JPS5748664A - Pulse frequency detector - Google Patents

Pulse frequency detector

Info

Publication number
JPS5748664A
JPS5748664A JP12294280A JP12294280A JPS5748664A JP S5748664 A JPS5748664 A JP S5748664A JP 12294280 A JP12294280 A JP 12294280A JP 12294280 A JP12294280 A JP 12294280A JP S5748664 A JPS5748664 A JP S5748664A
Authority
JP
Japan
Prior art keywords
pulses
pulse
measured
sampling
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.)
Granted
Application number
JP12294280A
Other languages
Japanese (ja)
Other versions
JPS6319831B2 (en
Inventor
Hirotaka Miura
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.)
Yaskawa Electric Corp
Original Assignee
Yaskawa Electric Manufacturing 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 Yaskawa Electric Manufacturing Co Ltd filed Critical Yaskawa Electric Manufacturing Co Ltd
Priority to JP12294280A priority Critical patent/JPS5748664A/en
Publication of JPS5748664A publication Critical patent/JPS5748664A/en
Publication of JPS6319831B2 publication Critical patent/JPS6319831B2/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
    • G01R23/10—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into a train of pulses, which are then counted, i.e. converting the signal into a square wave

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)

Abstract

PURPOSE:To improve the accuracy of measurement without lowering the speed of response by detecting pulse frequency from the number of the pulses to be measured of a sampling period and the time intervals of the samples to be measured and sampling pulses. CONSTITUTION:The reference clocks P from a pulse generator 1 are converted to sample pulses by a frequency dividing counter 3, and these pulses are counted with a counter 4. On the other hand, the pulses to be measured from a pulse generator 2 are counted by a counter 5, and are applied as reset pulses to the counter 4. The count values of the counters 4, 5 are latched in buffer counters 7, 9, 10, and an arithmetic unit 8 makes operation by using the number N of the pulses to be measured, the time T2 from the pulse to be measured just before until the sampling pulse and the time T'2 from the pulse to be measured just before at the previous sampling until the sampling pulse, and outputs a pulse frequency F. Thereby, the accuracy of measurement is improved.
JP12294280A 1980-09-06 1980-09-06 Pulse frequency detector Granted JPS5748664A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12294280A JPS5748664A (en) 1980-09-06 1980-09-06 Pulse frequency detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12294280A JPS5748664A (en) 1980-09-06 1980-09-06 Pulse frequency detector

Publications (2)

Publication Number Publication Date
JPS5748664A true JPS5748664A (en) 1982-03-20
JPS6319831B2 JPS6319831B2 (en) 1988-04-25

Family

ID=14848424

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12294280A Granted JPS5748664A (en) 1980-09-06 1980-09-06 Pulse frequency detector

Country Status (1)

Country Link
JP (1) JPS5748664A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5848868A (en) * 1981-09-18 1983-03-22 Fuji Electric Co Ltd Measuring method for pulse frequency
JPS58213254A (en) * 1982-03-22 1983-12-12 ザ・ベンデイツクス・コ−ポレ−シヨン Method and device for measuring speed of rotatory body
JPS5913957A (en) * 1982-07-15 1984-01-24 Fanuc Ltd Speed detecting circuit
JPS5985963A (en) * 1982-04-15 1984-05-18 アルフレツド・テヴエス・ゲ−エムベ−ハ− Method and device for generating numerical value proportionato pulse frequency of pulse signal row to be measured

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5848868A (en) * 1981-09-18 1983-03-22 Fuji Electric Co Ltd Measuring method for pulse frequency
JPS58213254A (en) * 1982-03-22 1983-12-12 ザ・ベンデイツクス・コ−ポレ−シヨン Method and device for measuring speed of rotatory body
JPS5985963A (en) * 1982-04-15 1984-05-18 アルフレツド・テヴエス・ゲ−エムベ−ハ− Method and device for generating numerical value proportionato pulse frequency of pulse signal row to be measured
JPS5913957A (en) * 1982-07-15 1984-01-24 Fanuc Ltd Speed detecting circuit

Also Published As

Publication number Publication date
JPS6319831B2 (en) 1988-04-25

Similar Documents

Publication Publication Date Title
JPS5693079A (en) Measurement of time duration
JPS5748664A (en) Pulse frequency detector
JPS57189588A (en) Speed detecting system
JPS5423584A (en) Pulse count type speed detector
JPS57204457A (en) Revolving speed detecting device
JPS5428669A (en) Noise measuring circuit
JPS5432371A (en) Rotating speed detector
JPS54156579A (en) Temperature measuring apparatus
SU619868A2 (en) Signal frequency measuring device
JPS5682413A (en) Counter circuit of digital measuring instrument
JPS6484157A (en) Method and device for current detection
SU586386A1 (en) Device for measuring drive speed
JPS5284762A (en) Detector for measuring transmission characteristics of optical fiber
GB1517533A (en) Stress wave emission analysis systems
JPS57554A (en) Tachometer for high speed sampling
JPS6473257A (en) Rotational speed detector for engine
JPS55138923A (en) Pulse width detecting device
JPS57128809A (en) Length measuring device for steel material
JPS5468279A (en) Measuring method of contact operating time
JPS5317364A (en) Digital display type tape measure
JPS5277769A (en) Rate measuring device
JPS56168558A (en) Analog high-speed tachometer
JPS5561865A (en) Information processor
FR1502160A (en) Method and device for increasing sensitivity, improving detection limits and measuring accuracy in mass spectrometers
JPS57153222A (en) Liquid quantity measuring circuit