RU95108873A - Схема измерения тока - Google Patents
Схема измерения токаInfo
- Publication number
- RU95108873A RU95108873A RU95108873/09A RU95108873A RU95108873A RU 95108873 A RU95108873 A RU 95108873A RU 95108873/09 A RU95108873/09 A RU 95108873/09A RU 95108873 A RU95108873 A RU 95108873A RU 95108873 A RU95108873 A RU 95108873A
- Authority
- RU
- Russia
- Prior art keywords
- signal
- unit
- transformer
- circuit
- measuring circuit
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/20—Increasing resolution using an n bit system to obtain n + m bits
- H03M1/201—Increasing resolution using an n bit system to obtain n + m bits by dithering
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Measurement Of Current Or Voltage (AREA)
- Transformers For Measuring Instruments (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Burglar Alarm Systems (AREA)
- Amplifiers (AREA)
- Networks Using Active Elements (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Electrophonic Musical Instruments (AREA)
- Analogue/Digital Conversion (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
Схема измерения тока содержит трансформатор 3 с взаимной индуктивностью, интегрирующую схему 2 и псевдослучайную схему 1, которая добавляет меандровое колебание к сигналу от трансформатора 3 перед входом интегрирующей схемы 2 для того, чтобы интегрирующая схема 2 обеспечивала сигнал, представляющий измеренный ток, возмущенный треугольным псевдослучайным сигналом.
Claims (1)
- Схема измерения тока содержит трансформатор 3 с взаимной индуктивностью, интегрирующую схему 2 и псевдослучайную схему 1, которая добавляет меандровое колебание к сигналу от трансформатора 3 перед входом интегрирующей схемы 2 для того, чтобы интегрирующая схема 2 обеспечивала сигнал, представляющий измеренный ток, возмущенный треугольным псевдослучайным сигналом.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9406675A FR2720835B1 (fr) | 1994-06-01 | 1994-06-01 | Circuit de mesure de courant comprenant un transformateur à inductance mutuelle et un circuit intégrateur. |
FR9406675 | 1994-06-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
RU95108873A true RU95108873A (ru) | 1997-02-10 |
RU2160903C2 RU2160903C2 (ru) | 2000-12-20 |
Family
ID=9463749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU95108873/09A RU2160903C2 (ru) | 1994-06-01 | 1995-05-31 | Схема измерения тока |
Country Status (14)
Country | Link |
---|---|
US (1) | US5574380A (ru) |
EP (1) | EP0685743B1 (ru) |
CN (1) | CN1052073C (ru) |
AT (1) | ATE203830T1 (ru) |
CA (1) | CA2150635C (ru) |
DE (1) | DE69521938T2 (ru) |
DK (1) | DK0685743T3 (ru) |
ES (1) | ES2161837T3 (ru) |
FR (1) | FR2720835B1 (ru) |
GR (1) | GR3037034T3 (ru) |
HU (1) | HU216994B (ru) |
PT (1) | PT685743E (ru) |
RU (1) | RU2160903C2 (ru) |
ZA (1) | ZA954456B (ru) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003085430A (ja) * | 2001-09-12 | 2003-03-20 | Hitachi Ltd | 変圧器の受注支援方法 |
WO2007069102A2 (en) * | 2005-12-15 | 2007-06-21 | Koninklijke Philips Electronics N.V. | Current measurement circuit and method |
DE102006038031A1 (de) | 2006-05-26 | 2007-11-29 | Rohde & Schwarz Gmbh & Co. Kg | Messvorrichtung und Messverfahren zum Messen der Hüllkurvenleistung und des Leistungsmittelwerts |
CN103020379B (zh) * | 2012-12-26 | 2016-12-28 | 中国科学院微电子研究所 | 一种对互连结构进行电容提取的方法 |
US20140285180A1 (en) * | 2013-03-25 | 2014-09-25 | National Instruments Corporation | Circuit to Compensate for Inaccuracies in Current Transformers |
CN105353203A (zh) * | 2015-12-10 | 2016-02-24 | 成都宏凯瑞科技有限公司 | 一种基于带通滤波电路的多功能功率测试仪 |
JP2021016028A (ja) * | 2019-07-10 | 2021-02-12 | オムロン株式会社 | Ad変換装置、ad変換方法および信号処理装置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4187466A (en) | 1978-01-16 | 1980-02-05 | Rolm Corporation | Signal injection technique |
US4255707A (en) * | 1979-08-07 | 1981-03-10 | Westinghouse Electric Corp. | Electrical energy meter |
US4467320A (en) * | 1982-05-06 | 1984-08-21 | The Bendix Corporation | Measurement of a linear variable differential transformer signal by phase conversion |
GB8426822D0 (en) * | 1984-10-23 | 1984-11-28 | Day S | Static electricity meter |
FR2648565B1 (fr) * | 1989-06-16 | 1991-10-11 | Schlumberger Ind Sa | Circuit d'entree pour compteur d'energie electrique |
IT1240168B (it) * | 1990-04-05 | 1993-11-27 | Marelli Autronica | Sistema di conversione analogico/digitale a risoluzione incrementata. |
US5265267A (en) * | 1991-08-29 | 1993-11-23 | Motorola, Inc. | Integrated circuit including a surface acoustic wave transformer and a balanced mixer |
US5180979A (en) * | 1991-10-07 | 1993-01-19 | Honeywell Inc. | Position measurement sensor using a linear variable differential transformer with a triangular pulse input and output |
JPH06130098A (ja) * | 1992-09-07 | 1994-05-13 | Mitsubishi Electric Corp | 電子式電力量計等の信号入力制御方法および装置 |
ES2125961T3 (es) | 1993-02-26 | 1999-03-16 | Schlumberger Ind Sa | Convertidor de analogico a digital con una señal de activacion modulada. |
-
1994
- 1994-06-01 FR FR9406675A patent/FR2720835B1/fr not_active Expired - Fee Related
-
1995
- 1995-05-19 ES ES95401162T patent/ES2161837T3/es not_active Expired - Lifetime
- 1995-05-19 EP EP95401162A patent/EP0685743B1/en not_active Expired - Lifetime
- 1995-05-19 US US08/444,499 patent/US5574380A/en not_active Expired - Lifetime
- 1995-05-19 DE DE69521938T patent/DE69521938T2/de not_active Expired - Fee Related
- 1995-05-19 DK DK95401162T patent/DK0685743T3/da active
- 1995-05-19 PT PT95401162T patent/PT685743E/pt unknown
- 1995-05-19 AT AT95401162T patent/ATE203830T1/de not_active IP Right Cessation
- 1995-05-31 CA CA002150635A patent/CA2150635C/en not_active Expired - Fee Related
- 1995-05-31 RU RU95108873/09A patent/RU2160903C2/ru not_active IP Right Cessation
- 1995-05-31 ZA ZA954456A patent/ZA954456B/xx unknown
- 1995-05-31 CN CN95108569A patent/CN1052073C/zh not_active Expired - Fee Related
- 1995-06-01 HU HU9501594A patent/HU216994B/hu not_active IP Right Cessation
-
2001
- 2001-10-30 GR GR20010401904T patent/GR3037034T3/el not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CN1116309A (zh) | 1996-02-07 |
FR2720835A1 (fr) | 1995-12-08 |
FR2720835B1 (fr) | 1996-07-12 |
HU9501594D0 (en) | 1995-07-28 |
CA2150635A1 (en) | 1995-12-02 |
CN1052073C (zh) | 2000-05-03 |
EP0685743A1 (en) | 1995-12-06 |
CA2150635C (en) | 2002-11-05 |
GR3037034T3 (en) | 2002-01-31 |
HUT72215A (en) | 1996-03-28 |
ZA954456B (en) | 1996-03-19 |
US5574380A (en) | 1996-11-12 |
HU216994B (hu) | 1999-10-28 |
EP0685743B1 (en) | 2001-08-01 |
DE69521938T2 (de) | 2002-04-04 |
ES2161837T3 (es) | 2001-12-16 |
DK0685743T3 (da) | 2001-11-12 |
ATE203830T1 (de) | 2001-08-15 |
RU2160903C2 (ru) | 2000-12-20 |
PT685743E (pt) | 2002-01-30 |
DE69521938D1 (de) | 2001-09-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PD4A | Correction of name of patent owner | ||
PC4A | Invention patent assignment |
Effective date: 20061215 |
|
MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20100601 |