ATA711075A - Vorrichtung zum erfassen des effektivwertes und/oder der leistung von elektrischen signalen - Google Patents

Vorrichtung zum erfassen des effektivwertes und/oder der leistung von elektrischen signalen

Info

Publication number
ATA711075A
ATA711075A AT711075A AT711075A ATA711075A AT A711075 A ATA711075 A AT A711075A AT 711075 A AT711075 A AT 711075A AT 711075 A AT711075 A AT 711075A AT A711075 A ATA711075 A AT A711075A
Authority
AT
Austria
Prior art keywords
determining
power
electrical signals
effective value
effective
Prior art date
Application number
AT711075A
Other languages
English (en)
Other versions
AT356792B (de
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of ATA711075A publication Critical patent/ATA711075A/de
Application granted granted Critical
Publication of AT356792B publication Critical patent/AT356792B/de

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/06—Measuring blood flow
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/24—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave
    • G01P5/241—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave by using reflection of acoustical waves, i.e. Doppler-effect
    • 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)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Molecular Biology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Power Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Amplifiers (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
AT711075A 1974-09-18 1975-09-17 Vorrichtung zum erfassen des effektivwertes und/oder der leistung von elektrischen signalen AT356792B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2444626A DE2444626C3 (de) 1974-09-18 1974-09-18 Vorrichtung zum Erfassen des Effektivwertes und/oder der Leistung von elektrischen Signalen

Publications (2)

Publication Number Publication Date
ATA711075A true ATA711075A (de) 1979-10-15
AT356792B AT356792B (de) 1980-05-27

Family

ID=5926114

Family Applications (1)

Application Number Title Priority Date Filing Date
AT711075A AT356792B (de) 1974-09-18 1975-09-17 Vorrichtung zum erfassen des effektivwertes und/oder der leistung von elektrischen signalen

Country Status (5)

Country Link
US (1) US4060763A (de)
AT (1) AT356792B (de)
DE (1) DE2444626C3 (de)
FR (1) FR2285618A1 (de)
GB (1) GB1523648A (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4259870A (en) 1979-02-26 1981-04-07 Howmedica Inc. Doppler method of measuring flow
CA1152564A (en) * 1981-06-08 1983-08-23 M. Nihat Yazar Electroexplosives, rf power safety margin measurement method
US4524446A (en) * 1982-07-13 1985-06-18 Westinghouse Electric Corp. Signal quality monitor for protective relay system
JPS5920149A (ja) * 1982-07-28 1984-02-01 富士通株式会社 超音波パルスドプラ血流計
US4608993A (en) * 1984-07-31 1986-09-02 Quinton Instrument Company Blood flow measurement device and method
US4807636A (en) * 1986-09-09 1989-02-28 Vital Science Corporation Method and apparatus for measuring volume fluid flow
CN105182048A (zh) * 2014-12-19 2015-12-23 国网电力科学研究院 一种消除由滤波引起的电力系统相量幅值测量误差的方法
US11129596B2 (en) * 2016-10-06 2021-09-28 General Electric Company Systems and methods for ultrasound multiplexing

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3159787A (en) * 1960-03-21 1964-12-01 Electro Instr Inc R. m. s. meter using amplifier with controlled feedback
US3571706A (en) * 1969-07-15 1971-03-23 Sentralinst For Ind Forskning Voltage measuring apparatus employing feedback gain control to obtain a predetermined output and a feedback loop to readout the gain value

Also Published As

Publication number Publication date
AT356792B (de) 1980-05-27
FR2285618A1 (fr) 1976-04-16
DE2444626B2 (de) 1979-01-04
DE2444626A1 (de) 1976-04-01
DE2444626C3 (de) 1979-09-06
GB1523648A (en) 1978-09-06
US4060763A (en) 1977-11-29
FR2285618B1 (de) 1977-11-25

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee