JPS5661738A - Test method for electron gun - Google Patents

Test method for electron gun

Info

Publication number
JPS5661738A
JPS5661738A JP13760879A JP13760879A JPS5661738A JP S5661738 A JPS5661738 A JP S5661738A JP 13760879 A JP13760879 A JP 13760879A JP 13760879 A JP13760879 A JP 13760879A JP S5661738 A JPS5661738 A JP S5661738A
Authority
JP
Japan
Prior art keywords
heating
electron gun
coil
heating coil
power source
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.)
Granted
Application number
JP13760879A
Other languages
Japanese (ja)
Other versions
JPS6221214B2 (en
Inventor
Tsutomu Koizumi
Kosho Ueno
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 JP13760879A priority Critical patent/JPS5661738A/en
Publication of JPS5661738A publication Critical patent/JPS5661738A/en
Publication of JPS6221214B2 publication Critical patent/JPS6221214B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/42—Measurement or testing during manufacture

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

PURPOSE:To perform the electrode heating at any portion and to perform the test similar with the condition of manufacture process, by freely setting the shape and the number of turn of a coil, the output of power source and the heating time. CONSTITUTION:An electron gun 1 is inserted into a heating coil 5 supported by a supporting base 6 and the portion of an electron gun 1 to be tested is matched with the center of the heating coil 5. After completion of said setting, high frequency current is supplied from a power source to the heating coil 5 to heat said portion for predetermined time through induction thus to confirm the existence of crack. The heating temperature is approximately same or higher than the burning temperature of electrode during evacuation.
JP13760879A 1979-10-26 1979-10-26 Test method for electron gun Granted JPS5661738A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13760879A JPS5661738A (en) 1979-10-26 1979-10-26 Test method for electron gun

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13760879A JPS5661738A (en) 1979-10-26 1979-10-26 Test method for electron gun

Publications (2)

Publication Number Publication Date
JPS5661738A true JPS5661738A (en) 1981-05-27
JPS6221214B2 JPS6221214B2 (en) 1987-05-12

Family

ID=15202656

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13760879A Granted JPS5661738A (en) 1979-10-26 1979-10-26 Test method for electron gun

Country Status (1)

Country Link
JP (1) JPS5661738A (en)

Also Published As

Publication number Publication date
JPS6221214B2 (en) 1987-05-12

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