JPS5554456A - Dark current measuring instrument for magnetron - Google Patents

Dark current measuring instrument for magnetron

Info

Publication number
JPS5554456A
JPS5554456A JP10270878A JP10270878A JPS5554456A JP S5554456 A JPS5554456 A JP S5554456A JP 10270878 A JP10270878 A JP 10270878A JP 10270878 A JP10270878 A JP 10270878A JP S5554456 A JPS5554456 A JP S5554456A
Authority
JP
Japan
Prior art keywords
anode
dark current
current
magnetron
magnetic field
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
JP10270878A
Other languages
Japanese (ja)
Inventor
Toru Oi
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 JP10270878A priority Critical patent/JPS5554456A/en
Publication of JPS5554456A publication Critical patent/JPS5554456A/en
Pending legal-status Critical Current

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  • Measurement Of Current Or Voltage (AREA)
  • Tests Of Electronic Circuits (AREA)

Abstract

PURPOSE: To simplify the measurement of a dark current by finding the dark current by measuring a current value when an anode current obtained by radiating hot electrons from a cathode is provided with a magnetic field or an anode voltage value when the current value is held constant.
CONSTITUTION: Anode cylinder 1 is internally equipped with a cathode, vein, etc., and inside of it, a vacuum is produced to constitute a magnetron. Under and over anode cylinder 1, permanent magnets 4 of "N" and "S" are fixed so as to provide a magnetic field inside and outside of anode cylinder 1. For measurement, switches S1 and S2 are both turned ON with the magnetic field provided inside of anode cylinder 1. At this time, anode current Ii by hot electrons from a cathod in anode cylinder 1 or anode voltage Ei when constant Ii is set is indicated by meter 6. This value is read and then related to a characteristic curve between Ii or Ei and dark current Ib, so that dark current Ib of the magnetron can easily be measured.
COPYRIGHT: (C)1980,JPO&Japio
JP10270878A 1978-08-25 1978-08-25 Dark current measuring instrument for magnetron Pending JPS5554456A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10270878A JPS5554456A (en) 1978-08-25 1978-08-25 Dark current measuring instrument for magnetron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10270878A JPS5554456A (en) 1978-08-25 1978-08-25 Dark current measuring instrument for magnetron

Publications (1)

Publication Number Publication Date
JPS5554456A true JPS5554456A (en) 1980-04-21

Family

ID=14334760

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10270878A Pending JPS5554456A (en) 1978-08-25 1978-08-25 Dark current measuring instrument for magnetron

Country Status (1)

Country Link
JP (1) JPS5554456A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6155842A (en) * 1984-08-27 1986-03-20 Hitachi Ltd Device for modifying dark current of magnetron
KR101048054B1 (en) 2009-01-14 2011-07-08 한국전기연구원 Magnetron performance analyzer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6155842A (en) * 1984-08-27 1986-03-20 Hitachi Ltd Device for modifying dark current of magnetron
KR101048054B1 (en) 2009-01-14 2011-07-08 한국전기연구원 Magnetron performance analyzer

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