JPS5570750A - Measuring method for phase difference - Google Patents

Measuring method for phase difference

Info

Publication number
JPS5570750A
JPS5570750A JP14329378A JP14329378A JPS5570750A JP S5570750 A JPS5570750 A JP S5570750A JP 14329378 A JP14329378 A JP 14329378A JP 14329378 A JP14329378 A JP 14329378A JP S5570750 A JPS5570750 A JP S5570750A
Authority
JP
Japan
Prior art keywords
time
phase difference
edges
waveform
trapesoid
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
JP14329378A
Other languages
Japanese (ja)
Inventor
Makoto Yokota
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 Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP14329378A priority Critical patent/JPS5570750A/en
Publication of JPS5570750A publication Critical patent/JPS5570750A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To enable measurement without being subject to the variation of waveform caused due to various causes, by obtaining the phase difference through the addition of the time between the front edges and that between rear edges of the rectangular wave obtained from two signals to be compared.
CONSTITUTION: The phase difference between two signals is measured by measuring the time T1, T2 between the front and rear edges of two rectangular waves C and D adding T1 and T2. The time between the time centers S1 and S2 of the signal waveform to be compared is constant, if the phase difference is constant, and the increase or decrease in the waveform is caused symmetrical toward the front and rear edge by taking the centers S1 or S2 as the center, then the time adding the time T1 between the front edges and the time T2 between rear edges of the both waveforms corresponds to the phase difference. This thinking can be applied to the trapesoid such as isoscales triangle and isoscales trapesoid, not limited to sinusoidal waves.
COPYRIGHT: (C)1980,JPO&Japio
JP14329378A 1978-11-22 1978-11-22 Measuring method for phase difference Pending JPS5570750A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14329378A JPS5570750A (en) 1978-11-22 1978-11-22 Measuring method for phase difference

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14329378A JPS5570750A (en) 1978-11-22 1978-11-22 Measuring method for phase difference

Publications (1)

Publication Number Publication Date
JPS5570750A true JPS5570750A (en) 1980-05-28

Family

ID=15335355

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14329378A Pending JPS5570750A (en) 1978-11-22 1978-11-22 Measuring method for phase difference

Country Status (1)

Country Link
JP (1) JPS5570750A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61172070A (en) * 1985-01-26 1986-08-02 Tokyo Erekutoron Kk Phase discrimination circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61172070A (en) * 1985-01-26 1986-08-02 Tokyo Erekutoron Kk Phase discrimination circuit

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