JPS57125874A - System for time digital conversion - Google Patents

System for time digital conversion

Info

Publication number
JPS57125874A
JPS57125874A JP1083981A JP1083981A JPS57125874A JP S57125874 A JPS57125874 A JP S57125874A JP 1083981 A JP1083981 A JP 1083981A JP 1083981 A JP1083981 A JP 1083981A JP S57125874 A JPS57125874 A JP S57125874A
Authority
JP
Japan
Prior art keywords
signal
time
lamp
counter
supplied
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
JP1083981A
Other languages
Japanese (ja)
Inventor
Kazuo Kato
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.)
Nippon Genshiryoku Jigyo KK
Nippon Atomic Industry Group Co Ltd
Original Assignee
Nippon Genshiryoku Jigyo KK
Nippon Atomic Industry Group 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 Nippon Genshiryoku Jigyo KK, Nippon Atomic Industry Group Co Ltd filed Critical Nippon Genshiryoku Jigyo KK
Priority to JP1083981A priority Critical patent/JPS57125874A/en
Publication of JPS57125874A publication Critical patent/JPS57125874A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F10/00—Apparatus for measuring unknown time intervals by electric means
    • G04F10/04—Apparatus for measuring unknown time intervals by electric means by counting pulses or half-cycles of an ac

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)

Abstract

PURPOSE:To measure a short time with a high precision, by using two lamp generators to extend and measure the time. CONSTITUTION:When a start signal 51 indicating the start of measurement is generated at a time t1, the start signal 51 is supplied to the first lamp generator and a counter. By this signal, the first lamp generator generates a signal 52 having a prescribed inclination alpha. A counter 45 starts counting a high-speed clock signal, which is supplied from an oscillator, from this time t1. When a stop signal 53 is generated, this signal 53 is supplied to the second lamp generator, and the second generator generates a signal 54 having a prescribed inclination beta. The inclination of the signal 54 generated from the second lamp generator 42 is set to a value slightly larger than that of the signal 52. When a comparator 44 detects the coincidence between potentials of signals 52 and 54, the counting of the counter is stopped at a time t3.
JP1083981A 1981-01-29 1981-01-29 System for time digital conversion Pending JPS57125874A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1083981A JPS57125874A (en) 1981-01-29 1981-01-29 System for time digital conversion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1083981A JPS57125874A (en) 1981-01-29 1981-01-29 System for time digital conversion

Publications (1)

Publication Number Publication Date
JPS57125874A true JPS57125874A (en) 1982-08-05

Family

ID=11761512

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1083981A Pending JPS57125874A (en) 1981-01-29 1981-01-29 System for time digital conversion

Country Status (1)

Country Link
JP (1) JPS57125874A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62249094A (en) * 1986-04-21 1987-10-30 Advantest Corp Very short time enlarging device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62249094A (en) * 1986-04-21 1987-10-30 Advantest Corp Very short time enlarging device

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