JPS5560866A - Higher harmonic phase detector - Google Patents
Higher harmonic phase detectorInfo
- Publication number
- JPS5560866A JPS5560866A JP13596878A JP13596878A JPS5560866A JP S5560866 A JPS5560866 A JP S5560866A JP 13596878 A JP13596878 A JP 13596878A JP 13596878 A JP13596878 A JP 13596878A JP S5560866 A JPS5560866 A JP S5560866A
- Authority
- JP
- Japan
- Prior art keywords
- higher harmonic
- component
- phase difference
- extracted
- filters
- 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
Links
Landscapes
- Measuring Phase Differences (AREA)
Abstract
PURPOSE: To facilitate the detection of phase difference between a basic wave component and each higher harmonic component and effectively detect the distorted wave characteristic of an AC signal, by selectively extracting the higher harmonic component, frequency-dividing the extracted component and indicating the phase difference between the basic wave component and the higher harmonic component.
CONSTITUTION: The basic wave component (b) of an AC signal (a) is extracted by a filter 1-1 and applied to the first inputs of phase difference detectors 5i. The higher harmonic components (c) of the AC signal are extracted by filters 1-2W1-n, amplified and changed into rectangular waves (d) at 3i. The rectangular waves are frequency-divided to one third by frequency division circuits 4-i and then applied to filters 7-i. Reference wave components (f) extracted by the filters 7-i are applied to the second inputs of the phase difference detectors 5-i. The phase difference θ between the basic wave component and the higher harmonic wave component is picked out from each detector.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13596878A JPS5560866A (en) | 1978-10-31 | 1978-10-31 | Higher harmonic phase detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13596878A JPS5560866A (en) | 1978-10-31 | 1978-10-31 | Higher harmonic phase detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5560866A true JPS5560866A (en) | 1980-05-08 |
Family
ID=15164059
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13596878A Pending JPS5560866A (en) | 1978-10-31 | 1978-10-31 | Higher harmonic phase detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5560866A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104569586A (en) * | 2014-11-22 | 2015-04-29 | 安徽国电京润电力科技有限公司 | High-precision phase difference measuring method based on CRIO platform |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5123175A (en) * | 1974-08-21 | 1976-02-24 | Hitachi Ltd | SHINGOBUNSE KISOCHI |
-
1978
- 1978-10-31 JP JP13596878A patent/JPS5560866A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5123175A (en) * | 1974-08-21 | 1976-02-24 | Hitachi Ltd | SHINGOBUNSE KISOCHI |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104569586A (en) * | 2014-11-22 | 2015-04-29 | 安徽国电京润电力科技有限公司 | High-precision phase difference measuring method based on CRIO platform |
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