RU2224261C1 - Procedure measuring complex impedance of bridge circuit with close inductive coupling and facility for its implementation - Google Patents
Procedure measuring complex impedance of bridge circuit with close inductive coupling and facility for its implementation Download PDFInfo
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- RU2224261C1 RU2224261C1 RU2002115860/09A RU2002115860A RU2224261C1 RU 2224261 C1 RU2224261 C1 RU 2224261C1 RU 2002115860/09 A RU2002115860/09 A RU 2002115860/09A RU 2002115860 A RU2002115860 A RU 2002115860A RU 2224261 C1 RU2224261 C1 RU 2224261C1
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- bridge circuit
- phase
- signal
- constant frequency
- arms
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- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
FIELD: measurement technology. SUBSTANCE: invention refers to equipment giving signal when measured parameter achieves specified value. Procedure measuring complex impedance of bridge circuit with close inductive coupling consists in formation of signals in arms of bridge by action on them with signal of constant frequency, in comparison of values of signals formed in arms of bridge, in making judgment on relation of complex impedance by difference signal of arms. In contrast to prototype reference value of measured parameter is set, signals formed in arms of bridge circuit are shifted in phase through 90 degrees, phase of difference signal is measured, phase of difference signal is compared with phase of signal of constant frequency. Then moment of phase shift of difference signal through 180 degrees is recorded and this recorded moment is used to make judgment on equality of complex impedance. Facility measuring complex impedance of bridge circuit with close inductive coupling has generator of constant frequency connected to one diagonal of bridge circuit, amplifier connected to another diagonal of bridge circuit, adjustable amplifier and element of unbalance of bridge circuit with characteristic identical to arm resistance connected in series are connected in parallel with one of compared arms of bridge circuit. Output of amplifier is connected through filter and first amplitude comparator to first input of phase-sensitive recorder. Generator of constant frequency is connected to second input of phase-sensitive recorder which output is output of facility through phase shifter and second amplitude comparator connected in series. EFFECT: enhanced speed and accuracy of measurement of complex impedance of bridge circuit. 2 cl, 2 dwg
Description
Текст описания в факсимильном виде (см. графическую часть)о Description text in facsimile form (see graphic part) about
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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RU2002115860/09A RU2224261C1 (en) | 2002-06-13 | 2002-06-13 | Procedure measuring complex impedance of bridge circuit with close inductive coupling and facility for its implementation |
Applications Claiming Priority (1)
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RU2002115860/09A RU2224261C1 (en) | 2002-06-13 | 2002-06-13 | Procedure measuring complex impedance of bridge circuit with close inductive coupling and facility for its implementation |
Publications (2)
Publication Number | Publication Date |
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RU2002115860A RU2002115860A (en) | 2004-02-10 |
RU2224261C1 true RU2224261C1 (en) | 2004-02-20 |
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RU2002115860/09A RU2224261C1 (en) | 2002-06-13 | 2002-06-13 | Procedure measuring complex impedance of bridge circuit with close inductive coupling and facility for its implementation |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2589273C2 (en) * | 2014-09-15 | 2016-07-10 | Открытое акционерное общество "Ракетно-космическая корпорация "Энергия" имени С.П. Королева" | Device for measuring complex resistance of bridge circuit |
-
2002
- 2002-06-13 RU RU2002115860/09A patent/RU2224261C1/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
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НОВИК А.И. Системы автоматического уравновешивания цифровых экстремальных мостов переменного тока. - Киев: Наукова думка, 1983, с.9-10. * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2589273C2 (en) * | 2014-09-15 | 2016-07-10 | Открытое акционерное общество "Ракетно-космическая корпорация "Энергия" имени С.П. Королева" | Device for measuring complex resistance of bridge circuit |
Also Published As
Publication number | Publication date |
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RU2002115860A (en) | 2004-02-10 |
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Legal Events
Date | Code | Title | Description |
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MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20090614 |