RU2016146728A - Digital current meter - Google Patents

Digital current meter Download PDF

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Publication number
RU2016146728A
RU2016146728A RU2016146728A RU2016146728A RU2016146728A RU 2016146728 A RU2016146728 A RU 2016146728A RU 2016146728 A RU2016146728 A RU 2016146728A RU 2016146728 A RU2016146728 A RU 2016146728A RU 2016146728 A RU2016146728 A RU 2016146728A
Authority
RU
Russia
Prior art keywords
bridges
adc
input
amplifier
magnetosensitive
Prior art date
Application number
RU2016146728A
Other languages
Russian (ru)
Other versions
RU2016146728A3 (en
RU2666582C2 (en
Inventor
Виктор Владимирович Моршнев
Иван Александрович Решетников
Вениамин Георгиевич Стахин
Вадим Евгеньевич Флегонтов
Original Assignee
Акционерное общество "Зеленоградский нанотехнологический центр"
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 Акционерное общество "Зеленоградский нанотехнологический центр" filed Critical Акционерное общество "Зеленоградский нанотехнологический центр"
Priority to RU2016146728A priority Critical patent/RU2666582C2/en
Publication of RU2016146728A3 publication Critical patent/RU2016146728A3/ru
Publication of RU2016146728A publication Critical patent/RU2016146728A/en
Application granted granted Critical
Publication of RU2666582C2 publication Critical patent/RU2666582C2/en

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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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
    • G01R33/09—Magnetoresistive devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Measuring Magnetic Variables (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)

Claims (1)

Цифровой датчик тока, содержащий два магниточувствительных моста, установленных равно направленно, и два токопровода, соединенные так, что измеряемый ток течет в них от входа к выходу для установленных над ними мостами в противоположных направлениях, выходы мостов соединены соответственно с первым и вторым усилителями, выходы усилителей соединены с соответствующими входами третьего усилителя, отличающийся тем, что в качестве магниточувствительных мостов использованы магниторезистивные мосты, в цепь питания мостов дополнительно включен резистор, инструментальный усилитель с заданным напряжением смещения и усилением и АЦП, мосты питаются от источника напряжения и по цепи питания соединены параллельно, резистор соединен с инструментальным усилителем, выход которого соединен с входом опорного напряжения АЦП, выход третьего усилителя соединен с измерительным входом АЦП.A digital current sensor containing two magnetosensitive bridges installed equally directionally and two conductors connected so that the measured current flows into them from input to output for bridges installed above them in opposite directions, the outputs of the bridges are connected respectively to the first and second amplifiers, the outputs amplifiers are connected to the corresponding inputs of the third amplifier, characterized in that magnetoresistive bridges are used as magnetosensitive bridges, in addition to the bridge power circuit ene resistor instrumentation amplifier with a predetermined offset voltage and gain, and ADC axles powered by the voltage source and the power supply circuit are connected in parallel, a resistor connected to the instrumentation amplifier whose output is connected to the input of a reference ADC voltage, a third amplifier output coupled to the measuring input of the ADC.
RU2016146728A 2016-11-29 2016-11-29 Digital current meter RU2666582C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2016146728A RU2666582C2 (en) 2016-11-29 2016-11-29 Digital current meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2016146728A RU2666582C2 (en) 2016-11-29 2016-11-29 Digital current meter

Publications (3)

Publication Number Publication Date
RU2016146728A3 RU2016146728A3 (en) 2018-05-29
RU2016146728A true RU2016146728A (en) 2018-05-29
RU2666582C2 RU2666582C2 (en) 2018-09-11

Family

ID=62557370

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2016146728A RU2666582C2 (en) 2016-11-29 2016-11-29 Digital current meter

Country Status (1)

Country Link
RU (1) RU2666582C2 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19810369C1 (en) * 1998-03-10 1999-08-12 Siemens Ag Appts. to measure valve lift in petrol-driven internal combustion (IC) engine
US6756782B2 (en) * 2001-06-01 2004-06-29 Koninklijke Philips Electronics N.V. Magnetic field measuring sensor having a shunt resistor and method of regulating the sensor
US6667682B2 (en) * 2001-12-26 2003-12-23 Honeywell International Inc. System and method for using magneto-resistive sensors as dual purpose sensors
DE10342260B4 (en) * 2003-09-11 2014-11-20 Meas Deutschland Gmbh Magnetoresistive sensor in the form of a half or full bridge circuit
RU2321002C1 (en) * 2006-07-17 2008-03-27 Общество с ограниченной ответственностью "Технос" Current transducer
RU2445638C1 (en) * 2010-08-16 2012-03-20 Федеральное государственное унитарное предприятие "Научно-производственное объединение автоматики имени академика Н.А. Семихатова" Current sensor

Also Published As

Publication number Publication date
RU2016146728A3 (en) 2018-05-29
RU2666582C2 (en) 2018-09-11

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