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Common mode noise rejection in measuring channels

  • Electronics and Radio Engineering
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Abstract

There is a solution proposed in this paper to reject common mode noise (caused by potential difference between a sensor and a measurement channel) in measurement channels. Its main idea is to provide power supply of measuring subsystem using either an accumulator or a capacitor, which is periodically charged from the electric network by switching on and off contacts of corresponding relay. During this procedure, a switchboard turns off the sensors from inputs of an analog part of the measuring subsystem. The control device must provide separate connection of the switchboard and charging relay.

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Authors and Affiliations

  1. School of Computer Science, Hubei University of Technology, Wuhan, 430068, China

    Su Jun & Orest Kochan

  2. Department of Information-Measuring Engineering, Lviv National Polytechnic University, ul. Karpinskoho 2, Lviv, 79013, Ukraine

    Su Jun & Orest Kochan

Authors
  1. Su Jun
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  2. Orest Kochan
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Correspondence to Su Jun.

Additional information

Original Russian Text © Su Jun and Orest Kochan, 2015, published in Pribory i Tekhnika Eksperimenta, 2015, No. 1, pp. 87–90.

The article was translated by the authors.

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Jun, S., Kochan, O. Common mode noise rejection in measuring channels. Instrum Exp Tech 58, 86–89 (2015). https://doi.org/10.1134/S0020441215010091

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  • DOI: https://doi.org/10.1134/S0020441215010091

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