公开(公告)号：US3070719A

公开(公告)日：1962-12-25

申请号：US6205560

申请日：1960-10-11

Applicant: VARIAN ASSOCIATES

Inventor： JEPSEN ROBERT L

IPC: H01J17/06 ,  H01J41/06 ,  H01J41/20

CPC classification number: H01J41/20 ,  H01J17/066 ,  H01J41/06 ,  H01J2893/0066

公开(公告)号：US3042833A

公开(公告)日：1962-07-03

申请号：US86222759

申请日：1959-12-28

Applicant: ICI LTD

Inventor： VINCENT WILLIS

IPC: G01L21/00 ,  G01N27/70 ,  H01J41/06

CPC classification number: H01J41/06 ,  G01L21/00 ,  G01N27/70

公开(公告)号：US2993638A

公开(公告)日：1961-07-25

申请号：US67381657

申请日：1957-07-24

Applicant: VARIAN ASSOCIATES

Inventor： HALL LEWIS D ,  HELMER JOHN C ,  JEPSEN ROBERT L

IPC: H01J41/06 ,  H01J41/20

CPC classification number: H01J41/20 ,  H01J41/06

公开(公告)号：US2882429A

公开(公告)日：1959-04-14

申请号：US65820657

申请日：1957-05-09

Applicant: CONS ELECTRODYNAMICS CORP

Inventor： GAUGER ROY C

IPC: H01J41/06

CPC classification number: H01J41/06

公开(公告)号：USRE24428E

公开(公告)日：1958-02-11

申请号：US24428D

IPC: H01J41/06

CPC classification number: H01J41/06

公开(公告)号：US2758232A

公开(公告)日：1956-08-07

申请号：US24225951

申请日：1951-08-17

Applicant: CONS ELECTRODYNAMICS CORP

Inventor： FOX FREDERICK L

IPC: H01J41/06

CPC classification number: H01J41/06

公开(公告)号：US2643342A

公开(公告)日：1953-06-23

申请号：US72271847

申请日：1947-01-17

Applicant: ATOMIC ENERGY COMMISSION

Inventor： SIMPSON KENNETH M

IPC: H01J41/06

CPC classification number: H01J41/06

公开(公告)号：US2577066A

公开(公告)日：1951-12-04

申请号：US74695447

申请日：1947-05-09

Applicant: ARNOLD WILLIAM A

Inventor： ARNOLD WILLIAM A

IPC: G01L21/00 ,  H01J41/06

CPC classification number: H01J41/06 ,  G01L21/00

公开(公告)号：US2197079A

公开(公告)日：1940-04-16

申请号：US10691536

申请日：1936-10-21

Applicant: PHILIPS NV

Inventor： MICHEL PENNING FRANS

IPC: G01L21/00 ,  H01J41/06

CPC classification number: H01J41/06 ,  G01L21/00

公开(公告)号：US11164731B2

公开(公告)日：2021-11-02

申请号：US15762927

申请日：2015-09-23

Applicant: INFICON AG

Inventor： Martin Wüest

IPC: G01L21/30 ,  G01L21/34 ,  G01N27/60 ,  G01N27/62 ,  G01N27/66 ,  G01N27/68 ,  G01N27/70 ,  H01J41/06

Abstract: The invention relates to an ionization vacuum measuring cell (10) comprising an evacuable housing (12) with a measurement connection for a vacuum to be measured at an end portion; a measurement chamber (14) in the housing (12), said measurement chamber being fluidically connected to the measurement connection, wherein the measurement chamber (14) is designed as a replaceable component; and a first and a second electrode (16, 18) in the measurement chamber (14), said electrodes being substantially coaxial to an axis and being arranged at a distance from each other. The measuring cell further comprises an electrically insulating and vacuum-tight feedthrough (20) for an electric supply to the second electrode (18) and a magnetization assembly which is designed to generate a magnetic field in the ionization chamber. According to the invention, the measurement chamber (14), in particular at least one of the electrodes (16, 18), comprises a magnetic material.