JPS56120960A - Adjusting method of frequency, synchronization, time interval and frequency ratio - Google Patents

Adjusting method of frequency, synchronization, time interval and frequency ratio

Info

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
Application number
JP2406980A
Other languages
Japanese (ja)
Inventor
Kenji Tokue
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP2406980A priority Critical patent/JPS56120960A/en
Publication of JPS56120960A publication Critical patent/JPS56120960A/en
Pending legal-status Critical Current

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.
JP2406980A 1980-02-29 1980-02-29 Adjusting method of frequency, synchronization, time interval and frequency ratio Pending JPS56120960A (en)

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)

Similar Documents

Publication Publication Date Title
FR2437648B1 (en)
ES488246A1 (en) Apparatus to register the quantity of sebum secreted by a skin
JPS56120960A (en) Adjusting method of frequency, synchronization, time interval and frequency ratio
FR2425628A1 (en) Linear dual-slope measurement system - first integrates voltage over given time interval, then integrates according to response curve of measuring pick=up
JPS5724804A (en) Detector for crack depth
JPS5554478A (en) Comparing test method
JPS5319851A (en) Measuring method for transmission characteristic of photo-fiber
JPS5642405A (en) Fm modulating circuit
JPS55131718A (en) Measuring device
JPS531571A (en) Measuring system
JPS57148266A (en) Wattmeter
JPS57135373A (en) Power supply device for measuring electric power apparatus
JPS5377659A (en) Distance detector
JPS53149385A (en) Flame photometer
JPS5433768A (en) Tester for insulated resistor
JPS5218389A (en) Electromagnetic induction type detecting device
JPS51129245A (en) Frequency measuring method
JPS53121508A (en) Noise factor measurement method for receiving frequency converter
JPS5654338A (en) Simple checker of gas analyzer
JPS57200842A (en) Cereals moisture measuring device equipped with temperature compensating function for oscillating circuit
JPS5722569A (en) Radio disturbance resistance evaluating apparatus for electrical appliance
JPS5494222A (en) Input impefance measuring method for facsimile transceiver
JPS56168169A (en) Method for measuring wide band impedance
GB1555224A (en) Method of and means for accurately measuring the calorific value of combustibile gases
JPS56145368A (en) Circuit for measuring characteristic of coder