JPS6472078A - Ac peak value measuring instrument - Google Patents
Ac peak value measuring instrumentInfo
- Publication number
- JPS6472078A JPS6472078A JP22877787A JP22877787A JPS6472078A JP S6472078 A JPS6472078 A JP S6472078A JP 22877787 A JP22877787 A JP 22877787A JP 22877787 A JP22877787 A JP 22877787A JP S6472078 A JPS6472078 A JP S6472078A
- Authority
- JP
- Japan
- Prior art keywords
- data
- memory
- peak value
- differential
- sampling
- 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
Links
Abstract
PURPOSE:To easily and with high accuracy find the peak value of a sine wave alternating current by averaging the peak value obtained by making double a difference of two adjacent data when the positive and negative codes of sampling data change and the peak value in which the largest data in the sam pling data is calculated as the maximum value of the alternating amount. CONSTITUTION:Differential data is calculated by a differential data calculation part 2 based on the sampling data from a data extraction part 1, and the sampling data and the differential data are stored in a memory 6 in a time series way. A zero cross data extraction part 3 decides the difference between the positive and negative codes of two adjacent sampling data, and extracts the differential data which satisfied a specific condition from the memory 6, then, stores it in the memory 6 as zero cross data. Also, a largest data extraction part 4 extracts the sampling data in which two adjacent differential data satisfy the specific condition from the memory 6, and stores it in the memory 6 as the maximum value data. Next, the peak value is calculated by zero cross data and the maximum value data stored in the memory 6 at a peak value calculation part 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22877787A JPH0668513B2 (en) | 1987-09-12 | 1987-09-12 | AC peak value measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22877787A JPH0668513B2 (en) | 1987-09-12 | 1987-09-12 | AC peak value measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6472078A true JPS6472078A (en) | 1989-03-16 |
| JPH0668513B2 JPH0668513B2 (en) | 1994-08-31 |
Family
ID=16881681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22877787A Expired - Lifetime JPH0668513B2 (en) | 1987-09-12 | 1987-09-12 | AC peak value measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0668513B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0456132A2 (en) * | 1990-05-08 | 1991-11-13 | Kabushiki Kaisha Toshiba | System for determining an alternating voltage and/or current |
| CN108152570A (en) * | 2017-12-29 | 2018-06-12 | Tcl空调器(中山)有限公司 | A kind of alternating voltage regeneration detection method, system, storage medium and detection device |
-
1987
- 1987-09-12 JP JP22877787A patent/JPH0668513B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0456132A2 (en) * | 1990-05-08 | 1991-11-13 | Kabushiki Kaisha Toshiba | System for determining an alternating voltage and/or current |
| US5299149A (en) * | 1990-05-08 | 1994-03-29 | Kabushiki Kaisha Toshiba | System for detecting alternating voltage and/or current |
| CN108152570A (en) * | 2017-12-29 | 2018-06-12 | Tcl空调器(中山)有限公司 | A kind of alternating voltage regeneration detection method, system, storage medium and detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0668513B2 (en) | 1994-08-31 |
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