JPS56120960A - Adjusting method of frequency, synchronization, time interval and frequency ratio - Google Patents
Adjusting method of frequency, synchronization, time interval and frequency ratioInfo
- Publication number
- JPS56120960A JPS56120960A JP2406980A JP2406980A JPS56120960A JP S56120960 A JPS56120960 A JP S56120960A JP 2406980 A JP2406980 A JP 2406980A JP 2406980 A JP2406980 A JP 2406980A JP S56120960 A JPS56120960 A JP S56120960A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- signal
- synchronization
- time interval
- adjusting method
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
PURPOSE:To perform adjustment accurately and easily by determining through sensitivity that a signal to be measured is within a reference value or higher or lower than the value. CONSTITUTION:A signal from a signal-to-be-measured input terminal 1 is converted into BCD signal corresponding to the frequency of the signal to be measured by a frequency measuring circuit A and amplified 10 through the intermediary of a D/A converter 9, and thereafter is supplied to voltage comparators 12 and 13. And, there comparison is made with the reference voltage of upper and lower limits supplied from a generator 11 and, based on the result of the comparison, LED14 and 15 are lighted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2406980A JPS56120960A (en) | 1980-02-29 | 1980-02-29 | Adjusting method of frequency, synchronization, time interval and frequency ratio |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2406980A JPS56120960A (en) | 1980-02-29 | 1980-02-29 | Adjusting method of frequency, synchronization, time interval and frequency ratio |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56120960A true JPS56120960A (en) | 1981-09-22 |
Family
ID=12128140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2406980A Pending JPS56120960A (en) | 1980-02-29 | 1980-02-29 | Adjusting method of frequency, synchronization, time interval and frequency ratio |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56120960A (en) |
-
1980
- 1980-02-29 JP JP2406980A patent/JPS56120960A/en active Pending
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