TW349170B - RMS converter using digital filteringby using a squaring circuit followed by an rms digital filter and a square root circuit - Google Patents

RMS converter using digital filteringby using a squaring circuit followed by an rms digital filter and a square root circuit

Info

Publication number
TW349170B
TW349170B TW086115227A TW86115227A TW349170B TW 349170 B TW349170 B TW 349170B TW 086115227 A TW086115227 A TW 086115227A TW 86115227 A TW86115227 A TW 86115227A TW 349170 B TW349170 B TW 349170B
Authority
TW
Taiwan
Prior art keywords
rms
digital
circuit
square root
converter
Prior art date
Application number
TW086115227A
Other languages
English (en)
Inventor
Steven D Swift
Clark N Huber
Michael E Kirita
Original Assignee
Fluke Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fluke Corp filed Critical Fluke Corp
Application granted granted Critical
Publication of TW349170B publication Critical patent/TW349170B/zh

Links

Classifications

    • 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
    • G01R19/02—Measuring effective values, i.e. root-mean-square values

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Analogue/Digital Conversion (AREA)
TW086115227A 1997-02-18 1997-10-16 RMS converter using digital filteringby using a squaring circuit followed by an rms digital filter and a square root circuit TW349170B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80202097A 1997-02-18 1997-02-18

Publications (1)

Publication Number Publication Date
TW349170B true TW349170B (en) 1999-01-01

Family

ID=25182638

Family Applications (1)

Application Number Title Priority Date Filing Date
TW086115227A TW349170B (en) 1997-02-18 1997-10-16 RMS converter using digital filteringby using a squaring circuit followed by an rms digital filter and a square root circuit

Country Status (5)

Country Link
EP (1) EP0862060A3 (zh)
JP (1) JPH10232250A (zh)
KR (1) KR19980069966A (zh)
CA (1) CA2214241A1 (zh)
TW (1) TW349170B (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI447400B (zh) * 2012-08-30 2014-08-01 Hycon Technology Corp 湧入電流量測裝置

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6064193A (en) * 1997-07-17 2000-05-16 Tektronix, Inc. Method and apparatus for measuring the mean square value of an electrical signal
DE19846787C1 (de) * 1998-10-10 2000-03-02 Micronas Intermetall Gmbh Verfahren und Vorrichtungen zum Bestimmen des exponentiell gewichteten Effektivwertes eines Signals
JP2005214932A (ja) * 2004-02-02 2005-08-11 Daihen Corp 信号処理装置、この信号処理装置を用いた電圧測定装置及び電流測定装置
CN103308748B (zh) * 2012-03-13 2015-08-12 盛吉高科（北京）科技有限公司 一种基于数字滤波的有效值测量方法及系统
US20140052397A1 (en) * 2012-08-20 2014-02-20 Po Yin CHAO Inrush current measuring device
US10492850B2 (en) * 2014-04-04 2019-12-03 Covidien Lp Systems and methods for calculating tissue impedance in electrosurgery
US20170131326A1 (en) * 2015-11-10 2017-05-11 Qualitau, Inc. Pulsed current source with internal impedance matching
KR101719251B1 (ko) * 2016-05-02 2017-03-23 전자부품연구원 전압 및 전류의 실효값 추정 장치 및 방법
US10809284B2 (en) * 2017-10-31 2020-10-20 Microchip Technology Incorporated Systems and methods for improved root mean square (RMS) measurement
PL237606B1 (pl) * 2017-12-28 2021-05-04 Sonel Spolka Akcyjna Sposób pomiaru prądu rozruchu urządzeń elektrycznych zasilanych w warunkach zmiennej częstotliwości napięcia zasilającego

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH672374A5 (zh) * 1986-11-04 1989-11-15 Bbc Brown Boveri & Cie
US4959608A (en) * 1989-10-16 1990-09-25 Hewlett-Packard Company Apparatus and method for extracting the RMS value from a signal
US5319370A (en) * 1992-08-31 1994-06-07 Crystal Semiconductor, Inc. Analog-to-digital converter with a continuously calibrated voltage reference
US5377131A (en) * 1992-12-31 1994-12-27 International Business Machines Corporation Digital amplitude estimator
JP3085496B2 (ja) * 1993-01-27 2000-09-11 横河電機株式会社 サンプリング式測定装置
JPH06273453A (ja) * 1993-03-23 1994-09-30 Yokogawa Electric Corp 交流信号測定装置
DE19613736C1 (de) * 1996-03-29 1997-08-21 Siemens Ag Verfahren zum Erzeugen eines dem Effektivwert eines periodischen elektrischen Signals proportionalen Meßsignals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI447400B (zh) * 2012-08-30 2014-08-01 Hycon Technology Corp 湧入電流量測裝置

Also Published As

Publication number Publication date
EP0862060A2 (en) 1998-09-02
EP0862060A3 (en) 1999-04-07
KR19980069966A (ko) 1998-10-26
JPH10232250A (ja) 1998-09-02
CA2214241A1 (en) 1998-08-18

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