GB1159494A - Ionisation Gauges - Google Patents

Ionisation Gauges

Info

Publication number
GB1159494A
GB1159494A GB55551/66A GB5555166A GB1159494A GB 1159494 A GB1159494 A GB 1159494A GB 55551/66 A GB55551/66 A GB 55551/66A GB 5555166 A GB5555166 A GB 5555166A GB 1159494 A GB1159494 A GB 1159494A
Authority
GB
United Kingdom
Prior art keywords
anodes
torr
tensioned
filament
dec
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
GB55551/66A
Inventor
John Doble Buckingham
Thomas Chapman
John Stuart Cleaver
Peter Neville Thorne
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.)
Edwards High Vacuum International Ltd
Original Assignee
Edwards High Vacuum International 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 Edwards High Vacuum International Ltd filed Critical Edwards High Vacuum International Ltd
Priority to GB55551/66A priority Critical patent/GB1159494A/en
Priority to DE19671648463 priority patent/DE1648463B1/en
Priority to US689436A priority patent/US3496399A/en
Priority to FR131945A priority patent/FR1547114A/en
Publication of GB1159494A publication Critical patent/GB1159494A/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
    • H01J41/12—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps
    • H01J41/14—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of thermionic cathodes
    • 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)

Abstract

1,159,494. lonization monometers. EDWARDS HIGH VACUUM INTERNATIONAL Ltd. 11 Dec., 1967 [12 Dec., 1966], No. 55551/66. Heading H1D. An ionization gauge having a filamentary cathode 1 (shown in end view) includes a pair of parallel electron collector anodes 3 and a pair of parallel ion collector electrodes 2, the said two pairs of electrodes being disposed at rightangles to each other to define a box-like region through which the filamentary cathode passes. The filament 1 of platinum 10% rhodium alloy coated with yttrium oxide is tensioned by a wire spring at each end. The anodes 3 are mounted at the edges of an aperture in a plate 4, and the ion collectors 2 are connected together by a strap 5. In an alternative embodiment (Fig. 3, not shown), the filament 1 is tensioned by an S-shaped spring at one end, the anodes 3 are formed integrally with the plate 4, and the ion collectors 2 are flat plates. The construction is stated to extend the linear measuring range from 10<SP>-6</SP> torr to pressures as high as 1 torr.
GB55551/66A 1966-12-12 1966-12-12 Ionisation Gauges Expired GB1159494A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB55551/66A GB1159494A (en) 1966-12-12 1966-12-12 Ionisation Gauges
DE19671648463 DE1648463B1 (en) 1966-12-12 1967-12-09 Vacuum gauge
US689436A US3496399A (en) 1966-12-12 1967-12-11 Ion gauge with collector plates anf anodes perpendicular to each other
FR131945A FR1547114A (en) 1966-12-12 1967-12-12 Vacuum electric discharge device and in particular ionization indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB55551/66A GB1159494A (en) 1966-12-12 1966-12-12 Ionisation Gauges

Publications (1)

Publication Number Publication Date
GB1159494A true GB1159494A (en) 1969-07-23

Family

ID=10474249

Family Applications (1)

Application Number Title Priority Date Filing Date
GB55551/66A Expired GB1159494A (en) 1966-12-12 1966-12-12 Ionisation Gauges

Country Status (3)

Country Link
US (1) US3496399A (en)
DE (1) DE1648463B1 (en)
GB (1) GB1159494A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891882A (en) * 1974-01-03 1975-06-24 Anthony J Barraco Ionization gauge
US4063156A (en) * 1976-02-27 1977-12-13 Varian Associates, Inc. Assymetric cylinder electron capture detector
CN101266180A (en) * 2007-03-16 2008-09-17 清华大学 Ionization gage
CN105070628B (en) * 2015-07-13 2017-03-08 兰州空间技术物理研究所 A kind of symmetrical expression carbon nanotube cathod ionization gauge

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2836790A (en) * 1953-05-25 1958-05-27 Westinghouse Electric Corp Ionization tube
US2820946A (en) * 1954-02-01 1958-01-21 Cons Electrodynamics Corp Apparatus for leak detection and pressure measurement
DE1156581B (en) * 1961-04-17 1963-10-31 Philips Nv Ionization manometer
US3254256A (en) * 1962-08-10 1966-05-31 Westinghouse Electric Corp Ionization vacuum gauge having an emissive electrode support means
DE1498533A1 (en) * 1963-12-03 1969-01-30 Varian Mat Gmbh Method for determining the specific surface of irregularly shaped substances by measuring the adsorption of noble gases or inert gases on the sample to be examined
US3394286A (en) * 1965-05-27 1968-07-23 Nat Res Corp Ultrahigh vacuum measuring ionization gauge

Also Published As

Publication number Publication date
DE1648463B1 (en) 1971-03-04
US3496399A (en) 1970-02-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees