DE3470617D1 - Circuit arrangement for measuring short time intervals - Google Patents

Circuit arrangement for measuring short time intervals

Info

Publication number
DE3470617D1
DE3470617D1 DE8484110186T DE3470617T DE3470617D1 DE 3470617 D1 DE3470617 D1 DE 3470617D1 DE 8484110186 T DE8484110186 T DE 8484110186T DE 3470617 T DE3470617 T DE 3470617T DE 3470617 D1 DE3470617 D1 DE 3470617D1
Authority
DE
Germany
Prior art keywords
pulse
oscillator
circuit
delay element
charging
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
DE8484110186T
Other languages
German (de)
Inventor
Klaus Welzhofer
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DE8484110186T priority Critical patent/DE3470617D1/en
Application granted granted Critical
Publication of DE3470617D1 publication Critical patent/DE3470617D1/en
Expired 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Pulse Circuits (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

1. A circuit arrangement for measuring time intervals in particular very short time intervals, and for indicating the measured time interval in digital form, being supplied with a start pulse which indicates the start of the time interval to be measured and with a stop pulse which indicates the end of the time interval to be measured, and using a charging arrangement and a counting device which counts oscillator pulses, characterised in that a first delay element (ZG3) is supplied with a start pulse (SE1), that a second delay element (ZG4, ZG5) has a longer delay time than the delay time of the first delay element (ZG3) and supplied with a stop pulse (SE2), that the first delay element (ZG3) is connected to the set input of a bistable trigger circuit (FF) and the second delay element (ZG4, ZG5) is connected to the reset input of the bistable trigger circuit, that the output of the bistable trigger circuit (FF) is connected to an oscillator (OSZ) switched on when the bistable trigger circuit is set and switched off when the bistable trigger circuit is reset, that the charging arrangement consists of a first and a second charging circuit (LD1, LD2) which, during the time interval to be measured, can each alternately be connected to a constant current source (KQ) for a whole period of the oscillator pulse for the generation of a charging voltage proportional to said oscillator pulse, or in the event of the stop pulse for a shortened period, and each be alternately discharged by a discharging circuit (ET1, ET2) in push-pull to the connection to the constant current source, that the outputs of the charging circuits (LD1, LD2) can be connected by a first multiplexer (MX1) with the current potential to an amplifier circuit (VST), that the output of the amplifier circuit (VST) is connected to an analogue-digital converter (AD) switched on by a start signal (ZS6) when the stop pulse (SE2) has occurred so that the only charging voltage (UD) proportional to the duration of the shortened oscillator pulse is converted into a digital value, and that a counting device (FL, FR, NR4, NR5, BZ) is provided, which counts the whole period pulses emitted by the oscillator (OSZ).
DE8484110186T 1983-09-08 1984-08-27 Circuit arrangement for measuring short time intervals Expired DE3470617D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8484110186T DE3470617D1 (en) 1983-09-08 1984-08-27 Circuit arrangement for measuring short time intervals

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833332485 DE3332485A1 (en) 1983-09-08 1983-09-08 CIRCUIT FOR MEASURING TIME
DE8484110186T DE3470617D1 (en) 1983-09-08 1984-08-27 Circuit arrangement for measuring short time intervals

Publications (1)

Publication Number Publication Date
DE3470617D1 true DE3470617D1 (en) 1988-05-26

Family

ID=6208583

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19833332485 Withdrawn DE3332485A1 (en) 1983-09-08 1983-09-08 CIRCUIT FOR MEASURING TIME
DE8484110186T Expired DE3470617D1 (en) 1983-09-08 1984-08-27 Circuit arrangement for measuring short time intervals

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19833332485 Withdrawn DE3332485A1 (en) 1983-09-08 1983-09-08 CIRCUIT FOR MEASURING TIME

Country Status (3)

Country Link
EP (1) EP0142644B1 (en)
AT (1) ATE33723T1 (en)
DE (2) DE3332485A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7330803B2 (en) * 2005-06-22 2008-02-12 Ametek, Inc. High resolution time interval measurement apparatus and method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2855819C3 (en) * 1977-12-26 1981-05-21 Takeda Riken Kogyo K.K., Tokyo Time interval measuring device
FR2493553A1 (en) * 1980-10-31 1982-05-07 Dassault Electronique APPARATUS FOR ACCURATE DATATION OF AN EVENT IN RELATION TO A TIME REFERENCE

Also Published As

Publication number Publication date
ATE33723T1 (en) 1988-05-15
EP0142644A1 (en) 1985-05-29
EP0142644B1 (en) 1988-04-20
DE3332485A1 (en) 1985-03-28

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee