DE3470617D1 - Circuit arrangement for measuring short time intervals - Google Patents
Circuit arrangement for measuring short time intervalsInfo
- 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
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).
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)
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)
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 |
-
1983
- 1983-09-08 DE DE19833332485 patent/DE3332485A1/en not_active Withdrawn
-
1984
- 1984-08-27 DE DE8484110186T patent/DE3470617D1/en not_active Expired
- 1984-08-27 AT AT84110186T patent/ATE33723T1/en not_active IP Right Cessation
- 1984-08-27 EP EP84110186A patent/EP0142644B1/en not_active Expired
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 |