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FR1227040A - Device for measuring very high voids - Google Patents

Device for measuring very high voids

Info

Publication number
FR1227040A
FR1227040A FR797277A FR797277A FR1227040A FR 1227040 A FR1227040 A FR 1227040A FR 797277 A FR797277 A FR 797277A FR 797277 A FR797277 A FR 797277A FR 1227040 A FR1227040 A FR 1227040A
Authority
FR
France
Prior art keywords
measuring
high voids
voids
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
FR797277A
Other languages
French (fr)
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.)
National Research Council of Canada
Original Assignee
National Research Council of Canada
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 National Research Council of Canada filed Critical National Research Council of Canada
Application granted granted Critical
Publication of FR1227040A publication Critical patent/FR1227040A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J41/00—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas; Discharge tubes for evacuation by diffusion of ions
    • H01J41/02—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas
    • H01J41/06—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas with ionisation by means of cold cathodes
FR797277A 1958-06-11 1959-06-11 Device for measuring very high voids Expired FR1227040A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74136758A 1958-06-11 1958-06-11

Publications (1)

Publication Number Publication Date
FR1227040A true FR1227040A (en) 1960-08-18

Family

ID=24980434

Family Applications (1)

Application Number Title Priority Date Filing Date
FR797277A Expired FR1227040A (en) 1958-06-11 1959-06-11 Device for measuring very high voids

Country Status (4)

Country Link
CH (1) CH375800A (en)
DE (1) DE1159667B (en)
FR (1) FR1227040A (en)
GB (1) GB890920A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1246277B (en) * 1960-08-29 1967-08-03 Nat Res Council Magnetic field tube for vacuum measurement with cylindrical anode
DE1261339B (en) * 1961-05-22 1968-02-15 Varian Associates Ionization manometer with cold cathodes and a jacket-shaped anode axially penetrated by a magnetic field
DE1279381B (en) * 1960-08-29 1968-10-03 Nat Res Council Ottawa Magnetic field tubes for measuring low pressures

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4030996A (en) 1971-09-07 1977-06-21 Telic Corporation Electrode type glow discharge method and apparatus
GB8708354D0 (en) * 1987-04-08 1987-05-13 Vacuum Interrupters Ltd Pressure measuring method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE814628C (en) * 1949-03-29 1951-09-24 Philips Nv Method and device for finding leaks in vacuum vessels
DE861329C (en) * 1951-04-10 1952-12-29 Telefunken Gmbh Ionization manometer
NL92807C (en) * 1953-06-15
NL189032B (en) * 1954-07-07 Hougen Everett D DRILL UNIT EQUIPPED WITH AN ELECTROMAGNETIC FOOT.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1246277B (en) * 1960-08-29 1967-08-03 Nat Res Council Magnetic field tube for vacuum measurement with cylindrical anode
DE1279381B (en) * 1960-08-29 1968-10-03 Nat Res Council Ottawa Magnetic field tubes for measuring low pressures
DE1261339B (en) * 1961-05-22 1968-02-15 Varian Associates Ionization manometer with cold cathodes and a jacket-shaped anode axially penetrated by a magnetic field

Also Published As

Publication number Publication date
GB890920A (en) 1962-03-07
CH375800A (en) 1964-03-15
DE1159667B (en) 1963-12-19

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