JPS5551392A - Time counter - Google Patents
Time counterInfo
- Publication number
- JPS5551392A JPS5551392A JP12584278A JP12584278A JPS5551392A JP S5551392 A JPS5551392 A JP S5551392A JP 12584278 A JP12584278 A JP 12584278A JP 12584278 A JP12584278 A JP 12584278A JP S5551392 A JPS5551392 A JP S5551392A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- gate
- supplied
- circuit
- counter
- 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 stabilize the gate operation for the measurement of the operation time of the breaker or the like by inserting the insulating circuit to one side of the plural units of input signal system, thus ensuring an accurate measurement of the time error even though some potential difference exists between the input signals.
CONSTITUTION: When start input signal (b) is applied to signal lines 31 and 32, signal (b) is supplied to insulating circuit 9 after rectification 4. And the signal drawn out via the photo coupling circuit turns on gate circuit 7. Thus clock signal (a) obtained by dividing 2 the output of reference oscillator 1 is supplied to counter 8 via gate 7. Then with application of stop signal (c) to signal lines 51 and 52, this signal is then supplied to gate 7 after rectification 6 to close gate 7. Thus the time difference between signals (b) and (c) is measured via the count value of counter 8.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12584278A JPS5551392A (en) | 1978-10-12 | 1978-10-12 | Time counter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12584278A JPS5551392A (en) | 1978-10-12 | 1978-10-12 | Time counter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5551392A true JPS5551392A (en) | 1980-04-15 |
Family
ID=14920287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12584278A Pending JPS5551392A (en) | 1978-10-12 | 1978-10-12 | Time counter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5551392A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61194965A (en) * | 1985-02-22 | 1986-08-29 | Nippon Denki Syst Kensetsu Kk | Telephone voice recording system |
-
1978
- 1978-10-12 JP JP12584278A patent/JPS5551392A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61194965A (en) * | 1985-02-22 | 1986-08-29 | Nippon Denki Syst Kensetsu Kk | Telephone voice recording system |
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