GB1446100A - Testing for impurities in penning mixtures - Google Patents

Testing for impurities in penning mixtures

Info

Publication number
GB1446100A
GB1446100A GB5419874A GB5419874A GB1446100A GB 1446100 A GB1446100 A GB 1446100A GB 5419874 A GB5419874 A GB 5419874A GB 5419874 A GB5419874 A GB 5419874A GB 1446100 A GB1446100 A GB 1446100A
Authority
GB
United Kingdom
Prior art keywords
impurities
testing
penning
mixtures
penning mixtures
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
GB5419874A
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1446100A publication Critical patent/GB1446100A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/66—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence
    • G01N21/69—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence specially adapted for fluids, e.g. molten metal
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/38—Cold-cathode tubes
    • H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
    • H01J17/49—Display panels, e.g. with crossed electrodes, e.g. making use of direct current

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Combustion & Propulsion (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB5419874A 1974-01-08 1974-12-16 Testing for impurities in penning mixtures Expired GB1446100A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US431812A US3865489A (en) 1974-01-08 1974-01-08 On-line detection and measurement of contaminating gases during filling of gas display panels

Publications (1)

Publication Number Publication Date
GB1446100A true GB1446100A (en) 1976-08-11

Family

ID=23713528

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5419874A Expired GB1446100A (en) 1974-01-08 1974-12-16 Testing for impurities in penning mixtures

Country Status (5)

Country Link
US (1) US3865489A (en)
JP (1) JPS50107989A (en)
DE (1) DE2459184A1 (en)
FR (1) FR2257087B1 (en)
GB (1) GB1446100A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5528109A (en) * 1995-04-19 1996-06-18 Tektronix, Inc. Addressing structure using ionizable gaseous mixture having decreased decay time
TW494433B (en) * 1995-12-21 2002-07-11 Tektronix Inc Addressing structure using ionizable gaseous mixtures having multiple ionizable components
US6368175B1 (en) † 1998-03-16 2002-04-09 Matsushita Electric Industrial Co., Ltd. Discharge lamp and method of producing the same
JP4679389B2 (en) * 2006-02-20 2011-04-27 株式会社日立ハイテクノロジーズ Detector and analyzer for detecting a sample with low ionization energy

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA568974A (en) * 1959-01-13 The British Oxygen Canada Limited Photoelectric gas impurity detector

Also Published As

Publication number Publication date
FR2257087A1 (en) 1975-08-01
JPS50107989A (en) 1975-08-25
DE2459184A1 (en) 1975-07-10
FR2257087B1 (en) 1976-10-22
US3865489A (en) 1975-02-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee