DE3778565D1 - Vakuumueberwachungsvorrichtung. - Google Patents

Vakuumueberwachungsvorrichtung.

Info

Publication number
DE3778565D1
DE3778565D1 DE8787301394T DE3778565T DE3778565D1 DE 3778565 D1 DE3778565 D1 DE 3778565D1 DE 8787301394 T DE8787301394 T DE 8787301394T DE 3778565 T DE3778565 T DE 3778565T DE 3778565 D1 DE3778565 D1 DE 3778565D1
Authority
DE
Germany
Prior art keywords
monitoring device
vacuum monitoring
vacuum
monitoring
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 - Lifetime
Application number
DE8787301394T
Other languages
English (en)
Inventor
Robert Bruce Grant
Joseph Paul Robert Jullien
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.)
Fisons Ltd
Original Assignee
VG INSTRUMENTS GROUP Ltd CRAWLEY WEST SUSSEX GB
VG Instruments Group 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 VG INSTRUMENTS GROUP Ltd CRAWLEY WEST SUSSEX GB, VG Instruments Group Ltd filed Critical VG INSTRUMENTS GROUP Ltd CRAWLEY WEST SUSSEX GB
Application granted granted Critical
Publication of DE3778565D1 publication Critical patent/DE3778565D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L21/00—Vacuum gauges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L21/00—Vacuum gauges
    • G01L21/30—Vacuum gauges by making use of ionisation effects
    • G01L21/32—Vacuum gauges by making use of ionisation effects using electric discharge tubes with thermionic cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J49/00—Particle spectrometers or separator tubes
    • H01J49/02—Details

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
DE8787301394T 1986-02-18 1987-02-18 Vakuumueberwachungsvorrichtung. Expired - Lifetime DE3778565D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868603999A GB8603999D0 (en) 1986-02-18 1986-02-18 Vacuum monitoring apparatus

Publications (1)

Publication Number Publication Date
DE3778565D1 true DE3778565D1 (de) 1992-06-04

Family

ID=10593267

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787301394T Expired - Lifetime DE3778565D1 (de) 1986-02-18 1987-02-18 Vakuumueberwachungsvorrichtung.

Country Status (4)

Country Link
US (1) US4755669A (de)
EP (1) EP0233784B1 (de)
DE (1) DE3778565D1 (de)
GB (1) GB8603999D0 (de)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4808820A (en) * 1987-09-23 1989-02-28 Hewlett-Packard Company Electron-emission filament cutoff for gas chromatography + mass spectrometry systems
JP2735222B2 (ja) * 1988-06-01 1998-04-02 株式会社日立製作所 質量分析計
US6318093B2 (en) 1988-09-13 2001-11-20 Helix Technology Corporation Electronically controlled cryopump
US5256874A (en) * 1992-03-25 1993-10-26 California Institute Of Technology Gridded electron reversal ionizer
US6902378B2 (en) 1993-07-16 2005-06-07 Helix Technology Corporation Electronically controlled vacuum pump
US5455239A (en) * 1993-08-05 1995-10-03 Merck & Co. Inc. 3-aryl of heteroaryl-7-heteroaralkylamido cephalosporin compounds, compositions and methods of use
CH688210A5 (de) * 1993-12-15 1997-06-13 Balzers Hochvakuum Druckmessverfahren und Druckmessanordnung zu dessen Ausfuehrung
GB9409953D0 (en) * 1994-05-17 1994-07-06 Fisons Plc Mass spectrometer and electron impact ion source therefor
DE19903010B4 (de) * 1999-01-26 2004-07-08 Plöchinger, Heinz, Dipl.-Ing. Pirani-Druckmeßanordnung und Kombinationssensor mit einer solchen Pirani-Druckmeßanordnung
US6566884B2 (en) * 2001-09-13 2003-05-20 Duniway Stockroom Corporation Ionization vacuum pressure gauge
DE10238961A1 (de) * 2002-08-24 2004-03-04 Pfeiffer Vacuum Gmbh Verfahren zum Betrieb eines Totaldrucktransmitters
US6868720B2 (en) * 2002-10-16 2005-03-22 Alcon, Inc. Testing of pressure sensor in surgical cassette
US6955073B2 (en) * 2002-10-16 2005-10-18 Alcon, Inc. Pressure sensing in surgical console
US6941813B2 (en) * 2003-06-30 2005-09-13 Alcon, Inc. Noninvasive pressure sensing assembly
US7313966B2 (en) * 2004-12-14 2008-01-01 Brooks Automation, Inc. Method and apparatus for storing vacuum gauge calibration parameters and measurement data on a vacuum gauge structure
US7207224B2 (en) * 2005-06-10 2007-04-24 Brooks Automation, Inc. Wide-range combination vacuum gauge
US7418869B2 (en) * 2005-06-10 2008-09-02 Brooks Automation, Inc. Wide-range combination vacuum gauge
US7613586B2 (en) * 2007-01-16 2009-11-03 Honeywell International Inc. Thermal vacuum gauge
JP5103983B2 (ja) * 2007-03-28 2012-12-19 東京エレクトロン株式会社 ガス供給方法、ガス供給装置、半導体製造装置及び記憶媒体
WO2012030595A2 (en) 2010-08-30 2012-03-08 Alcon Research, Ltd. Optical sensing system including electronically switched optical magnification
US10845263B2 (en) * 2018-04-17 2020-11-24 Mks Instruments, Inc. Thermal conductivity gauge
GB201808948D0 (en) * 2018-05-31 2018-07-18 Micromass Ltd Bench-top time of flight mass spectrometer
GB201808936D0 (en) 2018-05-31 2018-07-18 Micromass Ltd Bench-top time of flight mass spectrometer
US11373849B2 (en) 2018-05-31 2022-06-28 Micromass Uk Limited Mass spectrometer having fragmentation region
GB201808949D0 (en) 2018-05-31 2018-07-18 Micromass Ltd Bench-top time of flight mass spectrometer
GB201808890D0 (en) 2018-05-31 2018-07-18 Micromass Ltd Bench-top time of flight mass spectrometer
GB201808894D0 (en) 2018-05-31 2018-07-18 Micromass Ltd Mass spectrometer
GB201808892D0 (en) 2018-05-31 2018-07-18 Micromass Ltd Mass spectrometer
US11367607B2 (en) 2018-05-31 2022-06-21 Micromass Uk Limited Mass spectrometer
GB201808932D0 (en) 2018-05-31 2018-07-18 Micromass Ltd Bench-top time of flight mass spectrometer
GB201808912D0 (en) 2018-05-31 2018-07-18 Micromass Ltd Bench-top time of flight mass spectrometer

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2758233A (en) * 1951-09-12 1956-08-07 Gen Electric Electric discharge device for gas pressure determination
US2800796A (en) * 1952-08-05 1957-07-30 Trans Souics Inc Pressure measuring device
US3267326A (en) * 1963-09-05 1966-08-16 Varian Associates Vacuum gauge
US3319117A (en) * 1964-03-24 1967-05-09 Varian Associates Ionization vacuum gauge for use in the 10-6 to 1 torr range
DE1473370A1 (de) * 1964-09-04 1968-11-07 Bbc Brown Boveri & Cie Verfahren zur Vakuummessung
US3361340A (en) * 1965-10-18 1968-01-02 Cons Vacuum Corp High vacuum pumping system
US3576465A (en) * 1968-04-01 1971-04-27 Norton Co Ionization gauge control with emission responsive control of thermionic filament heating
US3723729A (en) * 1971-02-02 1973-03-27 Hewlett Packard Co Ionization chamber for use with a mass spectrometer
US3761708A (en) * 1971-10-08 1973-09-25 Us Interior Electron suppressor grid for a mass spectrometer
US4035720A (en) * 1975-12-31 1977-07-12 Harvey Philip C Ion gauge system
US4251725A (en) * 1979-08-06 1981-02-17 Honeywell Inc. Programmed sample pyrolysis for mass spectrometer
US4314205A (en) * 1979-11-19 1982-02-02 Paitich Ronald M Method and means for vacuum gauging
GB8305228D0 (en) * 1983-02-25 1983-03-30 Vg Instr Ltd Operating quadrupole mass spectrometers

Also Published As

Publication number Publication date
US4755669A (en) 1988-07-05
EP0233784A2 (de) 1987-08-26
EP0233784B1 (de) 1992-04-29
EP0233784A3 (en) 1989-08-02
GB8603999D0 (en) 1986-03-26

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: FISONS PLC, IPSWICH, SUFFOLK, GB

8328 Change in the person/name/address of the agent

Free format text: WEICKMANN, H., DIPL.-ING. FINCKE, K., DIPL.-PHYS. DR. WEICKMANN, F., DIPL.-ING. HUBER, B., DIPL.-CHEM. LISKA, H., DIPL.-ING. DR.-ING. PRECHTEL, J., DIPL.-PHYS. DR.RER.NAT. BOEHM, B., DIPL.-CHEM.UNIV. DR.RER.NAT., PAT.-ANWAELTE, 8000 MUENCHEN

8339 Ceased/non-payment of the annual fee