JPS5633584A - Measurement of time delay - Google Patents

Measurement of time delay

Info

Publication number
JPS5633584A
JPS5633584A JP10877279A JP10877279A JPS5633584A JP S5633584 A JPS5633584 A JP S5633584A JP 10877279 A JP10877279 A JP 10877279A JP 10877279 A JP10877279 A JP 10877279A JP S5633584 A JPS5633584 A JP S5633584A
Authority
JP
Japan
Prior art keywords
measurement
frequency
time delay
counter
output 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.)
Pending
Application number
JP10877279A
Other languages
Japanese (ja)
Inventor
Noboru Oki
Kenichi Kishi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP10877279A priority Critical patent/JPS5633584A/en
Publication of JPS5633584A publication Critical patent/JPS5633584A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To conduct the measurement with less error, by determining position of a crossing point between an input signal and an output signal on an oscilloscope picture and also by calculating time delay from a measurement value of frequency of the output signal using a counter.
CONSTITUTION: An oscillator 4 which generates variable-frequency pulses is connected to an input terminal 2 of a device 1 to be measured, the frequency counter 7 is connected to an output terminal 3, and the oscilloscope 5 is connected between the input terminal 2 and the output terminal 3. And by varying the oscillation frequency of the oscillator 4, it is indicated on the oscilloscope picture that a point of 1/2 amplitude at the input signal rise time coincides with a point of 1/2 amplitude at the output signal fall time. And then, under this condition, the frequency is measured by the counter 7 to calculate the time delay. And therefore, it is possible to prevent introduction of measurement error even at the time of a large time delay and also to conduct the measurement with less error.
COPYRIGHT: (C)1981,JPO&Japio
JP10877279A 1979-08-27 1979-08-27 Measurement of time delay Pending JPS5633584A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10877279A JPS5633584A (en) 1979-08-27 1979-08-27 Measurement of time delay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10877279A JPS5633584A (en) 1979-08-27 1979-08-27 Measurement of time delay

Publications (1)

Publication Number Publication Date
JPS5633584A true JPS5633584A (en) 1981-04-04

Family

ID=14493088

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10877279A Pending JPS5633584A (en) 1979-08-27 1979-08-27 Measurement of time delay

Country Status (1)

Country Link
JP (1) JPS5633584A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57175275A (en) * 1981-04-21 1982-10-28 Fujitsu Ltd Delayed time measuring circuit
JPS57175276A (en) * 1981-04-21 1982-10-28 Fujitsu Ltd Delayed time measuring circuit
JPS58175124U (en) * 1982-05-20 1983-11-22 日産ディーゼル工業株式会社 Intake system for V-8 internal combustion engine
JPS59122966A (en) * 1982-12-21 1984-07-16 Fujitsu Ltd Measurement of delay time
JPS6060258A (en) * 1983-09-08 1985-04-06 Honda Motor Co Ltd Air suction device for v-type multi-cylinder internal-combustion engine
JPS6069254A (en) * 1983-09-08 1985-04-19 Honda Motor Co Ltd Suction manifold for v-type multi-cylinder internal- combustion engine
JPS60138265A (en) * 1983-12-27 1985-07-22 Honda Motor Co Ltd Intake device for v-type multi-cylinder internal- combustion engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4918068A (en) * 1972-06-08 1974-02-18

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4918068A (en) * 1972-06-08 1974-02-18

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57175275A (en) * 1981-04-21 1982-10-28 Fujitsu Ltd Delayed time measuring circuit
JPS57175276A (en) * 1981-04-21 1982-10-28 Fujitsu Ltd Delayed time measuring circuit
JPS58175124U (en) * 1982-05-20 1983-11-22 日産ディーゼル工業株式会社 Intake system for V-8 internal combustion engine
JPS59122966A (en) * 1982-12-21 1984-07-16 Fujitsu Ltd Measurement of delay time
JPS6356506B2 (en) * 1982-12-21 1988-11-08 Fujitsu Ltd
JPS6060258A (en) * 1983-09-08 1985-04-06 Honda Motor Co Ltd Air suction device for v-type multi-cylinder internal-combustion engine
JPS6069254A (en) * 1983-09-08 1985-04-19 Honda Motor Co Ltd Suction manifold for v-type multi-cylinder internal- combustion engine
JPS60138265A (en) * 1983-12-27 1985-07-22 Honda Motor Co Ltd Intake device for v-type multi-cylinder internal- combustion engine
JPH0235854B2 (en) * 1983-12-27 1990-08-14 Honda Motor Co Ltd

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