JPS56132749A - Magnetron - Google Patents

Magnetron

Info

Publication number
JPS56132749A
JPS56132749A JP3488280A JP3488280A JPS56132749A JP S56132749 A JPS56132749 A JP S56132749A JP 3488280 A JP3488280 A JP 3488280A JP 3488280 A JP3488280 A JP 3488280A JP S56132749 A JPS56132749 A JP S56132749A
Authority
JP
Japan
Prior art keywords
operational space
temperature rise
bimetals
magnets
compensate
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.)
Pending
Application number
JP3488280A
Other languages
Japanese (ja)
Inventor
Seiji Yamashita
Noriyoshi Takahashi
Shoji Mogi
Tomokatsu Oguro
Takaharu Yokota
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP3488280A priority Critical patent/JPS56132749A/en
Publication of JPS56132749A publication Critical patent/JPS56132749A/en
Pending legal-status Critical Current

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
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/10—Magnet systems for directing or deflecting the discharge along a desired path, e.g. a spiral path

Landscapes

  • Microwave Tubes (AREA)

Abstract

PURPOSE:To compensate the lowering of flux density in the operational space due to the temperature rise of a permanent magnet, by arranging it movably in relation to its operational space. CONSTITUTION:As the temperature rise of a magnetron, bimetals 22, 23 will deform flat and the magnets 1, 2 will move through mutual attraction to approach to the operational space 11. Consequently the magnetic resistance in the magnetic circuit will decrease and thus increased flux will compensate the lowering of the flux density in the operational space 11 due to the temperature rise. While as the decrease of the temperatre the bimetals 22, 23 will recover their original shape and said recovering force will move the magnets 1, 2 to the direction departing from the operational space 11.
JP3488280A 1980-03-21 1980-03-21 Magnetron Pending JPS56132749A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3488280A JPS56132749A (en) 1980-03-21 1980-03-21 Magnetron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3488280A JPS56132749A (en) 1980-03-21 1980-03-21 Magnetron

Publications (1)

Publication Number Publication Date
JPS56132749A true JPS56132749A (en) 1981-10-17

Family

ID=12426504

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3488280A Pending JPS56132749A (en) 1980-03-21 1980-03-21 Magnetron

Country Status (1)

Country Link
JP (1) JPS56132749A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5357741A (en) * 1976-11-04 1978-05-25 Toshiba Corp Magnetron

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5357741A (en) * 1976-11-04 1978-05-25 Toshiba Corp Magnetron

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