GB964120A - Improvements in or relating to the ionisation manometers - Google Patents

Improvements in or relating to the ionisation manometers

Info

Publication number
GB964120A
GB964120A GB14390/62A GB1439062A GB964120A GB 964120 A GB964120 A GB 964120A GB 14390/62 A GB14390/62 A GB 14390/62A GB 1439062 A GB1439062 A GB 1439062A GB 964120 A GB964120 A GB 964120A
Authority
GB
United Kingdom
Prior art keywords
diaphragms
anode
diaphragm
ions
april
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
GB14390/62A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB964120A publication Critical patent/GB964120A/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
    • H01J41/04—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas with ionisation by means of thermionic cathodes

Landscapes

  • Measuring Fluid Pressure (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)

Abstract

964,120. Ionization manometers. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 13, 1962 [April 17, 1961], No. 14390/62. Heading HID. In an ionization manometer, the gas is ionized between two apertured diaphragms 4, 5 by a magnetically-concentrated electron beam passing through the diaphragm apertures. The ions are collected by an electrode 11 arranged laterally of the electron beam between the diaphragms 4, 5 and out of direct line of sight of the electron-collecting area of an anode 10 located beyond diaphragm 5. The voltage applied between diaphragm 5 and anode 10 is sufficient to drive ions liberated from the anode towards the cathode 1 under the influence of the magnetic beam-concentrating field 15 so that these ions do not strike the collector electrode 11. As shown, diaphragms 4, 5 form part of a metal box 8 within the open end of which is arranged the ion collector 11 connected to amplifier and measuring instruments 18 and screened by members 13, 14. Dimensions, operating potentials and magnetic field strengths are given, and pressures of 10<SP>-2</SP> to 10<SP>-14</SP> Torr can be measured.
GB14390/62A 1961-04-17 1962-04-13 Improvements in or relating to the ionisation manometers Expired GB964120A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN19897A DE1156581B (en) 1961-04-17 1961-04-17 Ionization manometer

Publications (1)

Publication Number Publication Date
GB964120A true GB964120A (en) 1964-07-15

Family

ID=7341064

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14390/62A Expired GB964120A (en) 1961-04-17 1962-04-13 Improvements in or relating to the ionisation manometers

Country Status (4)

Country Link
US (1) US3193724A (en)
CH (1) CH412395A (en)
DE (1) DE1156581B (en)
GB (1) GB964120A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2660999A1 (en) * 1990-04-11 1991-10-18 Granville Phillips Co IMPROVED IONIZATION MANOMETER FOR VERY LOW PRESSURES.

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1053215A (en) * 1963-04-15
US3387175A (en) * 1965-03-05 1968-06-04 Varian Associates Vacuum gauge having separate electron collecting and electron accelerating electrodes
US3394286A (en) * 1965-05-27 1968-07-23 Nat Res Corp Ultrahigh vacuum measuring ionization gauge
US3320455A (en) * 1966-04-22 1967-05-16 Gen Electric Ionization vacuum gauge having x-ray shielding means
DE1648650A1 (en) * 1966-05-17 1971-07-22 Politechnika Warszawska Ionization vacuum meter for lowest pressures
GB1159494A (en) * 1966-12-12 1969-07-23 Edwards High Vacuum Int Ltd Ionisation Gauges

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE753159C (en) * 1941-10-19 1954-07-19 Siemens & Halske A G Ionization manometer
DE843313C (en) * 1951-02-27 1952-08-14 Telefunken Gmbh Electrical discharge device with a glow cathode, an ionization electrode and an ion collecting electrode for measuring the gas pressure in the discharge space by means of the ion current passing to the ion collecting electrode
US2937295A (en) * 1957-05-07 1960-05-17 Ca Nat Research Council Ionization gauge for the measurement of low pressures
US3051868A (en) * 1960-08-29 1962-08-28 Ca Nat Research Council Ionization vacuum gauges

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2660999A1 (en) * 1990-04-11 1991-10-18 Granville Phillips Co IMPROVED IONIZATION MANOMETER FOR VERY LOW PRESSURES.
GB2244856A (en) * 1990-04-11 1991-12-11 Granville Phillips Company Vacuum gauge
GB2244856B (en) * 1990-04-11 1994-10-12 Granville Phillips Company Improved vacuum gauge

Also Published As

Publication number Publication date
US3193724A (en) 1965-07-06
CH412395A (en) 1966-04-30
DE1156581B (en) 1963-10-31

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