JPS5465582A - Judgement circuit of chattering time - Google Patents
Judgement circuit of chattering timeInfo
- Publication number
- JPS5465582A JPS5465582A JP14973177A JP14973177A JPS5465582A JP S5465582 A JPS5465582 A JP S5465582A JP 14973177 A JP14973177 A JP 14973177A JP 14973177 A JP14973177 A JP 14973177A JP S5465582 A JPS5465582 A JP S5465582A
- Authority
- JP
- Japan
- Prior art keywords
- chattering
- input
- register
- contacts
- time
- 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
Landscapes
- Measurement Of Unknown Time Intervals (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
PURPOSE: To measure chattering sustanining time with a simple circuit constitution by generating clock pluses through closing of the contacts to be measured and reading these with the chattering pulses generated through closing of said contacts.
CONSTITUTION: When the contacts to be measured close, a monostable multi 5 goes ON. A clock pulse generator 7 then generates a clock pulse. This pulse is inputted to a series input parallel output register 8. At each input, each Q output subsequently inverts and inputs to the inputs D1... of a parallel input parallel output register 6 corresponding to respective Q outputs. When at the same time the chattering generated by closing the contacts 1 to be measured is supplied to the register 6, the signal being supplied to the D input of the register 6 at that time is read at the negative edge of said chattering pulse and the same state as that of said input signal is outputted to the Q' output corresponding to the D input. Namely, if the period of the clock pulse is Tw, it turns out that the sustaining time of the chattering had been between m.Tw and (m+1).Tw. Hence, a display LED is driven by the Q' output of the register 6.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14973177A JPS5465582A (en) | 1977-12-13 | 1977-12-13 | Judgement circuit of chattering time |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14973177A JPS5465582A (en) | 1977-12-13 | 1977-12-13 | Judgement circuit of chattering time |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5465582A true JPS5465582A (en) | 1979-05-26 |
Family
ID=15481572
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14973177A Pending JPS5465582A (en) | 1977-12-13 | 1977-12-13 | Judgement circuit of chattering time |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5465582A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6244297U (en) * | 1985-09-04 | 1987-03-17 | ||
JPH01105184A (en) * | 1987-10-17 | 1989-04-21 | Fujitsu Ltd | Measurement system for chattering time |
JPH07102624A (en) * | 1993-10-07 | 1995-04-18 | Hokushiyou Cement Kogyosho:Kk | Gutter block |
-
1977
- 1977-12-13 JP JP14973177A patent/JPS5465582A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6244297U (en) * | 1985-09-04 | 1987-03-17 | ||
JPH01105184A (en) * | 1987-10-17 | 1989-04-21 | Fujitsu Ltd | Measurement system for chattering time |
JPH07102624A (en) * | 1993-10-07 | 1995-04-18 | Hokushiyou Cement Kogyosho:Kk | Gutter block |
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