GB2105047B - Pirani gauges - Google Patents

Pirani gauges

Info

Publication number
GB2105047B
GB2105047B GB08224544A GB8224544A GB2105047B GB 2105047 B GB2105047 B GB 2105047B GB 08224544 A GB08224544 A GB 08224544A GB 8224544 A GB8224544 A GB 8224544A GB 2105047 B GB2105047 B GB 2105047B
Authority
GB
United Kingdom
Prior art keywords
pirani gauges
pirani
gauges
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
GB08224544A
Other versions
GB2105047A (en
Inventor
Alan Edward Holme
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.)
BOC Group Ltd
BOC Ltd Great Britain
Original Assignee
BOC Ltd Great Britain
British Oxigen Ltd
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 BOC Ltd Great Britain, British Oxigen Ltd filed Critical BOC Ltd Great Britain
Priority to GB08224544A priority Critical patent/GB2105047B/en
Publication of GB2105047A publication Critical patent/GB2105047A/en
Application granted granted Critical
Publication of GB2105047B publication Critical patent/GB2105047B/en
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
GB08224544A 1981-08-28 1982-08-26 Pirani gauges Expired GB2105047B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08224544A GB2105047B (en) 1981-08-28 1982-08-26 Pirani gauges

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8126395 1981-08-28
GB08224544A GB2105047B (en) 1981-08-28 1982-08-26 Pirani gauges

Publications (2)

Publication Number Publication Date
GB2105047A GB2105047A (en) 1983-03-16
GB2105047B true GB2105047B (en) 1986-04-03

Family

ID=26280604

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08224544A Expired GB2105047B (en) 1981-08-28 1982-08-26 Pirani gauges

Country Status (1)

Country Link
GB (1) GB2105047B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH684805A5 (en) * 1992-07-20 1994-12-30 Balzers Hochvakuum A process for the conversion of a measured signal converter to its execution and measurement arrangement.
DE19617238A1 (en) * 1996-04-30 1997-11-06 Leybold Vakuum Gmbh Circuit for temperature compensation of a thermal conduction vacuum meter
US6938493B2 (en) 1997-07-21 2005-09-06 Helix Technology Corporation Apparatus and methods for heat loss pressure measurement
US6023979A (en) * 1997-07-21 2000-02-15 Helix Technology Apparatus and methods for heat loss pressure measurement
US6658941B1 (en) 1997-07-21 2003-12-09 Helix Technology Corporation Apparatus and methods for heat loss pressure measurement
CH692762A5 (en) * 1997-09-22 2002-10-15 Unaxis Balzers Ag A method for measuring the gas pressure in a vessel and means for carrying out the method.
GB2375825B (en) * 2000-05-31 2003-05-14 Helix Tech Corp Apparatus and methods for heat loss pressure measurement
US9927317B2 (en) 2015-07-09 2018-03-27 Mks Instruments, Inc. Ionization pressure gauge with bias voltage and emission current control and measurement

Also Published As

Publication number Publication date
GB2105047A (en) 1983-03-16

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20020825