DE3689956D1 - Bestimmung des Effektivwertes des Stromes durch Abtastung des differentiellen Stromes. - Google Patents

Bestimmung des Effektivwertes des Stromes durch Abtastung des differentiellen Stromes.

Info

Publication number
DE3689956D1
DE3689956D1 DE3689956T DE3689956T DE3689956D1 DE 3689956 D1 DE3689956 D1 DE 3689956D1 DE 3689956 T DE3689956 T DE 3689956T DE 3689956 T DE3689956 T DE 3689956T DE 3689956 D1 DE3689956 D1 DE 3689956D1
Authority
DE
Germany
Prior art keywords
current
scanning
determination
effective value
differential
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.)
Expired - Fee Related
Application number
DE3689956T
Other languages
English (en)
Other versions
DE3689956T2 (de
Inventor
Hugo Stanley Ferguson
David Lee Hollinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atek Corp Chattanooga Tenn Us
Original Assignee
Dynamic Systems Inc
Dynamic Systems International Inc USA
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 Dynamic Systems Inc, Dynamic Systems International Inc USA filed Critical Dynamic Systems Inc
Application granted granted Critical
Publication of DE3689956D1 publication Critical patent/DE3689956D1/de
Publication of DE3689956T2 publication Critical patent/DE3689956T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/24—Electric supply or control circuits therefor
    • B23K11/25—Monitoring devices
    • 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
DE19863689956 1986-08-15 1986-08-15 Bestimmung des Effektivwertes des Stromes durch Abtastung des differentiellen Stromes. Expired - Fee Related DE3689956T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19860306314 EP0256183B1 (de) 1986-08-15 1986-08-15 Bestimmung des Effektivwertes des Stromes durch Abtastung des differentiellen Stromes

Publications (2)

Publication Number Publication Date
DE3689956D1 true DE3689956D1 (de) 1994-08-11
DE3689956T2 DE3689956T2 (de) 1995-02-23

Family

ID=8196098

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19863689956 Expired - Fee Related DE3689956T2 (de) 1986-08-15 1986-08-15 Bestimmung des Effektivwertes des Stromes durch Abtastung des differentiellen Stromes.

Country Status (2)

Country Link
EP (1) EP0256183B1 (de)
DE (1) DE3689956T2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2573302B2 (ja) * 1988-04-25 1997-01-22 株式会社東芝 抵抗溶接機の制御装置
EP0438637A1 (de) * 1990-01-24 1991-07-31 Landis & Gyr Business Support AG Verfahren und Anordnung zur Ermittlung eines Effektivwertes Ieff eines mit Hilfe eines Hallelementes und einer Verstärkeranordnung zu messenden Stromes
ES2096902T3 (es) * 1993-03-04 1997-03-16 Serra Soldadura Sistema y metodo de control electronico del procedimiento de soldadura en una instalacion de soldadura por resistencia.
US6064193A (en) * 1997-07-17 2000-05-16 Tektronix, Inc. Method and apparatus for measuring the mean square value of an electrical signal
CA2247572A1 (en) * 1997-11-10 1999-05-10 Fluke Corporation Rms converter for obtaining fast rms measurements
US8589101B1 (en) * 2013-03-04 2013-11-19 Neilsen-Kuljian, Inc. Method and apparatus for measuring RMS values of burst-fired currents
EP3382406A1 (de) * 2017-03-30 2018-10-03 NorthQ ApS System und verfahren zur schätzung des in einem kabel transportierten stroms
CN110927613A (zh) * 2019-11-29 2020-03-27 南京航空航天大学 一种航空宽变频电源信号有效值同步采样方法
CN113634863A (zh) * 2021-08-16 2021-11-12 南京米利嘉电子科技有限公司 一种基于次级电流检测的电阻焊质量监控方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR978684A (fr) * 1948-01-05 1951-04-17 Napier & Son Ltd Perfectionnements à la mesure des courants électriques
DE1011065B (de) * 1954-09-18 1957-06-27 Siemens Ag Einrichtung zum Messen nicht sinusfoermiger Wechselstroeme, insbesondere der kurzzeitigen Stroeme von mittels Entladungsgefaessen leistungsgesteuerten Schweissmaschinen
US3034057A (en) * 1959-01-16 1962-05-08 Gen Motors Corp Universal weld current analyzer
US3289079A (en) * 1963-03-04 1966-11-29 Duffers Ass R. m. s. measuring system having an integrating circuit including a transistorized capacitor discharge means controlled by the measured signal
USRE31774E (en) * 1979-02-16 1984-12-18 Leeds & Northrup Company Measuring system

Also Published As

Publication number Publication date
EP0256183B1 (de) 1994-07-06
DE3689956T2 (de) 1995-02-23
EP0256183A1 (de) 1988-02-24

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: ATEK CORP., CHATTANOOGA, TENN., US

8339 Ceased/non-payment of the annual fee