Publication detail

Practical Aspects of Impedance Measurement using Operational Amplifier and Oscilloscope

SVOBODA, M. ŠOTNER, R. POLÁK, L.

Original Title

Practical Aspects of Impedance Measurement using Operational Amplifier and Oscilloscope

Type

conference paper

Language

English

Original Abstract

This paper deals with a readout-based low-frequency impedance measurement employing an operational amplifier and a special oscilloscope with frequency response analysis option for automatic measurement of Bode plots. The presented method is known from a point-to-point measurement using standard oscilloscopes and an external generator, but the main real limiting factors are not often evaluated and discussed. Limitations of the method, the real key features of the measurement setup and their impact on the validity of results are discussed in this work. The proposed concept represents a low-cost way of impedance measurement for fast and educational purposes. Measurement results were confirmed by theoretical and simulation ones. Their accuracy satisfies the low-frequency measurement of impedances within indicated limits and for intended purposes.

Keywords

Automatic measurement, capacitance, frequency response analysis, impedance measurement, inductance, operational amplifier, oscilloscope

Authors

SVOBODA, M.; ŠOTNER, R.; POLÁK, L.

Released

21. 4. 2022

Location

Košice, Slovakia

ISBN

978-1-7281-8686-3

Book

32nd International Conference Radioelektronika

Pages from

86

Pages to

89

Pages count

4

URL

https://ieeexplore.ieee.org/abstract/document/9764942

BibTex

@inproceedings{BUT178299,
  author="Marek {Svoboda} and Roman {Šotner} and Ladislav {Polák}",
  title="Practical Aspects of Impedance Measurement using Operational Amplifier and Oscilloscope",
  booktitle="32nd International Conference Radioelektronika",
  year="2022",
  pages="86--89",
  address="Košice, Slovakia",
  doi="10.1109/RADIOELEKTRONIKA54537.2022.9764942",
  isbn="978-1-7281-8686-3",
  url="https://ieeexplore.ieee.org/abstract/document/9764942"
}