JPS578458A - Device for measuring frequency - Google Patents

Device for measuring frequency

Info

Publication number
JPS578458A
JPS578458A JP8361380A JP8361380A JPS578458A JP S578458 A JPS578458 A JP S578458A JP 8361380 A JP8361380 A JP 8361380A JP 8361380 A JP8361380 A JP 8361380A JP S578458 A JPS578458 A JP S578458A
Authority
JP
Japan
Prior art keywords
circuit
measured
frequency
gate
signal
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.)
Granted
Application number
JP8361380A
Other languages
Japanese (ja)
Other versions
JPS6329227B2 (en
Inventor
Yasuhiro Igai
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP8361380A priority Critical patent/JPS578458A/en
Publication of JPS578458A publication Critical patent/JPS578458A/en
Publication of JPS6329227B2 publication Critical patent/JPS6329227B2/ja
Granted 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
    • G01R23/06—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into an amplitude of current or voltage
    • G01R23/09—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into an amplitude of current or voltage using analogue integrators, e.g. capacitors establishing a mean value by balance of input signals and defined discharge signals or leakage

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)

Abstract

PURPOSE:To make the frequency of the signal to be measured measurable with high accuracy with simple circuit constitution by subtracting reference clock pulses from the prescribed preset value during the prescribed period of low frequency signals. CONSTITUTION:The frequency f to be measured entering from an input terminal 1 is divided by n by a gate signal generating circuit 2, to make gate signals. On the other hand, the output of a clock pulse generating circuit 10 built in with a quartz vibrator 9 is divided into (m) by a (m) frequency divider 11 and is inputted together with the gate signals to an AND gate circuit 4. The value prescribed times the reference value of the frequency to be measured is preset in a down counter 5 by a presetting circuit 6, so that the outputs of the gate circuit are down-counted. Upon ending of the counting, the output of the counter 5 is displayed in a display device 8 having a latch circuit. Thereby, the fluctuating components of the signal to be measured with respect to the reference value are measured accurately in real time.
JP8361380A 1980-06-19 1980-06-19 Device for measuring frequency Granted JPS578458A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8361380A JPS578458A (en) 1980-06-19 1980-06-19 Device for measuring frequency

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8361380A JPS578458A (en) 1980-06-19 1980-06-19 Device for measuring frequency

Publications (2)

Publication Number Publication Date
JPS578458A true JPS578458A (en) 1982-01-16
JPS6329227B2 JPS6329227B2 (en) 1988-06-13

Family

ID=13807331

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8361380A Granted JPS578458A (en) 1980-06-19 1980-06-19 Device for measuring frequency

Country Status (1)

Country Link
JP (1) JPS578458A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6315514A (en) * 1986-07-08 1988-01-22 Sanyo Electric Co Ltd Counter circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5010169A (en) * 1973-05-25 1975-02-01

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5010169A (en) * 1973-05-25 1975-02-01

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6315514A (en) * 1986-07-08 1988-01-22 Sanyo Electric Co Ltd Counter circuit
JPH058887B2 (en) * 1986-07-08 1993-02-03 Sanyo Electric Co

Also Published As

Publication number Publication date
JPS6329227B2 (en) 1988-06-13

Similar Documents

Publication Publication Date Title
US3553582A (en) Method and apparatus for measuring a time interval
CH626499GA3 (en)
JPS578458A (en) Device for measuring frequency
JPS5719689A (en) Electronic clock
GB770035A (en) Improvements in or relating to apparatus for the evaluation of low frequencies
JPS53104277A (en) Electronic watch
SU619868A2 (en) Signal frequency measuring device
JPS5624526A (en) Electronic balance
SU949623A1 (en) Square pulse center meter
JPS56130664A (en) Frequency measuring system
JPS5540952A (en) Temperature measurement unit
JPS5465582A (en) Judgement circuit of chattering time
JPS5446582A (en) Time informing watch of digital type
JPS55117973A (en) Period measuring unit
JPS55147370A (en) Calibration device for supersonic wave measuring instrument
JPS5663269A (en) Phase difference measuring device
JPS6443767A (en) Frequency discriminating device
JPS5643562A (en) Frequency counter
JPS55126863A (en) Frequency measuring method
JPS57190232A (en) Tuning device
JPS5571980A (en) Electronic wrist watch with pulsation counting function
GB1347261A (en) Method and apparatus for measuring the mass transfer rate of material passing through a pump
JPS5468279A (en) Measuring method of contact operating time
JPS56164967A (en) Frequency meter
JPS5752868A (en) Measuring device for electrical angle