JPS647348B2 - - Google Patents

Info

Publication number
JPS647348B2
JPS647348B2 JP6423681A JP6423681A JPS647348B2 JP S647348 B2 JPS647348 B2 JP S647348B2 JP 6423681 A JP6423681 A JP 6423681A JP 6423681 A JP6423681 A JP 6423681A JP S647348 B2 JPS647348 B2 JP S647348B2
Authority
JP
Japan
Prior art keywords
main body
timer
radioactive substance
resistance element
voltage
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.)
Expired
Application number
JP6423681A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57179684A (en
Inventor
Yoshihiko Murayama
Shinji Takashima
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.)
Nemoto and Co Ltd
Ricoh Co Ltd
Original Assignee
Nemoto and Co Ltd
Ricoh Co 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 Nemoto and Co Ltd, Ricoh Co Ltd filed Critical Nemoto and Co Ltd
Priority to JP6423681A priority Critical patent/JPS57179684A/ja
Publication of JPS57179684A publication Critical patent/JPS57179684A/ja
Publication of JPS647348B2 publication Critical patent/JPS647348B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
    • G04F5/16—Apparatus for producing preselected time intervals for use as timing standards using pulses produced by radio-isotopes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
JP6423681A 1981-04-30 1981-04-30 Timer element Granted JPS57179684A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6423681A JPS57179684A (en) 1981-04-30 1981-04-30 Timer element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6423681A JPS57179684A (en) 1981-04-30 1981-04-30 Timer element

Publications (2)

Publication Number Publication Date
JPS57179684A JPS57179684A (en) 1982-11-05
JPS647348B2 true JPS647348B2 (OSRAM) 1989-02-08

Family

ID=13252285

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6423681A Granted JPS57179684A (en) 1981-04-30 1981-04-30 Timer element

Country Status (1)

Country Link
JP (1) JPS57179684A (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112506027B (zh) * 2021-01-27 2025-03-25 厦门市集美区乐安中学 一种首点定位高准度的电火花打点计时器

Also Published As

Publication number Publication date
JPS57179684A (en) 1982-11-05

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