication Number Publication Date
NL7212942A true NL7212942A (enrdf_load_stackoverflow) 1973-04-10

Family

ID=27207320

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7212942A NL7212942A (enrdf_load_stackoverflow) 1971-10-08 1972-09-25

Country Status (4)

Country Link
JP (1) JPS4862483A (enrdf_load_stackoverflow)
FR (1) FR2166914A5 (enrdf_load_stackoverflow)
GB (1) GB1395242A (enrdf_load_stackoverflow)
NL (1) NL7212942A (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3130817A1 (de) * 1981-08-04 1983-02-24 Leybold-Heraeus GmbH, 5000 Köln Waermeleitungsvakuummeter
DE8407656U1 (de) * 1984-03-09 1985-03-14 Siemens AG, 1000 Berlin und 8000 München Druck- oder druckdifferenzmessgeraet
FR2611907B1 (fr) * 1987-03-05 1989-06-16 Tolectromed Sarl Identificateur de fluides medicaux
CN106153246B (zh) * 2015-05-15 2019-08-30 株式会社爱发科 皮拉尼真空计
CN108507716B (zh) * 2018-04-16 2024-05-14 成都科瑞尔低温设备有限公司 一种智能在线检测真空连接器
GB2602040A (en) * 2020-12-16 2022-06-22 Edwards Ltd Thermal conductivity vacuum gauge assembly

Also Published As

Publication number Publication date
FR2166914A5 (enrdf_load_stackoverflow) 1973-08-17
GB1395242A (en) 1975-05-21
JPS4862483A (enrdf_load_stackoverflow) 1973-08-31

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BV The patent application has lapsed