AT275657B - Circuit for multiplying two factors - especially current and voltage for real power measurement - Google Patents
Circuit for multiplying two factors - especially current and voltage for real power measurementInfo
- Publication number
- AT275657B AT275657B AT957667A AT957667A AT275657B AT 275657 B AT275657 B AT 275657B AT 957667 A AT957667 A AT 957667A AT 957667 A AT957667 A AT 957667A AT 275657 B AT275657 B AT 275657B
- Authority
- AT
- Austria
- Prior art keywords
- multiplying
- factors
- voltage
- circuit
- power measurement
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
- G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division
- G06G7/161—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division with pulse modulation, e.g. modulation of amplitude, width, frequency, phase or form
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
- G01R21/1331—Measuring real or reactive component, measuring apparent energy
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Mathematical Physics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Software Systems (AREA)
- Computer Hardware Design (AREA)
- Measurement Of Current Or Voltage (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1363567A CH457620A (en) | 1967-09-29 | 1967-09-29 | Method for multiplying two factors, in particular current and voltage for measuring active power, and circuit arrangement for performing the method |
Publications (1)
Publication Number | Publication Date |
---|---|
AT275657B true AT275657B (en) | 1969-11-10 |
Family
ID=4394070
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT957667A AT275657B (en) | 1967-09-29 | 1967-10-23 | Circuit for multiplying two factors - especially current and voltage for real power measurement |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT275657B (en) |
CH (1) | CH457620A (en) |
DE (1) | DE1549630A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4801874A (en) * | 1987-02-27 | 1989-01-31 | Process Systems, Inc. | Method and apparatus for measuring electricity |
-
1967
- 1967-09-29 CH CH1363567A patent/CH457620A/en unknown
- 1967-10-16 DE DE19671549630 patent/DE1549630A1/en active Pending
- 1967-10-23 AT AT957667A patent/AT275657B/en active
Also Published As
Publication number | Publication date |
---|---|
CH457620A (en) | 1968-06-15 |
DE1549630A1 (en) | 1971-02-04 |
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