RU94038819A - Method for measuring parameters of impedance and device for its realization - Google Patents

Method for measuring parameters of impedance and device for its realization

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Publication number
RU94038819A
RU94038819A RU94038819/09A RU94038819A RU94038819A RU 94038819 A RU94038819 A RU 94038819A RU 94038819/09 A RU94038819/09 A RU 94038819/09A RU 94038819 A RU94038819 A RU 94038819A RU 94038819 A RU94038819 A RU 94038819A
Authority
RU
Russia
Prior art keywords
impedance
measurement
integration
active
sinusoidal
Prior art date
Application number
RU94038819/09A
Other languages
Russian (ru)
Other versions
RU2092861C1 (en
Inventor
А.Ю. Зенин
В.П. Мокшанцев
Е.А. Петров
Original Assignee
Российский институт мощного радиостроения
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.)
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Publication date
Application filed by Российский институт мощного радиостроения filed Critical Российский институт мощного радиостроения
Priority to RU94038819A priority Critical patent/RU2092861C1/en
Publication of RU94038819A publication Critical patent/RU94038819A/en
Application granted granted Critical
Publication of RU2092861C1 publication Critical patent/RU2092861C1/en

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  • Measurement Of Resistance Or Impedance (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

Abstract

FIELD: electric measurement technology, particularly, measurement and check of components of impedance. SUBSTANCE: method enables simultaneous measurement of active and reactive components of impedance including two-terminal networks having emf between poles constant or slowly changing in time as well as objects containing electrolytes to be conducted. Measurement of impedance by proposed method is carried out in the following way. Sinusoidal and rectangular voltages are generated in step across outputs of generator, sinusoidal one is fed into measurement circuit containing measured impedance. Voltage proportional to modulus of impedance with phase shift relative to sinusoidal voltage formed across output of generator equal to phase shift of impedance which is then filtered and fed into controlled integrator is generated at output of measurement circuit. Signals proportional to values of active and reactive components of measured impedance are formed in turn at output of controlled integrator as result of integration and are recorded later. While controlling process of integration and recording rectangular and sinusoidal voltages across outputs of generator are so synchronized that fronts and tails of rectangular voltage coincide with moments of transition of sinusoid through zero and are fed to unit forming controlling signals which forms permission signal and integration sign signal as well as signal of recording of integration results into storage. By permission signal controlled integrator is turned on in sequence into modes of measurement of active and reactive components. After termination of each integration mode signals from output of integrator are recorded into storage by recording signal from former of controlling signals. Circuit of device which realizes proposed method of measurement of impedance includes generator, measurement circuit incorporating measured impedance, low-pass filter, controlled integrator and unit forming controlling signals. EFFECT: simultaneous measurement of active and reactive components of impedance and increased measurement speed.

Claims (1)

Изобретение относится к электроизмерительной технике, а именно к измерению и контролю составляющих полного сопротивления. Изобретение позволяет осуществлять одновременное измерение активной и реактивной составляющих полного сопротивления, в том числе двухполюсников, имеющих между полюсами ЭДС, постоянную или медленно меняющуюся во времени, а также объектов, содержащих электролиты. Кроме того, предлагаемые способ и устройство позволяют повысить скорость измерения. Измерение полного сопротивления предлагаемым способом осуществляют следующим образом. На выходах генератора синхронно вырабатывают синусоидальное прямоугольное напряжения, синусоидальное подают на измерительную схему, содержащую измеряемое полное сопротивление. На выходе измерительной схемы получают напряжение, пропорциональное модулю йодного сопротивления и со сдвигом фазы относительно синусоидального напряжения, сформированного на выходе генератора, равным фазовому сдвигу полного сопротивления, которое затем фильтруют и подают на управляемый интегратор. В результате интегрирования на выходе управляемого интегратора поочередно формируют сигналы, пропорциональные значениям активной и рактивной составляющих измеряемого полного сопротивления, которые затем запоминают. При управлений процессом интегрирования и запоминания прямоугольное и синусоидальное напряжения на выходах генератора синхронизируют таким образом, чтобы фронты и срезы прямоугольного напряжения совпадали с моментами перехода синусоиды через нуль, и подают на блок формирования управляющих сигналов, формирующий сигналы разрешения и знака интегрирования, а также сигнал записи результатов интегрирования в блок памяти. Сигналом разрешения интегрирования управляемый интегратор поочередно включают в режим измерения активной и реактивной составляющих. После окончания каждого из режимов интегрирования сигналы с выхода интегратора по сигналу записи из формирователя управляющих сигналов записываются в блок памяти. Схема устройства, реализующего предлагаемый способ измерения полного сопротивления, содержит генератор, измерительную схему, содержащую измеряемое полное сопротивление, фильтр нижних частот, управляемый интегратор и блок формирования управляющих сигналов.The invention relates to electrical engineering, in particular to the measurement and control of the components of the impedance. The invention allows the simultaneous measurement of the active and reactive components of the impedance, including two-terminal, having between the poles of the EMF, constant or slowly changing in time, as well as objects containing electrolytes. In addition, the proposed method and device can increase the measurement speed. The measurement of the impedance of the proposed method is as follows. At the generator outputs, a sinusoidal rectangular voltage is simultaneously generated, a sinusoidal voltage is fed to a measuring circuit containing the measured impedance. The output of the measuring circuit receives a voltage proportional to the modulus of iodine resistance and with a phase shift relative to the sinusoidal voltage generated at the generator output equal to the phase shift of the impedance, which is then filtered and fed to a controlled integrator. As a result of integration at the output of the controlled integrator, signals are proportionally generated that are proportional to the values of the active and active components of the measured impedance, which are then stored. When controlling the integration and storage process, the rectangular and sinusoidal voltages at the generator outputs are synchronized so that the edges and slices of the rectangular voltage coincide with the moments when the sinusoid passes through zero and is fed to the control signal generation unit, which generates integration resolution and sign signals, as well as a recording signal results of integration into the memory block. The integration enable signal, the controlled integrator is alternately included in the measurement mode of the active and reactive components. After the end of each of the integration modes, the signals from the output of the integrator are recorded in the memory block by the recording signal from the shaper of control signals. The circuit of the device that implements the proposed method of measuring the impedance, contains a generator, a measuring circuit containing a measured impedance, a low-pass filter, a controlled integrator and a block for generating control signals.
RU94038819A 1994-09-29 1994-09-29 Method of measuring the impedance parameters and device intended for its realization RU2092861C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU94038819A RU2092861C1 (en) 1994-09-29 1994-09-29 Method of measuring the impedance parameters and device intended for its realization

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU94038819A RU2092861C1 (en) 1994-09-29 1994-09-29 Method of measuring the impedance parameters and device intended for its realization

Publications (2)

Publication Number Publication Date
RU94038819A true RU94038819A (en) 1996-07-20
RU2092861C1 RU2092861C1 (en) 1997-10-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU94038819A RU2092861C1 (en) 1994-09-29 1994-09-29 Method of measuring the impedance parameters and device intended for its realization

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RU2092861C1 (en) 1997-10-10

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