High-precision signal amplification system

A signal amplification, high-precision technology, applied in the field of precision measurement, can solve problems such as voltage signal amplification

Active Publication Date: 2020-12-08
CHINA ELECTRIC POWER RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical solution of the present invention provides a system for precise

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Embodiment Construction

[0020] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.

[0021] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or over...

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Abstract

The invention discloses a high-precision signal amplification system. The system comprises an inverting amplification link, a voltage following link, an isolation link and a feedback compensation link, an input signal is boosted by N1 times through a reverse-phase amplification link, and an output signal of the reverse-phase amplification link is input into an isolation link through a voltage following link; a reference signal is provided for the feedback compensation link through the inverting amplification link; an output signal of the inverting amplification link is input into the isolationlink through the voltage following link; 1-N2 times of boosting is carried out on an output signal of the reverse-phase amplification link through the isolation link; the front-end circuit and the rear-end test equipment are electrically isolated through the isolation link; one-time output signals of the isolation link are extracted through the feedback compensation link, deviation signals between the one-time output signals of the isolation link and the standard input signals are compared, the deviation signals are input into the reverse-phase amplification link, and the reverse-phase amplification link dynamically adjusts the output signals according to the deviation signals.

Description

technical field [0001] The invention relates to the technical field of precision measurement, and more specifically, to a high-precision signal amplification system. Background technique [0002] Active electronic standard equipment in the prior art, such as active electronic voltage divider, etc., due to the limitation of the power supply voltage of electronic units such as internal operational amplifiers, its output is all low voltage signals, such as 5V or 10V. The rated voltage specified in the error test system such as the calibrator and the relevant standards of the transformer is 100V. The mismatch between the output signal of active electronic standard equipment and the rated voltage signal of traditional error measurement system and standard regulations greatly restricts the application and promotion of active electronic standard equipment. In order to establish an organic connection between the active electronic standard equipment and the existing voltage standard...

Claims

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Application Information

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IPC IPC(8): G01R1/30G01R35/00G01R35/02G01R1/28
CPCG01R1/30G01R35/007G01R35/02G01R1/28
Inventor 刘俭刘浩刁赢龙熊博杜百稳
Owner CHINA ELECTRIC POWER RES INST
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