<abstract xmlns="http://www.w3.org/1999/xhtml"><p>AC magnetic field analyzers with a triaxial coil probe are widely used by health and safety professionals, in manufacturing, and in service industries. For traceable calibration of these analyzers, it is important to be able to generate a stable, homogeneous reference AC magnetic flux density (MFD). In this paper, the generating of AC amplitude MFD value of 150 <italic>μ</italic>T by single-layer Helmholtz type solenoid, described in previous work, was expanded up to a frequency of 100 kHz using the effect of serial resonance. A programmable capacitor array has been developed with a range of adjustable values from 50 pF to 51225 pF. In addition, the multi-layer search coil with a nominal area turns value of 1.3m<sup>2</sup>, used for adjusting AC MFD in the solenoid, has been modified by a transimpedance amplifier for use in a wider frequency range than up to 3 kHz. The possibility of using the programmable capacitor array up to 150 kHz has also been tested. An AC amplitude MFD value of 150 <italic>μ</italic>T can be generated with expanded uncertainty better than 0.6% up to 100 kHz.</p></abstract>

AC magnetic field analyzers with a triaxial coil probe are widely used by health and safety professionals, in manufacturing, and in service industries. For traceable calibration of these analyzers, it is important to be able to generate a stable, homogeneous reference AC magnetic flux density (MFD). In this paper, the generating of AC amplitude MFD value of 150 μT by single-layer Helmholtz type solenoid, described in previous work, was expanded up to a frequency of 100 kHz using the effect of serial resonance. A programmable capacitor array has been developed with a range of adjustable values from 50 pF to 51225 pF. In addition, the multi-layer search coil with a nominal area turns value of 1.3m2, used for adjusting AC MFD in the solenoid, has been modified by a transimpedance amplifier for use in a wider frequency range than up to 3 kHz. The possibility of using the programmable capacitor array up to 150 kHz has also been tested. An AC amplitude MFD value of 150 μT can be generated with expanded uncertainty better than 0.6% up to 100 kHz.

Generating an AC amplitude magnetic flux density value up to 150 <italic>μ</italic>T at a frequency up to 100 kHz

Journal of Electrical Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Generating an AC amplitude magnetic flux density value up to 150 T at a frequency up to 100 kHz

AC magnetic field analyzers with a triaxial coil probe are widely used by health and safety professionals, in manufacturing, and in service industries. For...

Generating an AC amplitude magnetic flux density value up to 150 μT at a frequency up to 100 kHz

Published Online: Jul 06, 2017

Page range: 216 - 219

Received: Jan 06, 2017

DOI: https://doi.org/10.1515/jee-2017-0032

Keywords
AC magnetic flux density, serial resonance, Helmholtz coils, search coil, solenoid

© 2017 Faculty of Electrical Engineering and Information Technology, Slovak University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Generating an AC amplitude magnetic flux density value up to 150 μT at a frequency up to 100 kHz

Published Online: Jul 06, 2017

Page range: 216 - 219

Received: Jan 06, 2017

DOI: https://doi.org/10.1515/jee-2017-0032

KeywordsAC magnetic flux density, serial resonance, Helmholtz coils, search coil, solenoid

© 2017 Faculty of Electrical Engineering and Information Technology, Slovak University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
AC magnetic flux density, serial resonance, Helmholtz coils, search coil, solenoid