GB1395242A - Vacuum gauges - Google Patents

Vacuum gauges

Info

Publication number
GB1395242A
GB1395242A GB4632272A GB4632272A GB1395242A GB 1395242 A GB1395242 A GB 1395242A GB 4632272 A GB4632272 A GB 4632272A GB 4632272 A GB4632272 A GB 4632272A GB 1395242 A GB1395242 A GB 1395242A
Authority
GB
United Kingdom
Prior art keywords
wire
bridge
oct
circuitry
interior
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
GB4632272A
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.)
Interatom Internationale Atomreaktorbau GmbH
Original Assignee
Interatom Internationale Atomreaktorbau GmbH
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 Interatom Internationale Atomreaktorbau GmbH filed Critical Interatom Internationale Atomreaktorbau GmbH
Publication of GB1395242A publication Critical patent/GB1395242A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00Details 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
    • G01L19/14Housings
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L21/00Vacuum gauges
    • G01L21/10Vacuum gauges by measuring variations in the heat conductivity of the medium, the pressure of which is to be measured
    • G01L21/12Vacuum 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
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/14Investigating 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
    • G01N27/18Investigating 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)

Abstract

1395242 Measuring pressure electrically INTERATOM INTERNATIONALE ATOMREAKTORBAU GmbH 6 Oct 1972 [8 Oct 1971 14 Oct 1971 15 Nov 1971] 46322/72 Heading GIN A vacuum gauge consists of a tubular member 3 sealed at one end 4 and having means 17 for connecting the interior of the member 3 with the interior of a vessel whose internal pressure is to be measured, an electrically resistive member 7 suspended in the member 3, and a housing 1 secured to the member 3 and containing electrical circuitry 2 for monitoring the resistance of member 7, the circuitry including a bridge circuit having the resistive member 7 connected in one arm thereof. As shown, the circuitry is mounted on a circuit board, Figs. 3, 4 and 5 (not shown), the bridge being a self-balancing bridge. A reference temperature dependent resistor, mounted in another arm of the bridge, may be provided in the form of a coil surrounding the member 3, Fig. 6 (not shown). As shown in Fig. 1, the member 7 is in the form of a coil tensioned by a wire 6, the member 7 and wire 6 being connected to the electrical circuitry via wire 10, 11 mounted in the seal 4. As shown in Fig. 7, the member 7 is in the form of a wire wound in tension around two members 18 of angle or star-shaped cross-section. One end of wire 7, which may be of nickel or ansterite, is connected to wire 6 while the other end is connected to wire 10.
GB4632272A 1971-10-08 1972-10-06 Vacuum gauges Expired GB1395242A (en)

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
GB1395242A true GB1395242A (en) 1975-05-21

Family

ID=27207320

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4632272A Expired GB1395242A (en) 1971-10-08 1972-10-06 Vacuum gauges

Country Status (4)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106153246A (en) * 2015-05-15 2016-11-23 株式会社爱发科 Pirani ga(u)ge
CN108507716A (en) * 2018-04-16 2018-09-07 成都科瑞尔低温设备有限公司 A kind of intelligent online detection vacuum coupling
WO2022129872A1 (en) * 2020-12-16 2022-06-23 Edwards Limited Thermal conductivity vacuum gauge assembly

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3130817A1 (en) * 1981-08-04 1983-02-24 Leybold-Heraeus GmbH, 5000 Köln HEATING PIPE VACUUM METER
DE8407656U1 (en) * 1984-03-09 1985-03-14 Siemens AG, 1000 Berlin und 8000 München PRESSURE OR PRESSURE DIFFERENTIAL MEASURING DEVICE
FR2611907B1 (en) * 1987-03-05 1989-06-16 Tolectromed Sarl MEDICAL FLUID IDENTIFIER

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106153246A (en) * 2015-05-15 2016-11-23 株式会社爱发科 Pirani ga(u)ge
CN106153246B (en) * 2015-05-15 2019-08-30 株式会社爱发科 Pirani ga(u)ge
CN108507716A (en) * 2018-04-16 2018-09-07 成都科瑞尔低温设备有限公司 A kind of intelligent online detection vacuum coupling
CN108507716B (en) * 2018-04-16 2024-05-14 成都科瑞尔低温设备有限公司 Intelligent on-line detection vacuum connector
WO2022129872A1 (en) * 2020-12-16 2022-06-23 Edwards Limited Thermal conductivity vacuum gauge assembly

Also Published As

Publication number Publication date
FR2166914A5 (en) 1973-08-17
JPS4862483A (en) 1973-08-31
NL7212942A (en) 1973-04-10

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee