JPS5664661A - Measuring apparatus of dc electric energy - Google Patents
Measuring apparatus of dc electric energyInfo
- Publication number
- JPS5664661A JPS5664661A JP14067779A JP14067779A JPS5664661A JP S5664661 A JPS5664661 A JP S5664661A JP 14067779 A JP14067779 A JP 14067779A JP 14067779 A JP14067779 A JP 14067779A JP S5664661 A JPS5664661 A JP S5664661A
- Authority
- JP
- Japan
- Prior art keywords
- electric energy
- converter
- processor
- digital
- voltage
- 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
Abstract
PURPOSE: To measure electric energy with high accuracy and stably by a method wherein current and voltage are converted in an A/D converter, and thereafter, digital multiplication is performed and further, accumulation in high accurate time is performed.
CONSTITUTION: A current signal is detected through a current detector 10 and is converter into a digital signal through an A/D converter 12 and thereafter, it passes through an input register 14 and is read in a processor 16. In the same way, a voltage signal adding in a load is detected through a voltage detector 11 and is converted into a digital signal through an A/D converter 13 and then, it passes through an input register 15 and is read in the processor 16. The processor 16 is constantly accessing a digital input circuit 20 and when a start signal ST becomes "1", then, it multiplies a digital value of current by a digital value of voltage to obtain electric energy. And further, the processor 16 obtains electric energy by each hour by a timer 19 and this electric energy quantity is displayed on a numeric indicator 18 by means of an output register 17.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14067779A JPS5664661A (en) | 1979-10-31 | 1979-10-31 | Measuring apparatus of dc electric energy |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14067779A JPS5664661A (en) | 1979-10-31 | 1979-10-31 | Measuring apparatus of dc electric energy |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5664661A true JPS5664661A (en) | 1981-06-01 |
Family
ID=15274181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14067779A Pending JPS5664661A (en) | 1979-10-31 | 1979-10-31 | Measuring apparatus of dc electric energy |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5664661A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04295939A (en) * | 1991-03-25 | 1992-10-20 | Yokogawa Electric Corp | Batch process type recorder |
-
1979
- 1979-10-31 JP JP14067779A patent/JPS5664661A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04295939A (en) * | 1991-03-25 | 1992-10-20 | Yokogawa Electric Corp | Batch process type recorder |
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