KR890017536A - 광범위한 동적 전류 측정 장치 - Google Patents
광범위한 동적 전류 측정 장치 Download PDFInfo
- Publication number
- KR890017536A KR890017536A KR1019890006006A KR890006006A KR890017536A KR 890017536 A KR890017536 A KR 890017536A KR 1019890006006 A KR1019890006006 A KR 1019890006006A KR 890006006 A KR890006006 A KR 890006006A KR 890017536 A KR890017536 A KR 890017536A
- Authority
- KR
- South Korea
- Prior art keywords
- current
- voltage
- converter
- amplifier
- digital signal
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R13/00—Arrangements for displaying electric variables or waveforms
- G01R13/02—Arrangements for displaying electric variables or waveforms for displaying measured electric variables in digital form
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/257—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques using analogue/digital converters of the type with comparison of different reference values with the value of voltage or current, e.g. using step-by-step method
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
Description
Claims (8)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US192,059 | 1988-05-09 | ||
| US07/192,059 US4876502A (en) | 1988-05-09 | 1988-05-09 | Wide dynamic range current measuring apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR890017536A true KR890017536A (ko) | 1989-12-16 |
| KR0122844B1 KR0122844B1 (ko) | 1997-12-05 |
Family
ID=22708058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019890006006A Expired - Fee Related KR0122844B1 (ko) | 1988-05-09 | 1989-05-04 | 광범위한 동적 전류 측정 장치 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4876502A (ko) |
| JP (1) | JPH0249168A (ko) |
| KR (1) | KR0122844B1 (ko) |
| CA (1) | CA1312652C (ko) |
| MX (1) | MX168120B (ko) |
Families Citing this family (36)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2567100B2 (ja) * | 1988-06-22 | 1996-12-25 | 富士通株式会社 | 小型加速度測定記録装置 |
| US5258704A (en) * | 1989-09-25 | 1993-11-02 | General Electric Company | Electronic watthour meter |
| FR2656930B1 (fr) * | 1990-01-05 | 1992-10-02 | Alcatel Radiotelephone | Circuit de mesure numerique d'un signal electrique. |
| US5343200A (en) * | 1990-08-31 | 1994-08-30 | Canon Kabushiki Kaisha | Analog/digital converter with digital automatic gain control |
| US5142221A (en) * | 1990-11-23 | 1992-08-25 | John Fluke Mfg. Co., Inc. | Automatic function selecting multimeter |
| US5418677A (en) * | 1990-12-28 | 1995-05-23 | Eaton Corporation | Thermal modeling of overcurrent trip during power loss |
| US5270898A (en) * | 1990-12-28 | 1993-12-14 | Westinghouse Electric Corp. | Sure chip plus |
| US5525985A (en) * | 1990-12-28 | 1996-06-11 | Eaton Corporation | Sure chip |
| ZA919656B (en) * | 1990-12-28 | 1992-09-30 | Westinghouse Electric Corp | Voltage controlled power supply |
| US5815364A (en) * | 1991-10-18 | 1998-09-29 | Eaton Corporation | Ultrasonic coil current regulator |
| US5251157A (en) * | 1990-12-28 | 1993-10-05 | Westinghouse Electric Corp. | Process for offset adjustment of a microprocessor based overcurrent protective device and apparatus |
| DE4140112A1 (de) * | 1991-12-05 | 1993-06-09 | Leybold Ag, 6450 Hanau, De | Verfahren und schaltung zur messung von teilchenstroemen |
| DE4141039A1 (de) * | 1991-12-13 | 1993-06-17 | Datz Alexander | Messdatenerfassungsgeraet |
| US5396168A (en) * | 1992-03-27 | 1995-03-07 | Tandy Corporation | Digital multimeter with microprocessor control |
| KR100331438B1 (ko) * | 1995-08-26 | 2002-08-21 | 삼성전자 주식회사 | 전류센서를위한아날로그-디지탈변환기의분해능향상회로 |
| US5652526A (en) * | 1996-03-15 | 1997-07-29 | Southern California Edison Company | Electric motor analyzer |
| US6122296A (en) * | 1997-10-30 | 2000-09-19 | Shih; Kelvin | Multiplexer utilizing variable resistance, analog-to digital conversion, and/or digital-to-analog conversion |
| DE19925326B4 (de) * | 1999-01-15 | 2007-01-11 | Abb Patent Gmbh | Schaltung für einen Wechselstromwandler |
| US7119342B2 (en) * | 1999-02-09 | 2006-10-10 | Syagen Technology | Interfaces for a photoionization mass spectrometer |
| US7109476B2 (en) | 1999-02-09 | 2006-09-19 | Syagen Technology | Multiple ion sources involving atmospheric pressure photoionization |
| JP2001257592A (ja) * | 2000-03-09 | 2001-09-21 | Mitsubishi Electric Corp | 計測装置 |
| RU2190229C1 (ru) * | 2001-04-18 | 2002-09-27 | Ермаков Владимир Филиппович | Преобразователь переменного напряжения в цифровой код |
| RU2217768C2 (ru) * | 2001-04-20 | 2003-11-27 | ООО Компания "МИР" | Преобразователь переменного тока в унифицированные сигналы постоянного тока |
| US6737642B2 (en) | 2002-03-18 | 2004-05-18 | Syagen Technology | High dynamic range analog-to-digital converter |
| US6977494B2 (en) * | 2002-09-12 | 2005-12-20 | Landis+Gyr, Inc. | Switchable impedance circuit for current sensing an electricity meter |
| CN102353836B (zh) * | 2011-07-15 | 2014-09-10 | 珠海中慧微电子有限公司 | 宽范围电能表的电流通道增益动态调整方法 |
| CN103543319B (zh) * | 2013-09-06 | 2016-06-15 | 国家电网公司 | 电力系统内宽范围电流的高精度快速测量电路的测量方法 |
| EP3382406A1 (en) * | 2017-03-30 | 2018-10-03 | NorthQ ApS | A system and a method for estimation of current transported in a cable |
| CN109298229B (zh) * | 2017-07-25 | 2020-12-11 | 深圳市道通智能航空技术有限公司 | 一种计算电流采样芯片的系统增益的方法及装置 |
| RU187666U1 (ru) * | 2018-09-24 | 2019-03-14 | Евгений Борисович Колесников | Измерительный преобразователь переменного напряжения в постоянное |
| CN111579864A (zh) * | 2019-02-19 | 2020-08-25 | 睿宽智能科技有限公司 | 用于PCIe设备的大范围功率量测装置 |
| RU2729954C1 (ru) * | 2019-11-13 | 2020-08-13 | федеральное государственное бюджетное образовательное учреждение высшего образования "Южно-Российский государственный политехнический университет (НПИ) имени М.И. Платова" | Устройство для измерения переменного тока |
| JP2021086900A (ja) * | 2019-11-27 | 2021-06-03 | 株式会社オートネットワーク技術研究所 | フレキシブルプリント基板の接続構造 |
| CN111426873A (zh) * | 2020-05-13 | 2020-07-17 | 南京海兴电网技术有限公司 | 电子式交流传感器采样及计量电路 |
| TWI867340B (zh) * | 2021-09-30 | 2024-12-21 | 美商瓦特洛威電子製造公司 | 用於計算電加熱器之電氣特性之方法及系統 |
| CN119471211B (zh) * | 2025-01-15 | 2025-04-15 | 云南电网有限责任公司 | 一种针对微安级接地电流的可变量程动态增益采集方法 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3813609A (en) * | 1972-11-27 | 1974-05-28 | Petty Ray Geophysical Inc | Multiple stage sample normalizing amplifier with automatic gain prediction |
| US4016557A (en) * | 1975-05-08 | 1977-04-05 | Westinghouse Electric Corporation | Automatic gain controlled amplifier apparatus |
| JPS524859A (en) * | 1975-07-01 | 1977-01-14 | Seiko Epson Corp | Digital circuit |
| US4214233A (en) * | 1977-06-17 | 1980-07-22 | Motorola Inc. | Serial parallel analog-to-digital converter using voltage level shifting of a minimum reference voltage |
| US4490713A (en) * | 1978-11-17 | 1984-12-25 | Burr-Brown Inc. | Microprocessor supervised analog-to-digital converter |
| US4191995A (en) * | 1979-01-02 | 1980-03-04 | Bell Telephone Laboratories, Incorporated | Digital automatic gain control circuit |
| US4345331A (en) * | 1980-01-14 | 1982-08-17 | Locke Technology, Inc. | Apparatus for generating an electric field |
| JPS5753145A (en) * | 1980-09-16 | 1982-03-30 | Sony Tektronix Corp | Calibrator for analogue-digital converter |
| JPS57138208A (en) * | 1981-02-20 | 1982-08-26 | Hitachi Ltd | Power detecting circuit and gain control circuit using it |
| JPS5873231A (ja) * | 1981-10-27 | 1983-05-02 | Shimadzu Corp | Ad変換装置 |
| DE3574655D1 (de) * | 1984-05-15 | 1990-01-11 | Bbc Brown Boveri & Cie | Analog-digital-wandler. |
| US4626831A (en) * | 1985-04-19 | 1986-12-02 | Westinghouse Electric Corp. | Analog signal processing circuit |
| US4663586A (en) * | 1985-05-02 | 1987-05-05 | Hewlett-Packard Company | Device with automatic compensation of an ac attenuator |
-
1988
- 1988-05-09 US US07/192,059 patent/US4876502A/en not_active Expired - Lifetime
-
1989
- 1989-05-04 MX MX015914A patent/MX168120B/es unknown
- 1989-05-04 KR KR1019890006006A patent/KR0122844B1/ko not_active Expired - Fee Related
- 1989-05-04 CA CA000598761A patent/CA1312652C/en not_active Expired - Fee Related
- 1989-05-08 JP JP1115959A patent/JPH0249168A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US4876502A (en) | 1989-10-24 |
| MX168120B (es) | 1993-05-04 |
| JPH0249168A (ja) | 1990-02-19 |
| KR0122844B1 (ko) | 1997-12-05 |
| CA1312652C (en) | 1993-01-12 |
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