JPS5463871A - Mean time interval metering circuit - Google Patents
Mean time interval metering circuitInfo
- Publication number
- JPS5463871A JPS5463871A JP12970377A JP12970377A JPS5463871A JP S5463871 A JPS5463871 A JP S5463871A JP 12970377 A JP12970377 A JP 12970377A JP 12970377 A JP12970377 A JP 12970377A JP S5463871 A JPS5463871 A JP S5463871A
- Authority
- JP
- Japan
- Prior art keywords
- frequency divider
- time interval
- quantitization
- response
- clocks
- 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
Links
Abstract
PURPOSE: To reduce the error in quantitization by controlling the input side of a frequency divider which is made operative to generate counting clocks in response to start and stop signals.
CONSTITUTION: In accordance with a start and stop signals generating circuit, the pulses of a width, which have passed through an FF 5, a 1/10n frequency divider 6 and a monostable multivibrator 7 are fed to a counter 4 so that this counter 4 counts the clocks, which have been subjected to frequency division by the 1/10m frequency divider 2 of a quartz oscillator 1 to measure the time interval between the start and stop. These measurements are repeated to determine the mean time interval. In this instance, the frequency divider 2 divides the frequencies of the clocks of the oscillator 1, which have passed through such a gate 3' as is opened in response to the start signals and closed in response to the stop signals. As a result, the errors in quantitization after the measurements of 10n times becomes 1/10m x 10n of the width of the output pulses of the oscillator 1 so that the error in the quantitization can be reduced in comparison with the case, in which the gate 3' is provided at the output side of the frequency divider 2.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12970377A JPS5463871A (en) | 1977-10-31 | 1977-10-31 | Mean time interval metering circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12970377A JPS5463871A (en) | 1977-10-31 | 1977-10-31 | Mean time interval metering circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5463871A true JPS5463871A (en) | 1979-05-23 |
Family
ID=15016103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12970377A Pending JPS5463871A (en) | 1977-10-31 | 1977-10-31 | Mean time interval metering circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5463871A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58148688U (en) * | 1982-03-31 | 1983-10-05 | アンリツ株式会社 | time measuring device |
| JPS61169789A (en) * | 1985-01-22 | 1986-07-31 | Nippon Telegr & Teleph Corp <Ntt> | Pulse measuring apparatus |
| JPS6237791U (en) * | 1986-07-24 | 1987-03-06 | ||
| JPS6344189U (en) * | 1986-09-08 | 1988-03-24 |
-
1977
- 1977-10-31 JP JP12970377A patent/JPS5463871A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58148688U (en) * | 1982-03-31 | 1983-10-05 | アンリツ株式会社 | time measuring device |
| JPS6326795Y2 (en) * | 1982-03-31 | 1988-07-20 | ||
| JPS61169789A (en) * | 1985-01-22 | 1986-07-31 | Nippon Telegr & Teleph Corp <Ntt> | Pulse measuring apparatus |
| JPS6237791U (en) * | 1986-07-24 | 1987-03-06 | ||
| JPS6344189U (en) * | 1986-09-08 | 1988-03-24 |
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