RU94046440A - METHOD AND DEVICE FOR VOLTAGE MEASUREMENT - Google Patents
METHOD AND DEVICE FOR VOLTAGE MEASUREMENTInfo
- Publication number
- RU94046440A RU94046440A RU94046440/09A RU94046440A RU94046440A RU 94046440 A RU94046440 A RU 94046440A RU 94046440/09 A RU94046440/09 A RU 94046440/09A RU 94046440 A RU94046440 A RU 94046440A RU 94046440 A RU94046440 A RU 94046440A
- Authority
- RU
- Russia
- Prior art keywords
- calculating
- measuring
- voltage
- samples
- unknown voltage
- Prior art date
Links
- 238000005259 measurement Methods 0.000 title claims 5
- 238000001914 filtration Methods 0.000 claims 5
- 230000035882 stress Effects 0.000 claims 2
Claims (33)
V1N = V01 • V02 • V03/[V01 • V03) + (V02 • V03) - (V01 • V02)].2. The method according to claim 1, characterized in that step (c) includes the step of calculating the unknown voltage using the following equation:
V 1N = V 01 • V 02 • V 03 / [V 01 • V 03 ) + (V 02 • V 03 ) - (V 01 • V 02 )].
V1N = V01/K1,
V1N = V02/K2,
V1N = V03/K3,
V1N = V01 • V02 • V03/[(V01 • V03) + (V02 • V03) - (V01 • V02)],
где каждая из величин K1, K2 и K3 является функцией переменных V01, V02 и V03.3. The method according to claim 1, characterized in that step (c) includes the step of calculating the unknown voltage using at least one of the following equations:
V 1N = V 01 / K1,
V 1N = V 02 / K2,
V 1N = V 03 / K3,
V 1N = V 01 • V 02 • V 03 / [(V 01 • V 03 ) + (V 02 • V 03 ) - (V 01 • V 02 )],
where each of the quantities K1, K2 and K3 is a function of the variables V 01 , V 02 and V 03 .
K1 = [(V01 • V03) + (V02 • V03) - (V01 • V02)]/(V02 • V03),
K2 = [(V01 • V03) + (V02 • V03) - (V01 • V02)]/(V01 • V03),
K3 = [(V01 • V03) + (V02 • V03) - (V01 • V02)]/(V01 • V02).4. The method according to claim 3, characterized in that it includes the step of calculating K1, K2 and K3 using the following equations:
K1 = [(V 01 • V 03 ) + (V 02 • V 03 ) - (V 01 • V 02 )] / (V 02 • V 03 ),
K2 = [(V 01 • V 03 ) + (V 02 • V 03 ) - (V 01 • V 02 )] / (V 01 • V 03 ),
K3 = [(V 01 • V 03 ) + (V 02 • V 03 ) - (V 01 • V 02 )] / (V 01 • V 02 ).
K1 = R2/(R1 + R2),
K2 = R3/(R1 + R3),
K3 = R2 • R3/(R1 • R2 + R1 • R3 + R2 • R3),
где R1, R2 и R3 - приблизительные величины сопротивлений указанных первого, второго и третьего резисторных средств.5. The method according to claim 3, characterized in that it includes the step of calculating K1, K2 and K3 using the following equations:
K1 = R 2 / (R 1 + R 2 ),
K2 = R 3 / (R 1 + R 3 ),
K3 = R 2 • R 3 / (R 1 • R 2 + R 1 • R 3 + R 2 • R 3 ),
where R 1 , R 2 and R 3 are approximate values of the resistances of the indicated first, second and third resistor means.
K1 = [(V01 • V03) + (V02 • V03) - (V01 • V02)]/(V02 • V03),
K2 = [(V01 • V03) + (V02 • V03) - (V01 • V02)]/(V01 • V03),
K3 = [(V01 • V03) + (V02 • V03) - (V01 • V02)]/(V01 • V02)
и низкочастотную фильтрацию величин K1, K2 и K3.12. The method according to claim 3, characterized in that it includes the following steps: measuring a plurality of samples V 01 , V 02 and V 03 during a plurality of cycles of the specified unknown voltage; calculating K1, K2, and K3 using the following equations:
K1 = [(V 01 • V 03 ) + (V 02 • V 03 ) - (V 01 • V 02 )] / (V 02 • V 03 ),
K2 = [(V 01 • V 03 ) + (V 02 • V 03 ) - (V 01 • V 02 )] / (V 01 • V 03 ),
K3 = [(V 01 • V 03 ) + (V 02 • V 03 ) - (V 01 • V 02 )] / (V 01 • V 02 )
and low-pass filtering of K1, K2 and K3.
V1N = V01 • V02 • V03/[(V01 • V03) + (V02 • V03) - (V01 • V02)].14. The device according to item 13, wherein the specified computing tool contains means for calculating the specified unknown voltage using the following equation:
V 1N = V 01 • V 02 • V 03 / [(V 01 • V 03 ) + (V 02 • V 03 ) - (V 01 • V 02 )].
V1N = V01/K1,
V1N = V02/K2,
V1N = V03/K3,
V1N = V01 • V02 • V03/[(V01 • V03) = (V02 • V03) - (V01 • V02)],
где каждая из величин K1, K2 и K3 является функцией переменных V01, V02 и V03.15. The device according to item 13, wherein said computing means comprises means for calculating said unknown voltage using at least one of the following equations:
V 1N = V 01 / K1,
V 1N = V 02 / K2,
V 1N = V 03 / K3,
V 1N = V 01 • V 02 • V 03 / [(V 01 • V 03 ) = (V 02 • V 03 ) - (V 01 • V 02 )],
where each of the quantities K1, K2 and K3 is a function of the variables V 01 , V 02 and V 03 .
K1 = [(V01 • V03) + (V02 • V03) - (V01 • V02)]/(V02 • V03),
K2 = [(V01 • V03) + (V02 • V03) - (V01 • V02)]/(V01 • V03),
K3 = [(V01 • V03) + (V02 • V03) - (V01 • V02)]/(V01 • V02).16. The device according to p. 15, characterized in that it includes means for calculating K1, K2 and K3 using the following equations:
K1 = [(V 01 • V 03 ) + (V 02 • V 03 ) - (V 01 • V 02 )] / (V 02 • V 03 ),
K2 = [(V 01 • V 03 ) + (V 02 • V 03 ) - (V 01 • V 02 )] / (V 01 • V 03 ),
K3 = [(V 01 • V 03 ) + (V 02 • V 03 ) - (V 01 • V 02 )] / (V 01 • V 02 ).
K1 = R2/(R1 + R2),
K2 = R3/(R1 + R3),
K3 = R2 • R3/(R1 • R2 + R1 • R3 + R2 • R3),
где R1, R2 и R3 - приблизительные величины сопротивлений указанных первого, второго и третьего резисторных средств.17. The device according to p. 15, characterized in that it includes means for calculating K1, K2 and K3 using the following equations:
K1 = R 2 / (R 1 + R 2 ),
K2 = R 3 / (R 1 + R 3 ),
K3 = R 2 • R 3 / (R 1 • R 2 + R 1 • R 3 + R 2 • R 3 ),
where R 1 , R 2 and R 3 are approximate values of the resistances of the indicated first, second and third resistor means.
K1 = [(V01 • V03) + (V02 • V03) - (V01 • V02)]/(V02 • V03),
K2 = [(V01 • V03) + (V02 • V03) - (V01 • V02)]/(V01 • V03),
K3 = [(V01 • V03) + (V02 • V03) - (V01 • V02)]/(V01 • V02),
средство для низкочастотной фильтрации K1, K2 и K3.24. The device according to p. 15, characterized in that it includes: means for measuring a plurality of samples V 01 , V 02 and V 03 over a plurality of cycles of said unknown voltage; means for calculating K1, K2 and K3 using the following equations:
K1 = [(V 01 • V 03 ) + (V 02 • V 03 ) - (V 01 • V 02 )] / (V 02 • V 03 ),
K2 = [(V 01 • V 03 ) + (V 02 • V 03 ) - (V 01 • V 02 )] / (V 01 • V 03 ),
K3 = [(V 01 • V 03 ) + (V 02 • V 03 ) - (V 01 • V 02 )] / (V 01 • V 02 ),
means for low-pass filtering K1, K2 and K3.
V1N = V01/K1,
V1N = V02/K2,
V1N = V03/K3,
V1N = V01 • V02 • V03/[(V01 • V03) + (V02 • V03) - (V01 • V02)].25. An electronic wattmeter, characterized in that it comprises: (a) voltage dividing means for dividing an unknown voltage into at least three frequency voltages (V 01 , V 02 and V 03 ); (b) measuring means including an analog-to-digital converter for measuring and digitizing said partial voltages; (c) computing means for calculating an unknown voltage using at least one of the following equations:
V 1N = V 01 / K1,
V 1N = V 02 / K2,
V 1N = V 03 / K3,
V 1N = V 01 • V 02 • V 03 / [(V 01 • V 03 ) + (V 02 • V 03 ) - (V 01 • V 02 )].
K1 = [(V01 • V03) + (V02 • V03) - (V01 • V02)]/(V02 • V03),
K2 = [(V01 • V03) + (V02 • V03) - (V01 • V02)]/(V01 • V03),
K3 = [(V01 • V03) + (V02 • V03) - (V01 • V02)]/(V01 • V02).26. The power meter according to claim 25, characterized in that it includes means for calculating K1, K2 and K3 using the following equations:
K1 = [(V 01 • V 03 ) + (V 02 • V 03 ) - (V 01 • V 02 )] / (V 02 • V 03 ),
K2 = [(V 01 • V 03 ) + (V 02 • V 03 ) - (V 01 • V 02 )] / (V 01 • V 03 ),
K3 = [(V 01 • V 03 ) + (V 02 • V 03 ) - (V 01 • V 02 )] / (V 01 • V 02 ).
K1 = R2/(R1 + R2),
K2 = R3/(R1 + R3),
K3 = R2 • R3/(R1 • R2 + R1 • R3 + R2 • R3),
где R1, R2 и R3 - приблизительные величины сопротивлений указанных первого, второго и третьего резисторных средств.27. The power meter according to claim 25, wherein said voltage dividing means includes first, second and third resistor means and means for calculating K1, K2 and K3 using the following equations:
K1 = R 2 / (R 1 + R 2 ),
K2 = R 3 / (R 1 + R 3 ),
K3 = R 2 • R 3 / (R 1 • R 2 + R 1 • R 3 + R 2 • R 3 ),
where R 1 , R 2 and R 3 are approximate values of the resistances of the indicated first, second and third resistor means.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US839,789 | 1992-02-21 | ||
US07/839,789 US5256979A (en) | 1992-02-21 | 1992-02-21 | Method and apparatus for measuring an unknown voltage, and power meter employing the same |
PCT/US1992/009563 WO1993017347A1 (en) | 1992-02-21 | 1992-11-06 | Method and apparatus for measuring voltage |
Publications (2)
Publication Number | Publication Date |
---|---|
RU94046440A true RU94046440A (en) | 1998-02-27 |
RU2143120C1 RU2143120C1 (en) | 1999-12-20 |
Family
ID=25280620
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU94046440A RU2143120C1 (en) | 1992-02-21 | 1992-11-06 | Method and device for voltage measuring |
Country Status (11)
Country | Link |
---|---|
US (1) | US5256979A (en) |
EP (1) | EP0627084B1 (en) |
CN (1) | CN1043817C (en) |
AU (1) | AU659259B2 (en) |
BR (1) | BR9207089A (en) |
CA (1) | CA2130093C (en) |
DE (1) | DE69229639T2 (en) |
ES (1) | ES2135420T3 (en) |
MX (1) | MX9206349A (en) |
RU (1) | RU2143120C1 (en) |
WO (1) | WO1993017347A1 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4211944A1 (en) * | 1992-04-09 | 1993-10-14 | Philips Patentverwaltung | High-voltage unit with a divider resistor arrangement |
US5514969A (en) * | 1994-05-24 | 1996-05-07 | Reliable Power Meters, Inc. | Impedance measurement in a high-voltage power system |
US5627759A (en) * | 1995-05-31 | 1997-05-06 | Process Systems, Inc. | Electrical energy meters having real-time power quality measurement and reporting capability |
US5831427A (en) * | 1996-12-11 | 1998-11-03 | Elsyn, Inc. | Voltage measuring device for a source with unknown resistance |
US20050231212A1 (en) * | 2004-04-14 | 2005-10-20 | Moghissi Oliver C | Voltage measurement with automated correction for input impedance errors |
US7506283B2 (en) * | 2004-10-08 | 2009-03-17 | Spirent Communications Of Rockville, Inc. | System and method for accelerating circuit measurements |
US9325133B2 (en) * | 2010-08-04 | 2016-04-26 | Hewlett-Packard Development Company, L.P. | Electrical adapter power rating determination |
CN103424590A (en) * | 2012-05-15 | 2013-12-04 | 苏州工业园区新宏博通讯科技有限公司 | Voltage sampling circuit for automatic reclosing lock |
FR2996645B1 (en) * | 2012-10-08 | 2015-12-11 | Thales Sa | METHOD AND DEVICE FOR MEASURING ELECTRICAL VOLTAGE |
US9166465B2 (en) * | 2013-05-21 | 2015-10-20 | Hamilton Sundstrand Corporation | Current divider for extended current measurement |
CN103698562B (en) * | 2013-12-26 | 2016-03-16 | 艾德克斯电子(南京)有限公司 | A kind of electronic load device and emulation mode thereof |
EP3413467A1 (en) * | 2017-06-06 | 2018-12-12 | Samsung SDI Co., Ltd | Passive conjunction circuit and voltage measurement circuit |
CN108844664B (en) * | 2018-08-20 | 2020-11-24 | 武汉中旗生物医疗电子有限公司 | Automatic calibration method and device for body temperature measurement circuit |
CN109581022A (en) * | 2019-01-29 | 2019-04-05 | 漳州市东方智能仪表有限公司 | Double-impedance input universal meter and method for displaying battery capacity on universal meter |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3320530A (en) * | 1964-07-08 | 1967-05-16 | Nexus Res Lab Inc | Quasi-logarithmic multimeter for providing an output which is a linear function of the logarithmic of the input |
US3454877A (en) * | 1965-07-02 | 1969-07-08 | Julie Research Lab Inc | Potentiometer means for providing a standardized precision low voltage |
US3519931A (en) * | 1966-05-02 | 1970-07-07 | Frank R Bradley | Scaling circuits for voltage dividers of the constant source impedance type |
US3702401A (en) * | 1968-11-22 | 1972-11-07 | Sanders Associates Inc | Bridge balancing circuit |
US3614611A (en) * | 1970-06-25 | 1971-10-19 | Fred Benjamin | Voltage and wattage indicator for arc lamps |
US4274143A (en) * | 1979-08-02 | 1981-06-16 | John Fluke Mfg. Co., Inc. | Recirculating RMS AC conversion method and apparatus |
CA1325037C (en) * | 1986-06-02 | 1993-12-07 | National Research Council Of Canada | Rms measuring apparatus for ac/dc voltages |
-
1992
- 1992-02-21 US US07/839,789 patent/US5256979A/en not_active Expired - Lifetime
- 1992-11-05 MX MX9206349A patent/MX9206349A/en active IP Right Grant
- 1992-11-06 AU AU31287/93A patent/AU659259B2/en not_active Expired
- 1992-11-06 DE DE69229639T patent/DE69229639T2/en not_active Expired - Lifetime
- 1992-11-06 ES ES92925099T patent/ES2135420T3/en not_active Expired - Lifetime
- 1992-11-06 WO PCT/US1992/009563 patent/WO1993017347A1/en active IP Right Grant
- 1992-11-06 CA CA002130093A patent/CA2130093C/en not_active Expired - Lifetime
- 1992-11-06 BR BR9207089A patent/BR9207089A/en not_active IP Right Cessation
- 1992-11-06 EP EP92925099A patent/EP0627084B1/en not_active Expired - Lifetime
- 1992-11-06 RU RU94046440A patent/RU2143120C1/en active
- 1992-12-21 CN CN92114562A patent/CN1043817C/en not_active Expired - Fee Related
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