SE8405917L - ADJUSTABLE MAGNET - Google Patents

ADJUSTABLE MAGNET

Info

Publication number
SE8405917L
SE8405917L SE8405917A SE8405917A SE8405917L SE 8405917 L SE8405917 L SE 8405917L SE 8405917 A SE8405917 A SE 8405917A SE 8405917 A SE8405917 A SE 8405917A SE 8405917 L SE8405917 L SE 8405917L
Authority
SE
Sweden
Prior art keywords
space
interaction
interaction space
bearings
evacuated
Prior art date
Application number
SE8405917A
Other languages
Swedish (sv)
Other versions
SE451649B (en
SE8405917D0 (en
Inventor
L P J Mattsson
A Agoston
Original Assignee
Philips Norden Ab
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 Norden Ab filed Critical Philips Norden Ab
Publication of SE8405917D0 publication Critical patent/SE8405917D0/en
Publication of SE8405917L publication Critical patent/SE8405917L/en
Priority to DE8585201833T priority Critical patent/DE3569432D1/en
Priority to EP85201833A priority patent/EP0182428B1/en
Priority to US06/799,420 priority patent/US4705990A/en
Priority to CN85108472.9A priority patent/CN1010905B/en
Publication of SE451649B publication Critical patent/SE451649B/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
    • H01J23/18—Resonators
    • H01J23/20—Cavity resonators; Adjustment or tuning thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/50—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field

Landscapes

  • Rolling Contact Bearings (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

The magnetron comprises coaxial cathode and anode systems defining interaction space which is evacuated during operation. The coaxial cathode and anode systems (13,11,12) also define between them a rotatable located syntonising body (20,24) supported by ball bearings (21,22). This body, with its bearings, is located in an evacuated space (25) communicating with the interaction space (18). A magnet circuit with two pole shoes (16,17) located on opposite sides of the interaction space produces an axial magnetic field through that space (18), and is closed by the ball bearing (21) located nearest to the interaction space. In order to prevent the magnetic interaction forces between the ball bearings having an effect on the produced rotations during continuous operation, partic. if the bearings do not have holder rings, at least the balls in the bearing (21) located in the immediate vicinity of the interaction space (18) are made of non-magnetic hard metal or ceramic material.
SE8405917A 1984-02-01 1984-11-23 Tunable magnetron e.g. for radar application SE451649B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE8585201833T DE3569432D1 (en) 1984-11-23 1985-11-11 A TUNABLE MAGNETRON
EP85201833A EP0182428B1 (en) 1984-11-23 1985-11-11 A tunable magnetron
US06/799,420 US4705990A (en) 1984-11-23 1985-11-19 Tunable magnetron
CN85108472.9A CN1010905B (en) 1984-11-23 1985-11-20 Tunable magnetron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8400506A SE8400506D0 (en) 1984-02-01 1984-02-01 UPPHENGNINGSANORDNING

Publications (3)

Publication Number Publication Date
SE8405917D0 SE8405917D0 (en) 1984-11-23
SE8405917L true SE8405917L (en) 1985-08-02
SE451649B SE451649B (en) 1987-10-19

Family

ID=20354555

Family Applications (2)

Application Number Title Priority Date Filing Date
SE8400506A SE8400506D0 (en) 1984-02-01 1984-02-01 UPPHENGNINGSANORDNING
SE8405917A SE451649B (en) 1984-02-01 1984-11-23 Tunable magnetron e.g. for radar application

Family Applications Before (1)

Application Number Title Priority Date Filing Date
SE8400506A SE8400506D0 (en) 1984-02-01 1984-02-01 UPPHENGNINGSANORDNING

Country Status (1)

Country Link
SE (2) SE8400506D0 (en)

Also Published As

Publication number Publication date
SE451649B (en) 1987-10-19
SE8405917D0 (en) 1984-11-23
SE8400506D0 (en) 1984-02-01

Similar Documents

Publication Publication Date Title
EP0559839A4 (en) High temperature superconducting magnetic bearings
US4898480A (en) Compact ferrofluidic electrically conducting sealed bearing
DE3480245D1 (en) Magnetron-cathodes for the sputtering of ferromagnetic targets
US5321329A (en) Permanent magnet shaft bearing
US4797013A (en) Compact ferrofluidic electrically conducting sealed bearing
US4322624A (en) X-ray tube having a magnetically supported rotary anode
GB8500544D0 (en) Bearing assembly
JPS575871A (en) Cathode part of magnetron type sputtering apparatus
DE3480145D1 (en) Magnetron cathode for the sputtering of ferromagnetic targets
US2704231A (en) Magnetic bearings
JPS5819844A (en) Rotary anode x ray-tube
US2725266A (en) Magnetic suspension
GB1527239A (en) Rotaryanode x-ray tube
EP0249319A3 (en) Low friction ferrofluid bearing arrangement
SE8405917D0 (en) ADJUSTABLE MAGNET
GB1358411A (en) Sputtering
JPH01203716A (en) Magnetic supporter for rotor to stator
GB1493276A (en) Magnetrons
JPS6477764A (en) Hall type ion thruster
JPS5730249A (en) Rotary anode x-ray tube
JPS5797919A (en) Magnetic bearing
GB1406290A (en) Current collector
EP0338326A3 (en) Travelling-wave tube with confined-flow periodic permanent magnet focusing
JPS57192268A (en) Dry etching apparatus
GB1351582A (en) Ion source

Legal Events

Date Code Title Description
NAL Patent in force

Ref document number: 8405917-9

Format of ref document f/p: F

NUG Patent has lapsed